HomeMy WebLinkAboutProposal NCE FY 25-26 Civil Eng Design Services1
2300 E Katella Ave, Suite 125
Anaheim, CA 92806
(657) 275-3018
A. Cover Letter
November 3, 2025
City of Diamond Bar
21810 Copley Drive
Diamond Bar, CA 91765
RE: FY 25/26 CIVIL ENGINEERING DESIGN SERVICES FOR: Residential & Collector Streets Rehabilitation, Arterial Streets
Rehabilitation, and Residential Neighborhood ADA Curb Ramps Improvement Project
Dear Members of the Selection Committee:
NCE has worked with the City of Diamond Bar (City) on the City’s most recent Residential & Collector Street Rehabilitation for
Areas 3 and 4, Arterials Streets Rehabilitation for Areas 3 and 4, and Areas 3, 4, and 5 Neighborhood ADA Curb Ramps
Improvement Projects and past PMP projects. With this extensive experience partnering with the City over the past several
years, NCE is intimately experienced with the City’s street maintenance and rehabilitation standards. We have successfully
provided the City with both design and construction support services and due to our proximity to the City we have effectively
helped the City navigate potential RFI’s that may arise, often visiting the site the same day a request is made by the City. We
are always learning, and will take the lessons learned from our previous project with the City including additional layers of QC
in our cost estimates. We know the City has shown interest in utilizing environmentally friendly ARHM for arterial streets and
CalRecycle has updated their funding guidelines making Diamond Bar once-again eligible for new upcoming grant applications.
We are prepared to hit the ground running and execute the City’s vision for this large-scale street improvement project.
Established in 1990, NCE is a client-focused consulting firm with extensive experience in civil and environmental engineering
for planning, design, and construction. We are recognized for delivering successful civil engineering projects and multi-year
pavement programs, including resurfacing, rehabilitation, road reconstruction, Complete Streets, green infrastructure,
construction support, and pavement management, for public agencies across California. Our integrated civil and pavement
engineering team specializes in municipal roadway infrastructure, tailoring designs to field conditions and providing
comprehensive, bid-ready solutions. NCE is known for technical expertise, reliable delivery on tight schedules, and clear
communication, with an approach that emphasizes timely submittals, robust Quality Assurance/Quality Control (QA/QC), and
cost-effective plans, specifications, and estimates (PS&E) packages. Our team offers the following advantages and
distinguishing features:
• Extensive experience developing PS&E for annual pavement preservation programs, including multi-year programs.
• Experienced and qualified professionals in civil, pavement, and transportation engineering.
• Proven record designing numerous curb ramps statewide, including standalone Community Development Block Grant
(CDBG) Curb Ramp Projects.
We have successfully implemented similar projects for other local agencies including the FY 2022-23, FY2021, FY 2020, and FY
2018 Street Rehabilitation Projects for the City of San Marino; Maintenance District 6 Pavement Rehabilitation Project Phase
II for the City of Glendale; CIP 2023-01 Street Rehabilitation for the City of Huntington Park; and FY 2022 and FY 2023 Street
Rehabilitation Projects for the City of Redondo Beach.
We are committed to delivering the bid-ready PS&E within five (5) months of Notice to Proceed, per the City’s review periods
and project milestones. Our proposal has been prepared based on our understanding of the RFP requirements terms and
conditions including Addendums 1 through 3. The signed Addendum Receipt Certification is included in Appendix B. The
proposal remains valid for 120 days from the date of submission. As Principal of NCE, Vivek Jha, MS, PE, is authorized to
negotiate and sign contracts on behalf of the firm. Jim Bui, PE, will serve as Project Manager and main point of contact for this
proposal. He can be reached by phone at (714) 606-8035 or via email at JBui@ncenet.com. We appreciate your consideration
of our proposal and look forward to continuing our collaboration with the City of Yorba Linda.
Sincerely,
NCE
Vivek Jha, MS, PE, Principal Jim Bui, PE, Project Manager
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
2
B. Project Understanding and Scope of Services
Based on the City’s Request for Proposal (RFP) and our preliminary site visit, NCE
understands the City is seeking a consultant to provide professional civil
engineering and pavement engineering services for the FY 25/26 Civil Engineering
Design Services For: Residential & Collector Streets Rehabilitation, Arterial Streets
Rehabilitation, and Residential Neighborhood ADA Curb Ramps Improvement
Project. This includes five base projects - 2 ADA curb camp projects (Area 6 & 7),
1 residential and collector street rehabilitation project (Area 5), and 2 arterial
street rehabilitation projects. Additionally, there are four optional projects – 1
ADA curb ramp project (Area 1), 1 residential and collector street rehabilitation
project (Area 6), and 3 arterial streets rehabilitation projects
For the purposes of the proposal, NCE reviewed the City’s 2025 Pavement
Management Report to gain an overview of the residential and collector project street design needs and also cross referenced
the additional arterial street selection from the RFP that was not part of the original PMP analysis. For this proposal, NCE
conducted a preliminary desktop review of these project sites to gain further knowledge of the current pavement conditions,
ADA compliance of curb ramps, condition of existing sidewalks, and curb and gutter deficiencies. This review provides us greater
insight into the existing site conditions and confidence that our approach will meet the stated objectives contained the RFP.
As part of the proposal process, NCE staff first compared the City’s Street list with the 2025 PMP Report and the multi-year
work plan. Based on the City’s latest PMP Report, the residential and collector projects include the streets that are in that area’s
work plan. The Area 5 Work Plan includes 89 street segments which are approximately 10.7 miles and the Area 6 Work Plan
includes 81 street segments which are approximately 10.6 miles. Both Work Plans exclude street segments with a PCI of 88 or
greater, so we understand these streets with high PCI’s will not receive any treatment or design at this time. The arterial project
is nearly 9.3 miles total with the breakdown being: Project 2 is approximately 3.5 miles, Project 5 is approximately 1.7 miles,
Optional Project 8 is approximately 1.7 miles, Optional Project 9 is approximately 0.4 miles, and Optional Project 10 is
approximately 2.0 miles. Based on the preliminary pavement condition survey of the streets listed in the RFP, the pavement is
generally in “Fair” to “Good” condition. Most sections appear suitable for pavement preservation treatments (e.g., slurry seal)
and hot-mix asphalt (HMA) overlays.
As primarily a maintenance-based project we understand the City seeks an effective design approach to maximize the number
of streets incorporated. Our approach will leverage our detailed understanding of the City’s existing pavement network and
design experience from road rehabilitation projects across California to provide innovative solutions to data collection and
plans preparation. Instead of traditional topographic surveying which is more suitable for roadway re-construction and
widening projects, our Team will utilize our experienced inspectors and engineers to collect crucial roadway design information
via handheld GIS data collection methods in conjunction with publicly available aerial imagery to derive high-level vicinity maps.
We found this to be especially useful during our last project for the City where the City’s Field Inspector was able to use the
NCE data provided in a Google Earth KMZ file to determine the locations and extents of base repairs in the field. This saved the
City from possible cost overruns due to unnecessary repairs.
Using a similar data collection method combined with existing as-built information and utility information, we’ll reserve slightly
more detailed basemap development for arterial street rehabilitation only. This tailored approach means more candidate
streets from each maintenance area will be studied and designed compared to traditional design methods.
For the standalone CDBG Curb Ramp projects we’ll perform engineering surveys utilizing hand tools to develop the project
basemaps and develop the curb ramp layouts. Per the RFP we assume the design will include up to 8 curb ramps per CDBG
Project. As we learned with the City during our previous project the City has many hilly corners, which can require very large
HMA conforms extending into the roadway. We’ll make sure to identify these location on the curb ramp plans and account for
the conform widths which could extend between 4’ - 8’ into the roadway. This will provide confidence that the Engineer’s
Estimates will be as accurate as practicable.
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
3 3
B.1 Proposed Approach
Pavement Design
NCE understands that the project revolves primarily around pavement maintenance for the selected roadways. This means
most of the project streets are candidates for rehabilitation treatments such as grind and overlay work or maintenance
treatments such as cape seals and slurry seals. During the project, one of NCE’s pavement engineers will perform a detailed
pavement condition survey of each street section based on visible distresses and holistic condition of the roadway that goes
beyond the typical PMP report and focuses on underlying causes for pavement deterioration. Our visual pavement investigation
will be summarized in tabular form for the City’s review and approval and compared against the presumptive PMP treatments
prior to beginning work with the detailed PS&E. With our visual investigation we will also be able to provide pavement
alternatives including recycled materials and rubberized surface layers and interlayers that are efficient at crack mitigation for
maintenance streets and provides a smooth, quiet ride for residents. This will optimize the City’s crucial maintenance funds to
provide the most cost-effective pavement treatments.
Our engineers will mark and collect the localized base repairs, which are often one of the costliest elements of an annual
preservation program. If streets identified for rehabilitation in the RFP are encountered to have potentially larger pavement
design issues during NCE’s visual design review, NCE will notify the City early in the design process to develop suitable design
options. Some possible issues we noted during our proposal review included excessive build-up of slurry seal or overlays on the
shoulder, creating a pavement lip at the gutter pan. This excessive buildup could be problematic for parked vehicles or proposed
pavement work. NCE will be able to assist the City in recommending edge milling or micro-milling opportunities to correct
adverse shoulder grades to accommodate additional rehabilitation and maintenance seals. Correctly identifying all of these
details are crucial in developing an accurate preliminary cost prior to proceeding into the final design stage.
We’ll also conduct a pavement coring and subgrade laboratory testing program to better understand the existing structural
sections and performance to help characterize larger subgrade problems or to design for the replacement of severely deficient
pavement surfaces requiring reconstruction. If any of the arterial streets identified for rehabilitation in the RFP are encountered
to have potentially larger pavement design issues during NCE’s visual design review, NCE will notify the City early in the design
process to discuss suitable design options.
Prior to the development of the 65% plans, NCE will present the preliminary findings of our pavement investigation, including
alternatives for the City’s input to guide the overall rehabilitation program. This will also allow our integrated pavement and
civil design team to suggest revisions to our scope and approach, including possible revisions to the paving limits or, if necessary,
the addition or removal of entire street segments to better meet the City’s budgetary constraints. We’re able to provide this
detailed cost analysis based on years of experience developing similar street preservation programs and understanding the
associated cost implications of ADA curb ramp repairs and other roadway construction elements prior to the formal plans
development. Providing this high-level summary before producing 65% plans allows us to avoid unnecessary revisions to the
street list after development of the 65% plans, helping lead to smoother, more efficient, and cost-effective PS&E development.
Concrete Design
As part of the street rehabilitation programs, we understand the City also wishes to address obvious deficiencies with concrete
flatwork such as curb and gutter repairs and cross gutters repairs and meet the requirements for ADA compliance of curb
ramps. As the cost of PCC flatwork and curb ramps may be a large component of a roadway’s maintenance costs, it’s important
to have a clear understanding of the existing conditions and extent of required design.
It is assumed that curb ramps containing a detectable warning surface (colored tile) are ADA-compliant and will not be re-
inspected. As part of our preliminary assessment, our Team also reviewed the existing intersections and estimates that
approximately 104 or 25% of existing curb-ramp eligible corners are non-ADA-compliant as shown on the table below. During
the design our Team will first confirm the curb and gutter repair criteria with the City and then mark the repair locations and
include them on the plans. Our Team will also collect sufficient field information to identify curb ramp standard plan
installations. It is assumed that 8 curb ramps each for Areas 6, 7, and 1 are part of Task 4 for CDBG-construction-funded curb
ramps, and the remainder will be part of the other street rehabilitation projects. Due to the hilly nature of the project streets,
special consideration will be given to the development of ADA-compliant curb ramps, which may need to have maximum 15-
foot-long flares in accordance with the latest Public Right-of-Way Accessibility Guidelines. This will help the City conserve
funding and avoid “chasing the grade” of existing roadways. We’ll also note the presence of utilities at the intersection corners
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
4 4
to help minimize costly change orders or RFI’s during construction of curb ramps. Lastly, we’ll note need for widened HMA
plugs for very hilly corners to help get more accurate construction costs for the curb ramps.
Project No. Project Description Compliant Non-
Compliant
No
Sidewalk
Project 1
ADA Curb Ramp Improvement Project (Area 6) [Only 8 are
assumed for a CDBG Curb Ramp Project. This will be taken from
the same 20 listed under Project 6]
- 8 -
Project 2
Arterial Street Rehabilitation
-Brea Canyon Rd: South Diamond Bar Blvd. to Pathfinder Rd.
-Brea Canyon Rd: Pathfinder Rd. to Golden Springs Dr.
-Diamond Bar Blvd: SR-60 Off-Ramp to Northerly City Limit
35 12 1
Project 3 ADA Curb Ramp Improvement Project (Area 7) [Only 8 are
assumed for a CDBG Curb Ramp Project.] - 8 -
Project 4 Residential & Collector Streets Rehabilitation (Area 5) 131 34
Project 5 Arterial Street Rehabilitation:
-Pathfinder Rd: Diamond Bar Blvd. to Westerly City Limits. 24 2
Project 6
[Optional] Residential & Collector Streets Rehabilitation (Area 6) 104 20 -
Project 7
[Optional]
ADA Curb Ramp Improvement Project (Area 1) [Only 8 are
assumed for a CDBG Curb Ramp Project] - 8 -
Project 8
[Optional]
Arterial Street Rehabilitation:
-Grand Ave: Diamond Bar Blvd. to Lavender Dr.
-Diamond Bar Blvd: Clear Creek Canyon Dr. to Golden Springs Dr.
21 14
Project 9
[Optional]
Arterial Street Rehabilitation:
-Temple Ave/Avenida Rancheros: Diamond Bar Blvd. to City Limits 2 6
Project 10
[Optional]
Arterial Street Rehabilitation:
-Diamond Bar Blvd.: Pathfinder Rd. to South of Fallow Field Dr.
-Brea Canyon Road: Diamond Bar Blvd. to Southerly City limits.
26 0 1
Totals 308 104 2
Basemap and PS&E
NCE has had success completing hundreds of designs for roadway maintenance project without the need for topographic survey
but instead utilizing a combination of aerial imagery for the tracing of paving limits, GIS Parcel maps, and supplemental field
surveys by our staff for relevant design elements. This has provided many of our clients cost-effective solutions to tackling city-
wide maintenance projects. From prior experience with the City, we understand that the City desires 1” = 100’ scale plans for
the collector and residential streets. NCE has experience providing large-scale plans for maintenance projects, including a more
streamlined vicinity map approach with roadway centerline data, accompanied by relevant summary tables identifying major
work items such as curb and gutters and base repairs (digouts).
We also understand that the City seeks 1” = 40’ scale plans for the arterial rehabilitation streets. NCE will prepare both civil
improvement plans and striping plans for the arterials to replace striping in kind with the addition of evaluating bike lane
enhancements per the City’s Bikeway Master Plan.
NCE will prepare engineering plans, specifications, and engineer’s estimate of probable construction cost (PS&E) at the 65%
draft, 90% draft, and Final milestones for the road rehabilitation projects. Our plans will focus primarily on pavement
maintenance and will provide plans suitable for the pavement work, including necessary concrete flatwork and utility
adjustments.
NCE will prepare engineering plans, specifications, and engineer’s estimate of probable construction cost (PS&E) at the 65%
draft, and Final milestones for the CDBG-funded curb ramp projects. Our plans will focus on key dimensions such as curb height
that determines the ramp lengths and note existing sidewalk slopes to compensate for hilly environments that might
necessitate longer ramps. The plans will be prepared as a repair book on 8.5” x 11” sheets that can be attached to the project
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
5 5
specifications for bidding. This simplified approach to plans development and acceleration of plans development from the 60%
draft directly to Final will provide a more productive design.
Despite well-thought-out PS&Es, there may always exist unknown field conditions and questions that arise during construction.
NCE stands by our pavement engineering designs and will be available to the City to provide design services during bidding and
construction. One such service is helping City staff re-mark base repairs with the Contractor to avoid potential
misunderstanding and costly overruns during the construction of base repairs.
Assumptions: As the project focuses primarily on pavement rehabilitation, we assume:
• City to provide all available utility data, as-builts, and relevant design standards.
• Road rehabilitation, including curb ramps, can be designed within the existing City right-of-way (ROW).
• No major re-grading and drainage re-design or drainage analysis is required, which will require topographic surveying.
• No permits are anticipated beyond a no-fee City encroachment permit for optional coring work.
• If needed, NCE can support the City’s effort to secure Caltrans Encroachment Permits for work immediately adjacent
to on/off-ramps or over/under-passes.
• No anticipated geometric alterations to intersections or lane reconfigurations.
• Striping and markings will be replaced in “like-kind”, with the addition of bikeway improvements on arterials per the
City’s Master Plan. No signage plans are required, except as required to match proposed bikeway improvements.
• No utility relocation design.
B.2 Scope of Services
Task 1 – Project Management and Meetings
NCE’s Project Manager, Jim Bui, PE, will serve as the City’s single point of contact and will have primary responsibility for
coordinating the efforts of the project team. Specific project management tasks to be conducted by Jim include monthly
budgeting, invoicing, scheduling, and general project administration. Jim will arrange a kick-off meeting with the City to initiate
the work. The objectives of the kick-off meeting will be:
• Review the scope of work.
• Establish paths of communication.
• Review project schedule and critical milestones.
• Review project requirements, including design
objectives, budget, constraints, and criteria. The
City’s requirements will be further defined during
the meeting.
• Review and discuss the pertinent City standards,
provisions, and practices.
• Review City Standard Design Criteria and latest City-
adopted formats.
• Request background information and as-builts.
• Obtain electronic file of the City’s cover sheet
template, title block, and CAD Standards.
Whether a simple preventative maintenance project or a complex reconstruction project, it is critical to establish effective lines
of communication with and coordination among the various stakeholders from the start to deliver a high-quality project within
budget and on schedule. At the kick-off meeting, key deliverables for each task and the project schedule will be reviewed and
adjusted accordingly to meet the City's needs.
The following meetings are included in the scope: kick-off/preliminary meeting (1 hour) per project and monthly virtual
progress meetings. The purpose of these meetings will be to confirm project limits, identify and resolve design issues that may
surface, present design alternatives and recommendations, and continue coordination with project stakeholders, as necessary.
Deliverables: Kick-Off meeting and monthly progress meeting agendas and minutes.
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
6 6
Task 2 – Pavement Design and Program Review
Task 2.A Pavement Surveys and Design
For each of the maintenance areas, one of NCE’s pavement engineers will perform a pavement
condition survey of each street section based on visible distresses to determine the most
appropriate design recommendations. Understanding the most suitable design treatments, one
of NCE’s engineers will mark base repair (digout) locations in the field in white paint and tabulate
quantities. The surveys go beyond those conducted as part of the PMP and will generally cover
the travel and parking lanes. These surveys will help validate the preliminary results and
recommendations of the City’s 2025 Pavement Management Report (PMP).
NCE’s pavement engineers will perform a pavement condition survey of each street section
based on visible distresses to determine the appropriate design recommendations. This
pavement condition survey will generally note the presence of load-related and environmental distresses, such as alligator
cracking, longitudinal and transverse cracking, rutting, patches and utility cuts, distortions, and depressions as they pertain to
developing appropriate pavement treatments.
During the survey, NCE will identify and document constructability issues, including existing asphalt concrete (AC) build-ups
where performing a slurry seal or overlay would require a wedge grind along the gutter lip to avoid problems.
The results of our inspection will be summarized in tabular form by street segment, including proposed treatments and costs.
If the pavement treatments require adjustment to fit within the City’s target construction budget, we can make early
adjustments to the treatments or paving limits, saving valuable design efforts. Following this analysis, NCE will prepare a
comprehensive technical memorandum summarizing the finalized street selections and recommended rehabilitation and
preservation treatments for City review and approval, which will be the basis of commencing the 65% PS&E.
NCE will document localized base repairs using GPS equipment with a typical accuracy up to 2-5 feet. The collected data will be
processed in GIS and delivered as a KMZ file, detailing the street name, address, and dimensions of each repair.
Our scope of work and condition surveys do not address issues including, but not limited to traffic, safety and road hazards,
geometric issues, or short-term maintenance that should be performed (i.e., pothole repairs).
Deliverables: Pavement Treatment Recommendations Table including preliminary construction costs; Pavement Treatment
Recommendations GIS Figure for each maintenance area; Pavement Evaluation Memo; and Base Repair photo log (KMZ) with
geo-tagged locations.
Task 2.B Pavement Coring, Laboratory Testing and Pavement Design Report.
NCE will obtain pavement core samples to support the evaluation of potential subgrade deficiencies. Pavement coring will
enable NCE to verify existing layer thicknesses, identify material types, and assess subgrade conditions. These findings are
essential for developing accurate pavement designs and determining cost-effective and durable rehabilitation strategies. This
information is critical for developing accurate pavement designs and selecting cost-effective and durable rehabilitation
strategies.
NCE will perform up to two (2) days of pavement coring for each residential / collector streets project and up to one (1) day
of coring for each arterial project. Cores will be marked for utility clearance via DigAlert®, and thickness/material type of
asphalt, concrete pavement, aggregate base, and reinforcing fabric will be recorded. As no pavement reconstruction is
anticipated at this time, subgrade laboratory testing is not included in our proposal, but may be included for additional scope
and fee if later required.
NCE will then compile the coring data and append it to its pavement design memorandum. Each core sample will be logged
and stored by NCE and retained through the duration of the project including construction before they are disposed.
Our scope of work and condition surveys do not address issues including, but not limited to safety and road hazards, geometric
issues, major drainage or grading issues, or short-term maintenance that should be performed (i.e., pothole repairs).
Temporary traffic control will be provided by a third-party vendor in accordance with the 2024 WATCH Manual. It is assumed
that formal traffic control plans are not required, but may be provided for additional scope and fee if required.
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
7 7
A Pavement Design Report will be prepared summarizing condition survey results, coring and lab data, and including:
• Recommended pavement repairs, overlay
thicknesses, and mill depths
• Preliminary cost estimates
• Alternatives analysis (e.g., Hot Mix Asphalt, Asphalt
Rubber Hot Mix (ARHM), recycling methods,
Asphalt-Rubber Aggregate Membrane, interlayers)
Deliverables: Draft and Final Pavement Design Report with design tables and laboratory summaries.
Task 3 – Utility Coordination and Potholing
NCE will coordinate with utility agencies early in the design process of the Street Rehabilitation Projects to help avoid potential
construction delays and unnecessary disruptions to public services. Utility coordination will be a critical item to keep utility
providers informed about the project and schedule to allow for proper notification and planning should utility providers have
planned maintenance projects within the subject street sections and/or need to lower/adjust their utilities to accommodate
street rehabilitation. NCE will utilize the City-provided utility contact list and prepare a Utility “A Letter” on City letterhead for
City distribution. Working with other agencies, we have observed that utility letters receive more prompt attention when
distributed by a City. This can also help avoid utility agencies assessing mapping and reproduction costs and lower the cost of
the utility coordination tasks. NCE will then track the progress of inbound and outbound responses in a Utility Tracking Matrix.
NCE will coordinate with the City so that the early notification following our revised Treatment Recommendation List from Task
2 will allow utility providers to perform maintenance on their facilities prior to moratorium on the street paving area and/or
assess their utilities and the possible need to lower/adjust their facilities, which can take up to a year or longer.
Once the detailed 65% PS&E has been prepared, or at a later City-preferred milestone NCE will also prepare a Utility “B Letter”
on City letterhead for City distribution. This second letter will inform utility agencies of impending construction and clear the
way for successful project bidding and construction.
As part of our streamlined project approach for the CDBG-funded ADA Curb Ramp Projects we assume standard plan curb ramp
installation and field-fitting by the contractors. Therefore, no utility impacts are anticipated and utility coordination for these
projects is not included in our scope.
If there are utility conflicts within one of the Street Rehabilitation Projects, a potholing allowance is included. This will include
up to one (1) day of potholing which includes up to 5 test holes. Test holes are less than 7” in depth and will be backfilled with
native materials. Temporary traffic control will be provided by a third-party vendor in accordance with the 2024 WATCH
Manual. It is assumed that formal traffic control plans are not required, but may be provided for additional scope and fee if
required.
Deliverables: Utility Notification “A Letters” and Utility Contact Matrix for Street Rehabilitation Projects; Utility Notification “B
Letters” and Utility Contact Matrix for Street Rehabilitation Projects; Utility pothole data sheet as-needed
Task 4 – Plans, Specifications & Estimates – ADA Curb Ramp Projects
We understand for the CDBG-funded ADA Curb Ramp Projects the City desires the design of 8 curb ramps per year for each of
the 3 maintenance Areas included in this program. We also understood that the Federal funding only applies to the construction
phase of the Curb Ramp Projects and that federal design provisions are not applicable to the design portion including the PS&E,
which will adhere to local City design standards. We assume that the curb ramps do not require detailed topographic surveying
or field inspections, no utility work beyond minor adjustment of frames and covers to grade, no larger intersection geometric
design or analysis is required, and that they may be field fit during construction with only basic design information.
For each of the Curb Ramp Projects NCE’s engineer will collect key curb ramp layout information including the curb heigh on
both sides of the proposed ramp location, existing sidewalk widths, and prevailing sidewalk slope. The presence of major
utilities such as catch basins, traffic signals, and utility vaults or pull boxes will also be noted during our inspection. With the
collected information, a basic layout of the proposed curb ramp will be developed by one of our civil engineers on 8.5” x 11”
sheets identifying major conflicts or field fitting requirements. Curb ramp design layouts will denote the key information
collected sufficient for an experienced curb ramp contractor to field-fit and install a 2024 APWA Greenbook standard plan curb
ramp, or similar City standard curb ramp. These plans will also indicate necessary HMA plugs and approximate areas.
The layouts will include either 1 or 2 curb ramps per sheet at a suitable scale 1” = 5’ or similar on a City-provided Title Block. If
needed, a basic Title Sheet with general construction notes may also be prepared. The 8 curb ramps will be combined into a
curb ramp installation book suitable for attaching to the Project Specifications for bidding. NCE will also develop Technical
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
8 8
Specifications for the installation of standard plan curb ramps. It is assumed the City will prepare the upfront specifications for
bidding. Lastly, NCE will also prepare a basic construction cost estimate with the 1 primary bid item for the curb ramps, and
other basic bid items per the City’s standard bidding process such as mobilization or traffic control. Altogether, these items will
constitute NCE’s plans, specifications, and engineer’s estimate of probable construction cost (PS&E) package for each of the 3
ADA Curb Ramp Projects.
Development of the 65% draft PS&E package will also incorporate an internal quality-control (QC) review by senior staff. Once
the internal QC is done, we will prepare a 65% draft PS&E package for City review and comment. Finally, after NCE receives the
City’s written review comments, we will address the review comments and finalize into a bid-ready Final PS&E.
Deliverables: ADA Curb Ramp Project PS&E 65% Draft - electronic submittal; ADA Curb Ramp Project Final PS&E - electronic
submittal
Task 5 – Plans, Specifications & Estimates – Residential & Collector Streets Rehabilitation & Task 6 – Plans,
Specifications & Estimates – Arterial Street Rehabilitation
Task 5.A. and 6.A Design Data Gathering
Starting with the Revised Street Treatment Recommendations prepared as part of Task 2, additional design information will be
collected for the development of engineering design plans for various residential, collector, and arterial streets. We understand
that the street segments selected for Area 5 and 6 are slated for surface seal treatments or rehabilitation only and that no
pavement reconstruction or roadway re-grading is anticipated. Therefore, NCE’s approach to data collection and basemap
preparation will not rely on traditional topographic surveying methods but instead be based upon publicly available aerial
imagery and LA County GIS Parcel data. Our Team will supplement this basemap by collecting key roadway information suitable
for the development of the surface seal plans and rehabilitation plans.
Our team will collect key roadway features and geometry to aid in the development of our project basemap suitable for the
annual preservation program plans. NCE’s engineers and field staff will walk the project streets and collect key geometric
information such as roadway widths and cross slopes in the shoulder utilizing hand tools, including measuring wheels, tape
measures, and digital smart levels.
NCE’s inspectors will collect key information such as required curb & gutter (C&G) repairs for segments severely damaged as
in the case of tree-root related uplift and areas obviously uplifted at the flowline and impeding drainage. Also, all the
intersection cross gutters containing a channel will be collected for replacement with a Greenbook Standard Plan cross gutter
or similar City Standard plan.
Surface visible utilities, including manhole lids, pull boxes, valve boxes, traffic signal detector loops, and catch basins within the
paving limits, will be approximately located in the field using Geographic Information System (GIS) methods through a
combination of handheld Global Positioning System devices and publicly available aerial imagery. Underground utility mapping,
such as utility potholing or ground penetrating radar (GPR), is not included.
Intersection corners with sidewalks and no curb ramp or curb ramps missing a detectable warning surface will be inspected for
key curb ramp layout information. As part of our preliminary proposal reconnaissance, we identified up to 104 non-compliant
curb ramps. Data collection for these curb ramps includes the curb height on both sides of the proposed ramp location, existing
sidewalk widths, and prevailing sidewalk slope. The presence of major utilities in the sidewalk, such as catch basins, traffic
signals, and utility vaults or pull boxes, will also be noted during our inspection.
Task 5.B and 6.B 65% PS&E
Basemap Preparation. NCE will utilize the field data collected under Tasks 5.A and 6.A in conjunction with publicly available
aerial imagery to develop a suitable project basemap for pavement preservation design, including ancillary concrete repairs
and ADA curb ramp upgrades. The basemap will also depict surface visible utility features such as manholes and utility valves
sufficient to call out for protection or adjustment during paving operations.
NCE will utilize a combination of publicly available Los Angeles County GIS parcel limits, GIS City limits, and City-provided as-
builts to depict necessary ROW information for collaboration with stakeholders and aid in depicting paving limits. Based on our
understanding of the pavement rehabilitation scope, no additional ROW is required for the design of the project.
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
9 9
Based on data needs discussed at the kick-off meeting, NCE will also request additional as-built information or site-specific
information available to the City and pertinent to the project development. NCE will integrate this information into our project
basemap, utilizing the City-provided survey as a starting point.
65% Design.
Residential and Collectors
The 65% draft PS&E will incorporate the various data collection efforts, basemap, and pavement design compiled as part of
previous tasks, including available as-built information from the City. The 65% roadway plans will incorporate typical design
elements, including roadway improvement plans, pavement treatment details, base repairs (digouts) locations and quantities,
wedge grinds, conform grind locations at intersecting side streets, C&G repairs, and limits of paving work. Surface visible utility
structures within the paving footprint will be identified on the Plans for either adjustment or protection as appropriate. As no
pavement reconstruction is anticipated, underground utility lines will not be mapped on the plans.
For the residential and collector plans, only a relevant APWA Greenbook Standard Plan callout for curb ramp Case will be
denoted; no general layout or ramp detail will be provided. Due to the hilly topography, some curb ramp flares may be 15-foot-
long maximum and may be noted on the plans for all street types. Where very large HMA plugs are required to conform to
existing topography, a special notation will be indicated on the plans.
The Plans will be prepared in AutoCAD format on 24” x 36” sheets, utilizing the City Title Block and CAD Template as agreed
upon during Task 1 and drawn at a scale of 1” = 100’ for residential and collector streets (or as appropriate and listed below).
Anticipated 65% Residential and Collector Street Improvement Plan List:
• Title Sheet with City's General Notes and Signature Block
• Residential and Collector Plan Sheets (horizontal scale 1" = 100') with construction notes
Arterials
The 65% draft PS&E for arterials will incorporate similar plan set as the residentials and collectors. In general, no sidewalk
information will be depicted on the plans, except for the edge of curb and gutter for arterial street plans. On the arterial street
plans, curb ramp replacements will be designed per APWA Greenbook Standard Plans or similar City Standards, and the
approximate shape and relative size will be drawn on the Plans, with a corresponding callout for the relevant Standard Plan
Case. In general, no significant alteration of curb lines or utility relocation is anticipated for these facilities; therefore, no details
will be provided.
Striping plans will only be prepared for arterial streets and will generally only include replacement of pavement striping and
markings in like-kind. The striping plans will also include the evaluation and design of new or improved bike lanes in accordance
with the City’s Complete Street Policy and current Caltrans Standards.
Anticipated 65% Arterial Street Improvement Plan List:
• Title Sheet with City's General Notes and Signature Block
• Arterial Improvement Plan Sheets (horizontal scale 1" = 40') with construction notes
• Arterial Striping Plan Sheets (horizontal scale 1" = 40') with construction notes
The Engineer’s Estimate of Probable Construction Cost will be prepared in Microsoft Excel format using a Bid Item format and
will be based on recent construction cost data available to NCE for projects of this type. Because of NCE’s involvement in the
design and construction of numerous similar projects in Southern California, as well as the City’s PMP, we are confident in our
ability to estimate the construction cost of the City’s project.
NCE assumes the City will provide boilerplate specifications suitable for the development of the roadway rehabilitation project
in Microsoft Word format. NCE will provide revisions to the Special Provisions related to the specifications for materials or
construction related to our bid items using Greenbook Specifications. NCE assumes the City will develop the “front-end”
specifications, including the overall bid book.
Deliverables: Electronic Deliverables - 65% draft plans (PDF), 65% draft Engineer’s Estimate of Probable Construction Cost (PDF),
and 65% Special Provisions (Microsoft Word)
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
10 10
Task 5.C and 6.C 90% PS&E
The 65% PS&E will be revised to incorporate design review comments received from the City. NCE will meet with the City to
review these comments, from which the Draft 90% PS&E will be prepared. NCE will further refine the design to a 90% level of
design at this stage. This will include fine-tuning of improvement plans for the pavement rehabilitation of streets and additional
detail development. The draft 90% PS&E will then be packaged and submitted similarly to the 65% PS&E, unless directed
otherwise.
Deliverables: Electronic Deliverables - 90% draft plans (PDF), 90% draft Engineer’s Estimate of Probable Construction Cost (PDF),
and 90% Special Provisions (MS Word); 65% Comment Resolution Matrix.
Task 5.D and 6.D 100% PS&E
The 90% PS&E will be prepared to incorporate final design review comments received from the City. NCE will meet with the
City to review these comments, from which the 100% PS&E will be prepared. The 100% PS&E will be finalized and sent to the
City as a digital check set prior to printing. The final package will be stamped and signed by a registered professional engineer
and packaged in a bid-ready format.
Deliverables: Electronic Deliverables - 100% plans (PDF), 100% Engineer’s Estimate of Probable Construction Cost (PDF), and
100% Special Provisions (MS Word).
Task 6 – Bid Stage and Construction Support – ADA Curb Ramps
Task 6.A Bidding Support
NCE will provide bidding and construction design support services to the City for the CDBG-funded ADA Curb Ramp Projects.
At a minimum, the bidding support services are anticipated to include attendance at the pre-Construction Conference,
responding to one round of written contractor’s inquiries from a question and answer (Q&A) phase, providing
recommendations for necessary changes to the bid documents due to unforeseen field conditions or clarifications from the
Q&A phase, and preparing bid document addenda.
Task 6.B. Construction Support
At a minimum, the construction support services are anticipated to include review of the Bidder’s Cost Proposal, attendance
at the Construction Kick-Off Meeting, responding to contractor requests for information (RFI’s), reviewing curb ramp related
material submittals in conformance with the Technical Specifications, and providing recommendations for necessary changes
to the bid documents due to unforeseen field conditions.
Task 7 – Bid Stage and Construction Support – Street Rehabilitation Projects
Tasks 7.A Bidding Support and 7.B. Construction Support
NCE will provide bidding and construction support services to the City. At a minimum, the bidding support services are
anticipated to include attendance at the pre-construction conference, responding to one round of written contractors’ inquiries
from a question and answer (Q&A) phase, providing revisions to the bid documents due to clarifications from the Q&A phase,
and preparing up to 1 Bid Document Addendum.
At a minimum, the construction support services are anticipated to include attendance at the construction kick-off meeting,
responding to contractor requests for information (assume up to three [3] Request for Information [RFI]), and providing
recommendations for necessary changes to the construction documents due to unforeseen field conditions. Construction
support will also include material submittal review for conformance with the NCE-developed Special Provisions.
For a typical roadway rehabilitation project, we anticipate the following material submittals to be reviewed by NCE:
• Maintenance Seal Submittal (Slurry, Cape Seal,
Microsurfacing, etc.)
• Tack Coat Submittal.
• Permanent and Temporary Paving Asphalt Concrete
Mix Design – ARHM / HMA.
• C&G, Cross Gutter, and Curb Ramp PCC Mix Design.
• ADA Detectable Warning Surface Submittal.
• Utility Frame and Cover or Manhole Adjustment PCC
Mix Design.
• Aggregate Base for Base Repairs.
• Permanent and Temporary Pavement Striping and
Markings Submittal.
The limited number of hours to provide bidding and construction support services in the Fee Estimate is an estimate only. The
actual cost will be dependent on the City and Contractor and will be billed on a time and materials basis.
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
11 11
Deliverables: As-needed bidding, Q&A responses, and bid document addenda (up to one [1]); As-needed RFI responses (up to
three [3]) and submittal review during construction.
Task 7.C As-Built Preparation
We assume the City will provide legible, consolidated as-built plan redlines for NCE to develop as a digital as-built of the project
Plans. NCE will submit an electronic copy of the as-builts to the City in PDF format. We assume a limited number of hours to
develop the as-builts. The actual cost will be dependent on the City and Contractor markups and will be billed on a time and
materials basis.
Deliverables: Digital as-built of the Plans (PDF) and CAD E-Transmittal
D. Experience and Qualifications
C.1 Firm Profile
NCE is a comprehensive civil engineering firm specializing in pavement engineering, landscape
architecture, environmental services, and construction support. Our focus is on developing and designing
pavement maintenance, resurfacing, and rehabilitation programs for public agencies across California
and the West Coast. With over three decades of experience, we have distinguished ourselves through
expertise in pavement technology, including pavement management, asset management, roadway
design, and research. Our team has successfully prepared pavement design and civil engineering projects,
incorporating Complete Street elements on numerous roadways throughout California.
Established in 1990, our firm has been in operation for over 35 years. Throughout this time, we have
conducted pavement condition surveys across 12 states, covering more than 220 cities and counties in
California, including Yorba Linda. We have surveyed over 110,000 miles of pavement, including alleys and
parking lots. Additionally, we have designed thousands of curb ramps as part of our roadway projects
statewide. Our services encompass pavement and asset management, pavement evaluation, testing,
design, civil engineering, as well as the research and development of innovative and sustainable
pavement technologies.
NCE has grown to employ over 130 professionals across seven offices in California, Nevada, and Arizona.
More than 85% of our revenue derives from local, state, and federal agencies, providing us with a deep
understanding of current regulations, policies, and best practices. This project will be managed by our
Orange County office in neighboring Anaheim, ensuring prompt responsiveness and the ability to
coordinate efficiently on-site or within the City's offices as needed.
Our engineers and technicians have extensive experience in collecting pavement distress data, conducting comprehensive
analyses, and developing PS&E for infrastructure projects. Our team is well-versed in state and local design standards, including
those specific to the City of Yorba Linda, as well as Caltrans pavement design standards and the "Greenbook" (American Public
Works Association Standard Specifications for Public Works Construction). Our core objective is to deliver high-quality results
while maintaining a reputation for timely service.
C.2 Sub-Consultants
Twining, Inc.
Twining, Inc., founded in 1898, is one of California’s most respected providers of geotechnical
engineering, materials testing, and inspection services. With more than 127 years of experience,
Twining has supported public agencies across the state with a focus on quality, responsiveness,
and technical excellence. Our team specializes in pavement evaluation, geotechnical analysis,
asphalt coring, laboratory testing, and construction quality control. We maintain a network of fully accredited laboratories and
mobile testing units throughout California, enabling efficient mobilization and reliable service delivery. Twining will provide
laboratory testing, coring, and geotechnical engineering services as a trusted subconsultant, applying our specialized expertise
to support the successful delivery of the project.
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
12 12
C.3 Demonstrated Experience Completing Similar Projects
NCE’s innovative thinking, a proactive management approach, and clear communication are central to every project, ensuring
that client objectives are met with precision and reliability. Demonstrated experience is provided below.
City of Diamond Bar
STREET REHABILITATION AND ADA CURB RAMP IMPROVEMENT
NCE was contracted by the City of Diamond Bar in Spring 2023 for a 3-year term to
design PS&E for annual street maintenance, rehabilitation, and CDBG curb ramp
projects across 3 of the City’s 7 maintenance zones. In the first cycle, NCE designed
$3.5 million in residential and collector roadway improvements and $6.7 million in
arterial rehabilitation, including pavement improvements, concrete repairs, bus stop
relocations, and 66 curb ramp upgrades. NCE also developed striping, signage plans to
expand and enhance the City’s bike network on arterials. In the second cycle, NCE
designed $1.5 million in residential work and $1.9 million in arterial improvements,
including coordination for a Caltrans encroachment permit and 17 curb ramp
upgrades. All 3 CDBG curb ramp projects, which included 23 curb ramp upgrades, were
successfully constructed.
Key Staff: Vivek Jha (Client Manager and Pavement Design Lead), Jim Bui (Project
Manager), Franz Haidinger (QA/QC Manager), James Signore (Pavement Design QA/QC Manager), Patricia Oelkers (Staff
Engineer), Mahmoud Samara (Pavement Engineer), Cindy Nguyen (Staff Engineer)
City of Redondo Beach
PAVEMENT EVALUATION/DESIGN AND STREET REHABILITATION PROJECTS
Since 2017, NCE has supported the City of Redondo Beach with its PMP, multi-year
work plan, and asset inventory. For the upcoming 3-year rehabilitation program (FY
2025/26–2027/28), NCE’s refinements are projected to save the City about $1.5
million. In 2024, NCE was contracted to design PS&E for the City’s FY 2022 and 2023
roadway maintenance programs, covering $2.6 million in improvements across 32
street segments. Services included pavement design, curb and gutter assessments, 132
new curb ramps, Safe Routes to School bulb-outs, intersection and sidewalk upgrades,
and coordination with bicycle and pedestrian master plan improvements. NCE also
updated bid documents to current standards and is finalizing the FY 2023 PS&E.
Key Staff: Vivek Jha (Client Manager), Jim Bui (Project Manager), Franz Haidinger (Civil
QA/QC Manager), James Signore (Pavement QA/QC Manager and Pavement Design
Lead), Patricia Oelkers (Staff Engineer), Mahmoud Samara (Pavement Engineer),
Joseph DeLeon (Engineering Technician)
City of San Marino
STREET REHABILITATION PROGRAMS AND PAVEMENT MANAGEMENT SYSTEM (PMS) UPDATE
NCE provided civil and pavement design for the City’s FY 2022 & 2023 Annual Street
Rehabilitation Program, covering nearly $6.1 million and 19 of the City’s most
deteriorated street sections. Innovative pavement solutions resulted in significant cost
savings, allowing more streets to be improved. The project included comprehensive
pavement surveys, base repair markings, coring, subgrade testing, and sustainable
treatment recommendations, with special attention to Macadam Road base areas.
Over 10,000 linear feet of curb and gutter repairs and more than 130 ADA curb ramps
were designed. For FY 2020 & 2021, NCE designed improvements for 66 street sections
totaling $5.8 million, including hundreds of curb and gutter repairs. Since 2015, NCE’s
integrated design services have helped the City raise its Pavement Condition Index
(PCI) from 65 to 72 in four years by implementing a focused, multi-year pavement
management plan.
Client
City of Diamond Bar PWD
Project Dates
2023 to Present
Client
City of Redondo Beach PWD
Project Dates
2017 to Present
Client
City of San Marino PWD
Project Dates
2018 to Present
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
13 13
Key Staff: Vivek Jha (PMP Project Manager and Pavement Engineer), Jim Bui (Project Manager), Franz Haidinger (Civil QA/QC
Manager), James Signore (Pavement QA/QC Manager and Flexible Pavement Design), Patricia Oelkers (Staff Engineer),
Mahmoud Samara (Pavement Engineer), Timothy Lee (Staff Engineer), Joseph DeLeon (Engineering Technician)
City of Alhambra
DESIGN SERVICES FOR FY 23-24 STREET REHABILITATION
The City of Alhambra selected NCE to design PS&E for the City's annual roadway
maintenance and rehabilitation projects. The project covered $3.1 million in
improvements across 20 streets segments, approximately 3.6 miles of residential
streets. NCE staff collected data on curb and gutter damage to address drainage
problems, pavement cross slopes, existing utility covers, and base repairs. The project
included pavement treatments ranging from shallow overlays with Asphalt Rubber
Hot-Mix to full-depth reconstructions, over 7,000 linear feet of curb and gutter repairs,
the replacement of 73 driveways, the design of 18 new ADA-compliant curb ramps and
the design of 44 retrofit ADA-compliant curb ramps.
Key Staff: Vivek Jha (Client Manager), Jim Bui (Project Manager), Franz Haidinger
(QA/QC Manager), Patricia Oelkers (Staff Engineer), Joseph DeLeon (Engineering
Technician)
City of Santa Maria
PA&ED Safe Route to School Corridor Improvements Project
The City secured ATP-grant funding, including a local match totaling $8.131 million
($0.5 million for PA&ED, $0.5 million for PS&E, $0.6 million for ROW, and $6.531 million
for construction) for the Active Santa Maria Safe Routes to School Project. The primary
purpose of this project is to deliver the PA&ED for 4.8 centerlines miles along 9 streets
adjacent to various local schools and community college. It also includes development
of a new 0.9 miles Class I trail connecting the community college to the local transit
center and eastern terminus of the City. Project elements include street resurfacing,
lane reconfiguration, street parking reconfiguration, pedestrian crosswalks, striping
and signage reconfiguration, class I bike trail, class II bike lanes, class III bike routes,
class IV bike lanes, painted bulb-outs, subsurface utility adjustments, storm drain inlet
reconstruction and relocation, landscaping, new rapid rectangular flashing beacons,
and concrete flatwork such as sidewalk addition and widening, ADA compliant curb
ramps, driveway aprons, and median improvements.
Key Staff: Vivek Jha (Client Manager), Jim Bui (Project Manager), Franz Haidinger (QA/QC Manager), Patricia Oelkers (Staff
Engineer), Joseph DeLeon (Engineering Technician)
Client
City of Alhambra PWD
Project Dates
2023 to Present
Client
City of Alhambra PWD
Project Dates
2023 to Present
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
14 14
C.4 Client References
NCE’s continued collaboration and repeat work with these agencies demonstrate our reliability, technical excellence, and
client-focused approach to pavement preservation and management. Feedback from agency staff consistently highlights NCE’s
responsiveness, accurate deliverables, and attention to project schedules and budgets.
Christian Malpica, Associate Engineer
City of Diamond Bar Public Works Department
21810 Copley Drive
Diamond Bar, CA 91765
p: (909) 839-7042
e: CMalpica@diamondbarca.gov
Project Name: Areas 3, 4, and 5 Street Rehabilitation and
ADA Curb Ramp Improvement
Lauren Sablan, City Engineer
City of Redondo Beach Public Works Department
415 Diamond Street
Redondo Beach, CA 90277
p: (310) 697-3150
e: lauren.sabian@redondo.org
Project Name: Pavement Evaluation/Design and Street
Rehabilitation Projects
Amber Shah, PE, Director of Public Works
City of San Marino Public Works Department
2200 Huntington Drive
San Marino, CA 91108
p: (626) 300-0787
e: AShah@cityofSanMarino.org
Project Name: Street Rehabilitation Programs and PMS
Update Services
Robert Bias, Public Works Engineering Technician
City of Alhambra Public Works Department
Engineering Services Division
111 South First Street
Alhambra, CA 91801
p: (626) 570-5062
e: rbias@alhambraca.gov
Project Name: Design Services for FY 23-24 Street
Rehabilitation
Rustom Tavitian, MS, PE, Civil Engineer II
City of Glendale Public Works Department
633 E Broadway Room 205
Glendale, CA 91206
p: (818) 937-8326
e: rtavitian@glendaleca.gov
Project Name: Maintenance District 6 Phase II
Rehabilitation
Mark Mueller, PE, Principal Engineer
City of Santa Maria
110 South Pine Street, Suite 221
Santa Maria, CA 93458
p: (805) 925-0951 x1667
e: mmueller@cityofsantamaria.org
Project Name: PA&ED Safe Route to School Corridor
Improvements Project
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
15 15
D. Organizational Chart
NCE’s team provides a main point of contact through our Project Manager, Jim Bui, PE,
whose primary responsibility is to communicate the project’s purpose, deliverables,
and progress. In addition, Jim will facilitate frequent interactions with task leads to
discuss progress, questions, and note challenges. NCE’s Principal-in-Charge, Vivek Jha,
MS, PE, will support Jim and the City throughout the project. During the project
execution, NCE’s project manager will be responsible for delivering the scope of work,
facilitating regular team meetings with agendas and documented summaries, allowing
both NCE team members and our clients to follow the discussion, track key decisions,
and identify action items.
Jim will be responsible for monitoring the project's progress, ensuring that the scope of work is implemented, tracking project
financials, monitoring overall and interim schedules, and making sure that necessary resources are assigned and committed to
the project. He will oversee invoices to be consistent with the project contracts and deliverables, ensuring that subconsultant
agreements are consistent with the master contract (flow-downs).
The illustration below shows the composition of our team, and brief resumes are provided in Appendix A.
Jim has successfully managed
numerous projects throughout
his career, collaborating with
subconsultants. His experience
equips him to effectively handle
projects that require adjustments
in response to unexpected
challenges.
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
16 16
E. Estimated Labor Hours
Project #
Project
Manager
Principal
Eng
QC/QA
Manager
Project
Eng I
Staff
Eng II
Staff
Eng I
Senior
Field
Tech
Tech
Editor
Sub-
total
Labor
Hours
1 23 2 7 0 58 72 0 6 168
2 66 10 26 76 158 272 8 19 635
3 23 2 7 0 58 72 0 6 168
4 68 10 26 78 156 316 8 19 681
5 66 10 28 60 131 209 8 19 531
6 23 2 7 0 58 72 0 6 168
7 68 10 26 78 156 316 8 19 681
8 66 10 26 60 131 209 8 19 529
9 60 8 20 46 93 140 8 19 394
10 66 10 26 64 131 213 8 19 537
Grand
Total 529 74 199
462
1,130
1,891
56
151
4,492
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
17 17
F. Resumes and Qualifications of Proposed Personnel
See Appendix A for project team member resumes.
G. Conflict of Interest
The team does not have any known individuals with a conflict of interest proposing on this RFP.
H. Terms and Conditions
As stated in our cover letter, we acknowledge receipt of the RFP documents and all three addendums. Our scope and approach
is developed based on our understanding of the RFP and addendum requirements. Our proposal is valid for one hundred and
twenty (120) days from the date of receipt by the City and is signed by a Principal of the firm who is authorized to bind the
organization.
I. Sample Schedule
NCE has prepared a sample schedule showing completion of Projects 1 and 2 within the first year as required per Addendum
3. It also shows possible preliminary schedules for the remaining Projects 3-5 included in the Base Proposal. We are also able
to start projects 3-5 sooner depending on available funding by the City.
# Task Name Duration Start Finish Predecessors
1 City Project No. SI261 863 days Tue 11/18/25 Fri 4/13/29
2 Notice to Proceed 1 day Tue 11/18/25 Tue
11/18/25
3 1. Project Management & Meetings 477 days Wed
11/19/25
Wed
10/6/27
4 Project Kick-Off Meeting - Project 1 1 day Wed
11/19/25
Wed
11/19/25 2
5 Project Kick-Off Meeting - Project 2 1 day Wed
11/19/25
Wed
11/19/25 2
6 Project Kick-Off Meeting - Project 3 1 day Wed 10/7/26 Wed
10/7/26
7 Project Kick-Off Meeting - Project 4 1 day Wed 10/7/26 Wed
10/7/26
8 Project Kick-Off Meeting - Project 5 1 day Wed 10/6/27 Wed
10/6/27
9 2. Pavement Design and Program Review 496 days Thu 11/20/25 Wed
11/3/27
10 Pavement Surveys and Design - Project 2 2 wks Thu 11/20/25 Fri 12/5/25 5
11 Pavement Surveys and Design - Project 4 2 wks Thu 10/8/26 Wed
10/21/26 7
12 Pavement Surveys and Design - Project 5 2 wks Thu 10/7/27 Wed
10/20/27 8
13
Pavement Coring, Laboratory Testing and
Pavement Design Report - Project 2 3 wks Mon 12/1/25 Fri 12/19/25 5FS+1 wk
14
Pavement Coring, Laboratory Testing and
Pavement Design Report - Project 4 3 wks Thu 10/15/26 Wed
11/4/26 7FS+1 wk
15
Pavement Coring, Laboratory Testing and
Pavement Design Report - Project 5 3 wks Thu 10/14/27 Wed
11/3/27 8FS+1 wk
16 3. Utility Coordination 641 days Mon 12/8/25 Tue 6/13/28
17 Prepare Utility "A" Letters - Project 2 1 mon Mon 12/8/25 Wed 1/7/26 10
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
18 18
# Task Name Duration Start Finish Predecessors
18 Track Utility "A" Letter Responses - Project 2 2 mons Thu 1/8/26 Thu 3/5/26 17
19 Prepare Utility "B" Letters - Project 2 1 mon Tue 5/16/28 Tue 6/13/28 18,40
20 Prepare Utility "A" Letters - Project 4 1 mon Thu 10/22/26 Wed
11/18/26 11
21 Track Utility "A" Letter Responses - Project 4 2 mons Thu 11/19/26 Tue 1/19/27 20
22 Prepare Utility "B" Letters - Project 4 1 mon Wed 1/20/27 Tue 2/16/27 21,51
23 Prepare Utility "A" Letters - Project 5 1 mon Thu 10/7/27 Wed
11/3/27 8
24 Track Utility "A" Letter Responses - Project 5 2 mons Thu 11/4/27 Fri 12/31/27 23
25 Prepare Utility "B" Letters - Project 5 1 mon Tue 5/2/28 Tue 5/30/28 24,52
26
4. Plans, Specifications & Estimates - ADA
Curb Ramp Projects 292 days Thu 11/20/25 Tue 1/19/27
27
5. Plans, Specifications & Estimates -
Residential and Collector Rehabilitation 449 days Thu 10/22/26 Wed
7/26/28
28 Design Data Gathering - Project 4 3 wks Thu 10/22/26 Wed
11/11/26 11
29 60% Draft PS&E - Project 4 4 mons Thu 11/12/26 Tue 3/9/27 36
30 City Review - 60% Draft PS&E - Project 4 4 wks Mon 1/3/28 Fri 1/28/28 37,24
31 90% Draft PS&E - Project 4 3 mons Mon 1/31/28 Mon
4/24/28 38
32 City Review - 90% Draft PS&E - Project 4 3 wks Tue 4/25/28 Mon
5/15/28 39
33 Final PS&E - Project 4 2.5
mons Tue 5/16/28 Wed
7/26/28 40
34
6. Plans, Specifications & Estimates - Arterial
Rehabilitation 651 days Mon 12/8/25 Tue 6/27/28
35 Design Data Gathering - Project 2 2 wks Mon 12/8/25 Fri 12/19/25 10
36 Design Data Gathering - Project 5 2 wks Thu 10/21/27 Wed
11/3/27 12
37 60% Draft PS&E - Project 2 3 mons Mon
12/22/25 Thu 3/19/26 43
38 60% Draft PS&E - Project 5 3 mons Thu 11/4/27 Fri 1/28/28 44
39 City Review - 60% Draft PS&E - Project 2 3 wks Fri 3/20/26 Thu 4/9/26 45,18
40 City Review - 60% Draft PS&E - Project 5 3 wks Mon 1/31/28 Fri 2/18/28 24,46
41 90% Draft PS&E - Project 2 2 mons Fri 4/10/26 Fri 6/5/26 47
42 90% Draft PS&E - Project 5 2 mons Tue 2/22/28 Mon
4/17/28 48
43 City Review - 90% Draft PS&E - Project 2 2 wks Mon 6/8/26 Fri 6/19/26 49
44 City Review - 90% Draft PS&E - Project 5 2 wks Tue 4/18/28 Mon 5/1/28 50
45 Final PS&E - Project 2 2 mons Mon 6/22/26 Fri 8/14/26 51
46 Final PS&E - Project 5 2 mons Tue 5/2/28 Tue 6/27/28 52
47
7. Bidding and Construction Support - ADA
Curb Ramp Projects 327 days Wed
12/31/25 Tue 4/13/27
48 City Bids and Awards Project - Project 1 1 mon Wed
12/31/25
Wed
1/28/26 33
49 City Bids and Awards Project - Project 3 1 mon Wed 1/20/27 Tue 2/16/27 34
50 Construction - Project 1 2 mons Thu 1/29/26 Thu 3/26/26 56
51 Construction - Project 3 2 mons Wed 2/17/27 Tue 4/13/27 57
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
19 19
# Task Name Duration Start Finish Predecessors
52
8. Bidding and Construction Support - Street
Rehabilitation Project 676 days Mon 8/17/26 Fri 4/13/29
53 City Bids and Awards Project - Project 2 3 mons Mon 8/17/26 Mon
11/9/26 53
54 City Bids and Awards Project - Project 4 3 mons Thu 7/27/28 Thu
10/19/28 41
55 City Bids and Awards Project - Project 5 3 mons Wed 6/28/28 Thu 9/21/28 54
56 Construction - Project 2 6 mons Tue 11/10/26 Fri 4/30/27 61
57 Construction - Project 4 6 mons Fri 10/20/28 Fri 4/13/29 62
58 Construction - Project 5 6 mons Fri 9/22/28 Fri 3/16/29 63
J. Cost Proposal
The cost proposal is attached as a separate file.
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
A
Appendix A
Project Team Resumes
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
A-1
Jim Bui, PE
Project Manager
Jim has 12 years of extensive transportation experience and serves as the Project Manager
and/or Technical Lead on a variety of Public Works and Capital Improvement Projects that
focus on transportation design for NCE’s Southern California region. He has expertise with
civil and pavement design, Complete Streets, ADA compliance, bicycle and pedestrian safety
improvement projects, and trails on municipal transportation infrastructure. His experience
includes managing numerous citywide paving projects in California, many involving ADA
compliance for curb ramps, pavement regrading, pavement recycling, as well as intersection
design. Jim has led complex civil and pavement design-related tasks and has worked closely
with NCE personnel and specialty subconsultants on these projects.
Representative Projects
Street Rehabilitation and ADA Curb Ramp Improvement
City of Diamond Bar, CA
Project Manager. Jim used his extensive experience with annual roadway rehabilitation
projects to manage the implementation of the PMP work plan into discrete projects and
provide the appropriate pavement treatments, including slurry seals, cape seals, hot mix
asphalt, and asphalt rubber hot mix paving for numerous roadway segments. He also
managed the design of various standalone curb ramp projects, focusing on improvements
to local schools and parks. The City of Diamond Bar has approximately 145 centerline miles
divided into 7 maintenance zones. Beginning in Spring 2023, NCE was contracted for 3 years
to provide the design of PS&E for the City’s annual arterial, collector, and residential
maintenance and rehabilitation programs, as well as standalone annual CDBG curb ramp
improvement projects for up to 3 maintenance zones. As part of the first cycle, NCE designed
$3.5 million of slurry seals, cape seals, and ARHM paving for 104 residential and collector
roadway segments. In addition, NCE also designed over $6.7 million or 4 miles of 4-lane
divided arterial pavement rehabilitation, concrete repairs, bus stop relocations, and curb
ramp improvements. NCE also provided striping and signage plans on the arterials to
implement the City’s bicycle master plan, adding new Class 2 bike lanes with buffers where
no bicycle facilities previously existed and upgrading miles of Class 2 bike lanes to include
buffers and green conflict striping. For the second cycle, NCE designed over $1.5 million for
residential rehabilitation and maintenance and nearly $1.9 million for 1 mile of divided and
undivided arterials, including coordination with Caltrans to execute an encroachment
permit for work within their right of way. Lastly, NCE prepared all 3 CDBG curb ramp PS&E
projects.
Pavement Evaluation/Design and Street Rehabilitation Projects
City of Redondo Beach, CA
Project Manager. Jim managed the integrated design of numerous roadway rehabilitation
streets improvements including the development of bicycle and pedestrian enhancements,
as well as landscaping and irrigation design. NCE has partnered with the City of Redondo
Beach since 2017 with their PMP, multi-year work plan, and asset inventory. As part of the
recent multi-year work plan, NCE pavement engineers refined the PMP recommendations
for the upcoming 3-year rehabilitation program (FY 2025/26–2027/28) to save the City
approximately $1.5 million in overall project costs. Beginning in 2024, NCE was also
contracted by the City to provide the PS&E design for the City’s FY 2022 and FY 2023 annual
roadway maintenance and rehabilitation catch-up programs. As part of these projects, NCE
prepared the PS&E package for approximately $2.6 million, covering 32 street segments
across 5.9 centerline miles. NCE staff marked out base repair locations, took pavement core
samples, and carried out laboratory testing to develop project-specific pavement design
Education
BS, Civil Engineering,
University of California, Irvine,
2013
Registration
Professional Engineer – Civil,
CA #86467
Affiliations
American Society of Civil
Engineers
American Public Works
Association
Joined NCE
2013
Years of Experience
12 years
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
A-2
recommendations. They also collected curb and gutter
damage that will need to be addressed during construction.
The design also includes the development of new curb
ramps, bulb-outs as part of a Safe Routes to School initiative,
intersection reconstruction, electrical work, sidewalk plaza
regrading, and coordination with the City’s ongoing bicycle
and pedestrian master plan improvements. NCE also helped
update the City’s bid documents to the newer 2021
Greenbook Specifications and 2023 Caltrans Specifications.
NCE is currently finalizing the 100% PS&E for the FY 2023
program.
Street Rehabilitation Programs and PMS Update Services
City of San Marino, CA
Project Manager. Jim managed several projects with the
City, including pavement management, standalone CDBG
curb ramp projects, and various cycles of annual roadway
pavement rehabilitation, increasing the City’s PCI and
improving accessibility across the City. FY 2022 & FY 2023
Annual Street Rehabilitation Program: NCE provided civil and
pavement design for the City of San Marino’s FY 2022 & FY
2023 Annual Street Rehabilitation Program, covering nearly
$6.1 million and 19 of the City’s most deteriorated street
sections. Innovative pavement solutions resulted in
significant cost savings, allowing more streets to be
improved. The project included comprehensive pavement
surveys, base repair markings, coring, subgrade testing, and
sustainable treatment recommendations, with special
attention to Macadam Road base areas. Over 10,000 linear
feet of curb and gutter repairs and more than 130 ADA curb
ramps were designed. Construction plans featured updated
2021 Greenbook technical specifications and detailed cost
estimates. FY 2020 & FY 2021 Annual Street Rehabilitation
Program: NCE prepared the civil and pavement design plans,
specifications, and engineer’s estimate of probable
construction cost (PS&E) for the City’s annual road
rehabilitation program totaling nearly $5.8 million and about
66 street sections. This also included the identification of
hundreds of curbs and gutter repairs. A comprehensive
pavement design was conducted, including pavement
conditions surveys, base repair markings, pavement coring,
and subgrade laboratory testing. Since 2015, NCE has
assisted the City with PMS and pavement evaluation and
design services. In 2020, the City selected NCE to provide
integrated design services, including PMS, pavement
evaluation and design, and preparation of PS&E packages.
Through its integrated design approach, NCE has helped the
City improve its network PCI by 7 points, from a PCI of 65 in
2018 to a PCI of 72 in 2022, over a period of 4 years. This was
achieved by creating a focused, multi-year plan that met the
City's needs and optimized its capital improvement program
budget.
Design Services for FY 23-24 Street Rehabilitation
City of Alhambra, CA
Project Manager. Jim managed the development of cost-
saving pavement alternatives, including surface
reconstruction and deep mill and overlays for various streets
in poor and failing condition. The City of Alhambra selected
NCE to design PS&E for the City's annual roadway
maintenance and rehabilitation projects. The project
covered $3.1 million in improvements across 20 streets
segments, approximately 3.6 miles of residential streets. NCE
staff collected data on curb and gutter damage to address
drainage problems, pavement cross slopes, existing utility
covers, and base repairs. The project included pavement
treatments ranging from shallow overlays with Asphalt
Rubber Hot-Mix to full-depth reconstructions, over 7,000
linear feet of curb and gutter repairs, the replacement of 73
driveways, the design of 18 new ADA-compliant curb ramps,
and the design of 44 retrofit ADA-compliant curb ramps.
Maintenance District 6 Phase II Rehabilitation
City of Glendale, CA
Project Manager. Jim managed the street rehabilitation,
ADA curb ramp upgrades, and comprehensive regrading for
various streets, including the implementation of innovative
pavement maintenance alternatives to bridge an anticipated
shortfall in construction funding for various streets. NCE was
selected by the City of Glendale to provide the design of
PS&E for the Maintenance District 6 Phase II Rehabilitation
Project. The project involves rehabilitating 2.8 miles of
residential streets in a historic neighborhood with
treatments ranging from ARHM overlays, surface
reconstruction, and innovative multi-layered asphalt-rubber
aggregate membrane (ARAM) interlayers to reduce required
pavement thickness. As part of this project, NCE evaluated
the existing pavement to determine feasible rehabilitation
alternatives, including whether the existing macadam
underneath the asphalt pavement could be preserved or
removed, marked pavement base repairs, and design
numerous curb ramps and driveway aprons. We also
designed new curb and gutter systems along the entirety of
every street due to aging concrete infrastructure and
insufficient drainage capacity, totaling over $3.5 million in
curb and gutter construction alone. Due to extensive
roadway re-grading for every street, NCE had to analyze
vertical clearance at 274 driveway aprons, including the
adjustment of driveways and sidewalk to conform to the
grading. The total project cost is nearly $8.9 million.
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
A-3
Vivek Jha, MS, PE
Principal-in-Charge
Vivek is an experienced Client/Project Manager and serves as a Principal and the Southern
California Operations Manager at NCE. He is a Professional Engineer with over 15 years of
extensive experience in the pavement field, with expertise in pavement design and
evaluation, rehabilitation and maintenance, as well as overall asset and pavement
management. Vivek is skilled in overseeing the complete project lifecycle. This includes
schedules, budgets, tracking and documenting variances, preparing technical reports,
ensuring QA/QC from all aspects, as well as leading and facilitating stakeholder meetings.
He has a wealth of experience in using non-destructive technology (such as automated
distress data, GPR FWD for pavement evaluation and design. He is also well-versed with
StreetSaver® and PAVER™, in addition to a range of industry standards and tools, including
the American Association of State Highway and Transportation Officials 1993 guidelines, the
Mechanistic-Empirical Pavement Design Guide, and PCI assessments.
Representative Projects
Pavement Management Program Updates
City of Yorba Linda, CA
Client/Project Manager. Vivek served as the Project Manager for the last two PMP updates
for the City and is currently working on finalizing the multi-year plan for Zones 7 and 1. NCE
has served the pavement management needs of the City of Yorba Linda through three
consecutive cycles since 2020. In 2020, NCE transitioned the City’s PAVER™ database to the
Metropolitan Transportation Commission (MTC) StreetSaver® platform and, as part of the
2020 and 2022 PMP updates, completed tasks such as converting databases, verifying street
inventory, field-verifying pavement inventory, conducting distress/condition surveys using
ASTM D6433 on 215 centerline miles, calculating PCI for each street section, performing
budgetary analyses with three funding scenarios, developing seven-year and two-year
maintenance and repair work plans, and preparing the final report for Orange County
Transportation Authority (OCTA) submittal. NCE prepared the City’s PMP Update in
2023/24, with the final report submitted to OCTA in May 2024.
Street Rehabilitation and ADA Curb Ramp Improvement
City of Diamond Bar, CA
Client Manager and Pavement Design Lead. Vivek played a vital role in the City’s 2022
update of their PMP, overseeing a network comprising 145 centerline miles and 1,014
pavement segments. He was responsible for analyzing and ensuring the quality of pavement
distress data, updating maintenance and rehabilitation decision trees, revising treatment
unit costs, and developing budget scenarios and executive summary reports. Since 2014,
our work with the City of Diamond Bar has exemplified how pavement management
partnerships can evolve into full-service infrastructure delivery. Beginning with traditional
PMP updates across their 145-mile network, we successfully guided their transition from
PAVER™ to StreetSaver® while completing comprehensive condition assessments. Our
proven planning capabilities naturally led to our current three-year PS&E contract, where
we're now delivering $10.2M in actual roadway improvements—from residential
maintenance to arterial rehabilitation—demonstrating the complete project lifecycle
expertise that clients value most.
Education
MS, Civil Engineering, Rowan
University, 2009
BS, Civil Engineering, Sardar
Patel College of Engineering,
Mumbai, India, 2007
Registrations
Professional Engineer – Civil,
MD #52713
Professional Engineer – Civil,
NJ #24GE05734600
Affiliations
Advisory Board Member,
CREATEs
ACRP Panel Member
Automated Pavement
Condition Survey Practices at
Airports
Joined NCE
2022
Years of Experience
15 years
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
A-4
Pavement Evaluation/Design and Street Rehabilitation
Projects
City of Redondo Beach, CA
Client Manager. NCE has partnered with the City of Redondo
Beach since 2017 with their PMP, multi-year work plan, and
asset inventory. As part of the recent multi-year work plan,
NCE pavement engineers refined the PMP recommendations
for the upcoming 3-year rehabilitation program (FY
2025/26–2027/28) to save the City approximately $1.5
million in overall project costs. Beginning in 2024, NCE was
also contracted by the City to provide the PS&E design for
the City’s FY 2022 and FY 2023 annual roadway maintenance
and rehabilitation catch-up programs. As part of these
projects, NCE prepared the PS&E package for approximately
$2.6 million, covering 32 street segments across 5.9
centerline miles. NCE staff marked out base repair locations,
took pavement core samples, and carried out laboratory
testing to develop project-specific pavement design
recommendations. They also collected curb and gutter
damage that will need to be addressed during construction.
The design also includes the development of new curb
ramps, bulb-outs as part of a Safe Routes to School initiative,
intersection reconstruction, electrical work, sidewalk plaza
regrading, and coordination with the City’s ongoing bicycle
and pedestrian master plan improvements. NCE also helped
update the City’s bid documents to the newer 2021
Greenbook Specifications and 2023 Caltrans Specifications.
NCE is currently finalizing the 100% PS&E for the FY 2023
program.
Street Rehabilitation Programs and PMS Update Services
City of San Marino, CA
PMS Project Manager and Pavement Engineer. Vivek is
serving as Project Manager responsible for assisting the City
in updating their PMS update, which will be used by the City
to select the streets for the next annual rehabilitation
project. FY 2022 & FY 2023 Annual Street Rehabilitation
Program: NCE provided civil and pavement design for the
City of San Marino’s FY 2022 & FY 2023 Annual Street
Rehabilitation Program, covering nearly $6.1 million and 19
of the City’s most deteriorated street sections. Innovative
pavement solutions resulted in significant cost savings,
allowing more streets to be improved. The project included
comprehensive pavement surveys, base repair markings,
coring, subgrade testing, and sustainable treatment
recommendations, with special attention to Macadam Road
base areas. Over 10,000 linear feet of curb and gutter repairs
and more than 130 ADA curb ramps were designed.
Construction plans featured updated 2021 Greenbook
technical specifications and detailed cost estimates. FY 2020
& FY 2021 Annual Street Rehabilitation Program: NCE
prepared the civil and pavement design plans, specifications,
and engineer’s estimate of probable construction cost
(PS&E) for the City’s annual road rehabilitation program
totaling nearly $5.8 million and about 66 street sections. This
also included the identification of hundreds of curbs and
gutter repairs. A comprehensive pavement design was
conducted, including pavement conditions surveys, base
repair markings, pavement coring, and subgrade laboratory
testing. Since 2015, NCE has assisted the City with PMS and
pavement evaluation and design services. In 2020, the City
selected NCE to provide integrated design services, including
PMS, pavement evaluation and design, and preparation of
PS&E packages. Through its integrated design approach, NCE
has helped the City improve its network PCI by 7 points, from
a PCI of 65 in 2018 to a PCI of 72 in 2022, over a period of 4
years. This was achieved by creating a focused, multi-year
plan that met the City's needs and optimized its capital
improvement program budget.
Design Services for FY 23-24 Street Rehabilitation
City of Alhambra, CA
Client Manager.
The City of Alhambra selected NCE to design PS&E for the
City's annual roadway maintenance and rehabilitation
projects. The project covered $3.1 million in improvements
across 20 streets segments, approximately 3.6 miles of
residential streets. NCE staff collected data on curb and
gutter damage to address drainage problems, pavement
cross slopes, existing utility covers, and base repairs. The
project included pavement treatments ranging from shallow
overlays with Asphalt Rubber Hot-Mix to full-depth
reconstructions, over 7,000 linear feet of curb and gutter
repairs, the replacement of 73 driveways, the design of 18
new ADA-compliant curb ramps, and the design of 44 retrofit
ADA-compliant curb ramps.
Project Approval & Environmental Document (PA&ED)
City of Santa Maria, CA
Client Manager. The City has secured ATP-grant (State-only)
funding, including a local match totaling $8.131 million ($0.5
million for PA&ED, $0.5 million for PS&E, $0.6 million for
ROW, and $6.531 million for construction) for the Active
Santa Maria Safe Routes to School Project. The City aims to
enhance safety, connectivity, and mobility for active
transportation users by providing new or upgraded facilities
such as bike lanes, sidewalks, crosswalks, curb ramps, traffic
beacons, shared use path, signage, and striping. The
improvements will also directly benefit five local Santa Maria
elementary and middle schools and Allan Hancock College.
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
A-5
Franz Haidinger, PE
QA/QC Reviewer
Franz is a Principal and Chief Engineer at NCE responsible for overseeing, managing, and
developing designs and PS&Es for roadway improvement projects, in addition to
implementing sustainable technologies. He has expertise in pavement and roadway design,
pavement rehabilitation, Complete Streets, sustainable pavement technologies, and low-
impact development features. Franz also provides QA/QC, develops engineering standards
for NCE, and oversees the firm’s quality assurance program. He critically reviews projects
for constructability and focuses on making construction documents practical and clear for
bidding.
Representative Projects
Street Rehabilitation and ADA Curb Ramp Improvement
City of Diamond Bar, CA
QA/QC Manager. Franz provided design guidance and quality control review. The City of
Diamond Bar has approximately 145 centerline miles divided into 7 maintenance zones.
Beginning in Spring 2023, NCE was contracted for 3 years to provide the design of PS&E for
the City’s annual arterial, collector, and residential maintenance and rehabilitation
programs, as well as standalone annual CDBG curb ramp improvement projects for up to 3
maintenance zones. As part of the first cycle, NCE designed $3.5 million of slurry seals, cape
seals, and ARHM paving for 104 residential and collector roadway segments. In addition,
NCE also designed over $6.7 million or 4 miles of 4-lane divided arterial pavement
rehabilitation, concrete repairs, bus stop relocations, and curb ramp improvements. NCE
also provided striping and signage plans on the arterials to implement the City’s bicycle
master plan, adding new Class 2 bike lanes with buffers where no bicycle facilities previously
existed and upgrading miles of Class 2 bike lanes to include buffers and green conflict
striping. For the second cycle, NCE designed over $1.5 million for residential rehabilitation
and maintenance and nearly $1.9 million for 1 mile of divided and undivided arterials,
including coordination with Caltrans to execute an encroachment permit for work within
their right of way. Lastly, NCE prepared CDBG curb ramp PS&E projects.
Pavement Evaluation/Design and Street Rehabilitation Projects
City of Redondo Beach, CA
Civil QA/QC Manager. Franz provided design guidance and quality assurance/quality control
review. NCE has partnered with the City of Redondo Beach since 2017 with their PMP, multi-
year work plan, and asset inventory. As part of the recent multi-year work plan, NCE
pavement engineers refined the PMP recommendations for the upcoming 3-year
rehabilitation program (FY 2025/26–2027/28) to save the City approximately $1.5 million in
overall project costs. Beginning in 2024, NCE was also contracted by the City to provide the
PS&E design for the City’s FY 2022 and FY 2023 annual roadway maintenance and
rehabilitation catch-up programs. As part of these projects, NCE prepared the PS&E package
for approximately $2.6 million, covering 32 street segments across 5.9 centerline miles. NCE
staff marked out base repair locations, took pavement core samples, and carried out
laboratory testing to develop project-specific pavement design recommendations. They also
collected curb and gutter damage that will need to be addressed during construction. The
design also includes the development of new curb ramps, bulb-outs as part of a Safe Routes
to School initiative, intersection reconstruction, electrical work, sidewalk plaza regrading,
and coordination with the City’s ongoing bicycle and pedestrian master plan improvements.
NCE also helped update the City’s bid documents to the newer 2021 Greenbook
Specifications and 2023 Caltrans Specifications. NCE is currently finalizing the 100% PS&E
for the FY 2023 program.
Education
Diplom-Ingenieur (DI), Civil
Engineering, University of
Natural Resources and Life
Sciences, Vienna, Austria
(Equivalent of an MS, Civil
Engineering), 1997
Registrations/Certification
Professional Engineer – Civil,
CA #64725
Professional Engineer – Civil,
NV #19430
Troxler Nuclear Testing
Equipment Certification
#079039
Affiliations
American Society of Civil
Engineers
American Public Works
Association
Joined NCE
2004
Years of Experience
28 years
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
A-6
Street Rehabilitation Programs and PMS Update Services
City of San Marino, CA
Civil QA/QC Manager. Franz provided design guidance and
quality assurance/quality control review. FY 2022 & FY 2023
Annual Street Rehabilitation Program: NCE provided civil and
pavement design for the City of San Marino’s FY 2022 & FY
2023 Annual Street Rehabilitation Program, covering nearly
$6.1 million and 19 of the City’s most deteriorated street
sections. Innovative pavement solutions resulted in
significant cost savings, allowing more streets to be
improved. The project included comprehensive pavement
surveys, base repair markings, coring, subgrade testing, and
sustainable treatment recommendations, with special
attention to Macadam Road base areas. Over 10,000 linear
feet of curb and gutter repairs and more than 130 ADA curb
ramps were designed. Construction plans featured updated
2021 Greenbook technical specifications and detailed cost
estimates. FY 2020 & FY 2021 Annual Street Rehabilitation
Program: NCE prepared the civil and pavement design plans,
specifications, and engineer’s estimate of probable
construction cost (PS&E) for the City’s annual road
rehabilitation program totaling nearly $5.8 million and about
66 street sections. This also included the identification of
hundreds of curbs and gutter repairs. A comprehensive
pavement design was conducted, including pavement
conditions surveys, base repair markings, pavement coring,
and subgrade laboratory testing. Since 2015, NCE has
assisted the City with PMS and pavement evaluation and
design services. In 2020, the City selected NCE to provide
integrated design services, including PMS, pavement
evaluation and design, and preparation of PS&E packages.
Through its integrated design approach, NCE has helped the
City improve its network PCI by 7 points, from a PCI of 65 in
2018 to a PCI of 72 in 2022, over a period of 4 years. This was
achieved by creating a focused, multi-year plan that met the
City's needs and optimized its capital improvement program
budget.
Design Services for FY 23-24 Street Rehabilitation
City of Alhambra, CA
QA/QC Manager. Franz provided design guidance and
quality assurance/quality control review.
The City of Alhambra selected NCE to design PS&E for the
City's annual roadway maintenance and rehabilitation
projects. The project covered $3.1 million in improvements
across 20 streets segments, approximately 3.6 miles of
residential streets. NCE staff collected data on curb and
gutter damage to address drainage problems, pavement
cross slopes, existing utility covers, and base repairs. The
project included pavement treatments ranging from shallow
overlays with Asphalt Rubber Hot-Mix to full-depth
reconstructions, over 7,000 linear feet of curb and gutter
repairs, the replacement of 73 driveways, the design of 18
new ADA-compliant curb ramps and the design of 44 retrofit
ADA-compliant curb ramps.
Maintenance District 6 Phase II Rehabilitation
City of Glendale, CA
QA/QC Manager. Franz provided design guidance and
quality assurance/quality control review. NCE was selected
by the City of Glendale to provide the design of PS&E for the
Maintenance District 6 Phase II Rehabilitation Project. The
project involves rehabilitating 2.8 miles of residential streets
in a historic neighborhood with treatments ranging from
ARHM overlays, surface reconstruction, and innovative
multi-layered ARAM interlayers to reduce required
pavement thickness. As part of this project, NCE evaluated
the existing pavement to determine feasible rehabilitation
alternatives, including whether the existing macadam
underneath the asphalt pavement could be preserved or
removed, marked pavement base repairs, and designed
numerous curb ramps and driveway aprons. We also
designed new curb and gutter systems along the entirety of
every street due to aging concrete infrastructure and
insufficient drainage capacity, totaling over $3.5 million in
curb and gutter construction alone. Due to extensive
roadway re-grading for every street, NCE had to analyze
vertical clearance at 274 driveway aprons, including the
adjustment of driveways and sidewalks to conform to the
grading. The total project cost is nearly $8.9 million.
Valley View Avenue Pavement Rehabilitation from
Imperial Highway to Rosecrans Avenue Project
City of La Mirada, CA
QA/QC Manager. Franz provided design guidance and
quality assurance/quality control review. NCE provided
pavement rehabilitation services for the City of La Mirada’s
Valley View Avenue from Imperial Highway to Rosecrans
Avenue. This is a highly traveled commercial corridor nearly
a mile long with heavily deteriorated pavement that requires
significant rehabilitation or reconstruction. NCE determined
appropriate treatments, addressing ADA compliance, and
providing PS&E along with design support during
construction. The City is in the middle of a multi-million-
dollar infrastructure improvement program made possible
through City general funds, state and federal grants, and
passage of Measure I by City residents, which provided
additional sales tax revenue of approximately $4 million per
year for five years.
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
A-7
Scott De Leon, PE
Cost Estimation QC Reviewer
Scott De Leon, PE, is a licensed California Civil Engineer with a background in transportation,
and civil and structural engineering projects. His experience includes commercial and
residential development, including rezoning and specific plans of development, California
Environmental Quality Act compliance, structural calculations, development of construction
plans, and construction oversight; public information and community outreach; and serving
as Operations Section Chief in Lake County in nine declared emergencies in the Emergency
Operations Center.
Representative Projects
CR 104 Central Landfill Traffic Flow and Side Entrance
Yolo County, CA
Senior Engineer. NCE is supporting the County in both the planning and design of
changes to the traffic circulation patterns at the Central Landfill facility located at
junction of County Road (CR) 28H and Road 104. NCE is currently providing the planning
phase with the objective of reviewing, developing, and understanding alternative
opportunities and constraints for the PS&E phase, with a deliverable to include a
planning level map illustrating the proposed changes to the entrance facility. The
planning level map will be used to support future civil design improvements. Scott is
collaborating with Landfill Management and Operations staff to understand their
specific needs in handling the current and future demands created by landfill patrons.
Parking Lot Improvements
County of Sacramento International Airport, CA
Senior Engineer. NCE is providing scoping and design development for three parking
lots at Sacramento International Airport in Sacramento County, California. The three
parking lots are referred to as the East Vault, Economy Lot Expansion and TNC/Cell Lot.
Additional parking areas are a critical part of meeting customer needs as the airport
continues to grow. Each of the three parking lots must be integrated into existing
facilities and other projects that currently exist or are being planned, designed and
constructed including the extension of West Elkhorn Boulevard associated with the
South Development Infrastructure Plan, the existing long-term parking lot, the ARCO
fueling station, and existing and future drainage facilities. Scott provided calculations
and plans for concrete retaining walls that were necessitated by grade conflicts
determined during construction.
Lakeridge Sanitation
Butte County, CA
Senior Engineer. NCE is supporting the County in the planning, permitting and design of
a proposed wastewater system that will service the Upper Ridge Community Plan
(URCP) located in Magalia, CA. The URCP development includes the Magalia Center that
supports existing, future commercial, and some residential development (Attachment
1, Upper Ridge Community Plan). NCE's responsibilities include efforts to size the
system, prepare and submit permitting documents to the RWQCB, provide design
documents for the individual septic tank effluent pump (STEP) system, distribution lines
and leach field, provide estimates for operation and maintenance of the system for use
by the County in establishing a Community Service Area, and
Education
BS, Civil Engineering, California
State University, Chico, 1987
Registrations/Certification
Professional Engineer – Civil, CA
#46574
Professional Engineer – Civil, NV
#033545
Affiliations
County Engineer’s Association of
California, Life Member
American Society of Civil
Engineers, Member
Joined NCE
2024
Years of Experience
36 years
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
A-8
support the California Environmental Quality Act (CEQA)
reviews and submittals. It is expected that discharge to
the leach field will be greater than 10,000 gallons per day
(gpd) and less than 100,000 gpd and that the California
Regional Water Control Board – Central Valley Region
(RWQCB) will be the permitting agency as required by
State Water Resources Control Board Order WQ 2014-
0153-DWQ, General Waste Discharge Requirements for
Small Domestic Wastewater Treatment Systems dated
September 23, 2014 (Order). Scott is working with County
staff to develop design wastewater flows and is
coordinating aerial mapping and geotechnical
investigations that will be used in the design of the
project.
Work/Experience Prior to NCE
Ceago Vinegarden
Lake County, CA
Structural Engineer Lead. Ceago Vinegarden and Estate
sits on 163 acres and consists of 50 acres of wine grapes,
8 acres of olive orchards, 2 acres of lavender, and a 1-acre
vegetable and fruit garden. The facility produced wine,
olive oil, and lavender products from onsite harvested
resources. Scott was responsible for providing the
structural calculations for the entire structure, which was
constructed using large timber framing and a non-
standard product Rastra block, an insulated concrete
form. The facility was used for wine production, onsite
tasting and sales, corporate meeting venues, and large-
scale events.
SC Barns Buildings and Fence
Sonoma and Marin Counties, CA
Structural Engineer Lead. SC Barns supplies farm and
ranch equipment needs of Sonoma County, and together
with Scott, they developed a specialty of providing custom
horse barns. Scott provided structural calculations and
construction plans for hundreds of these custom steel
animal shelters, which have been installed throughout the
North Bay region.
Piedmont Lumber/Mendo Mill
Lakeport, CA
Structural Engineer Lead. Scott was responsible for the
expansion of this lumber facility. Scott designed the
foundations for pre-engineered metal buildings that were
used to increase the public sales area of the store and
large, covered storage racks to facilitate the outdoor
storage of bulk lumber materials.
Kelseyville Lumber
Town of Kelseyville, CA
Civil/Structural Engineer Lead. The site sits on 17 acres
and has an 80,000 SF store providing building materials
and home improvement supplies to the local community.
Scott provided the engineering for all site grading,
drainage, and utilities and performed structural
calculations for the foundations to support pre-
engineered covered storage racks for the outdoor storage
of bulk lumber materials.
Short-Span Bridge Replacements
Lake County, CA
Structural Engineer Lead. Lake County's Five-Year
Transportation Master Plan (TMP) program addressed the
preservation and or replacement of short-span bridges
(less than twenty feet), which are not eligible for federal
funding. Annual bridge inspections were conducted by
Department of Public Works staff to determine an
appropriate preservation or replacement project. Scott
was responsible for the structural calculations and design
for the replacement of eight timber bridges with steel
bridges.
Private 3-Span Steel Rail Car Bridge
City of Lakeport, CA
Project Manager. Scott was responsible for providing the
structural calculations and overseeing the construction of
a 3-span steel railcar bridge for a property whose access
was a low water crossing. The railcar bridge was designed
to accommodate fire trucks and other large delivery-type
vehicles, which ultimately facilitated the construction of a
private residence on the otherwise undevelopable
property.
Tanti Residence
Lake County, CA
Project Manager. Scott was responsible for providing the
structural calculations and overseeing the construction of
a 10,000 SF custom home using a non-standard product
Rastra block, an insulated concrete form. This lakefront
home had challenging soil conditions, so the design
included an elaborate foundation system of drilled piers
and grade beams and a unique lateral load-resisting frame
system to facilitate the large number of window openings
that provided expansive views of the lake.
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
A-9
James Signore, PhD, PEQA/QC Pavement Design
QA/QC Pavement Design
James specializes in pavement design and evaluation, rehabilitation and maintenance,
materials assessment, and training. He has experience in designing pavements for many
local agencies, the California Department of Transportation, and for heavy vehicle loading
applications at airfields and ports. He has spent years researching all types of pavement
materials, having directed a state-of-the-art American Association of State Highway and
Transportation Officials Materials Reference Laboratory-certified and Superpave mix
design-equipped research laboratory.
James has taught the National Highway Institute and the American Society of Civil Engineers'
“Techniques for Pavement Rehabilitation” seminars to practicing engineers for 20 years. He
taught graduate courses in pavement engineering at San Jose State University, and many of
his former students are civil engineers at Bay Area local agencies. He uses his practical and
research experience, technical knowledge, and teaching skills to develop an understanding
of client needs and the creation of design and rehabilitation strategies that offer the client-
agency the leading edge in methods and materials for their pavements. James is a former
Member of the Transportation Research Board Committee AFD70, Pavement Rehabilitation,
and a current member of AFD70-1, Pavement Interlayer Systems.
Representative Projects
Street Rehabilitation and ADA Curb Ramp Improvement
City of Diamond Bar, CA
Pavement Design QA/QC Manager. James provided pavement design guidance and quality
assurance/quality control review. The City of Diamond Bar has approximately 145 centerline
miles divided into 7 maintenance zones. Beginning in Spring 2023, NCE was contracted for
3 years to provide the design of PS&E for the City’s annual arterial, collector, and residential
maintenance and rehabilitation programs, as well as standalone annual CDBG curb ramp
improvement projects for up to 3 maintenance zones. As part of the first cycle, NCE designed
$3.5 million of slurry seals, cape seals, and ARHM paving for 104 residential and collector
roadway segments. In addition, NCE also designed over $6.7 million or 4 miles of 4-lane
divided arterial pavement rehabilitation, concrete repairs, bus stop relocations, and curb
ramp improvements. NCE also provided striping and signage plans on the arterials to
implement the City’s bicycle master plan, adding new Class 2 bike lanes with buffers where
no bicycle facilities previously existed and upgrading miles of Class 2 bike lanes to include
buffers and green conflict striping. For the second cycle, NCE designed over $1.5 million for
residential rehabilitation and maintenance and nearly $1.9 million for 1 mile of divided and
undivided arterials, including coordination with Caltrans to execute an encroachment
permit for work within their right of way. Lastly, NCE prepared 3 CDBG curb ramp PS&E
projects.
Pavement Evaluation/Design and Street Rehabilitation Projects
City of Redondo Beach, CA
Pavement QA/QC Manager and Pavement Design Lead. James served as the pavement
design leader and quality assurance/quality control reviewer. NCE has partnered with the
City of Redondo Beach since 2017 with their PMP, multi-year work plan, and asset inventory.
As part of the recent multi-year work plan, NCE pavement engineers refined the PMP
recommendations for the upcoming 3-year rehabilitation program (FY 2025/26–2027/28)
to save the City approximately $1.5 million in overall project costs. Beginning in 2024, NCE
was also contracted by the City to provide the PS&E design for the City’s FY 2022 and
Education
PhD, Civil Engineering,
University of Illinois, Urbana-
Champaign, 1998
MS, Civil Engineering,
University of Illinois, Urbana-
Champaign, 1994
Registration
Professional Engineer – Civil,
CA #62647
Affiliations
Member Transportation
Research Board Committee
AFD70, Pavement
Rehabilitation
Member Transportation
Research Board Committee
AFD70-1, Pavement Interlayer
Systems
Former Member Federal
Aviation Administration
Pavement Technical Working
Group
Joined NCE
2014 plus 1999-2001
Years of Experience
25 years
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project
A-
10
FY 2023 annual roadway maintenance and rehabilitation
catch-up programs. As part of these projects, NCE prepared
the PS&E package for approximately $2.6 million, covering
32 street segments across 5.9 centerline miles. NCE staff
marked out base repair locations, took pavement core
samples, and carried out laboratory testing to develop
project-specific pavement design recommendations. They
also collected curb and gutter damage that will need to be
addressed during construction. The design also includes the
development of new curb ramps, bulb-outs as part of a Safe
Routes to School initiative, intersection reconstruction,
electrical work, sidewalk plaza regrading, and coordination
with the City’s ongoing bicycle and pedestrian master plan
improvements.
Street Rehabilitation Programs and PMS Update Services
City of San Marino, CA
Pavement QA/QC Manager and Flexible Pavement Design.
James provided flexible pavement design and quality
assurance/quality control. FY 2022 & FY 2023 Annual Street
Rehabilitation Program: NCE provided civil and pavement
design for the City of San Marino’s FY 2022 & FY 2023 Annual
Street Rehabilitation Program, covering nearly $6.1 million
and 19 of the City’s most deteriorated street sections.
Innovative pavement solutions resulted in significant cost
savings, allowing more streets to be improved. The project
included comprehensive pavement surveys, base repair
markings, coring, subgrade testing, and sustainable
treatment recommendations, with special attention to
Macadam Road base areas. Over 10,000 linear feet of curb
and gutter repairs and more than 130 ADA curb ramps were
designed. Construction plans featured updated 2021
Greenbook technical specifications and detailed cost
estimates. FY 2020 & FY 2021 Annual Street Rehabilitation
Program: NCE prepared the civil and pavement design plans,
specifications, and engineer’s estimate of probable
construction cost (PS&E) for the City’s annual road
rehabilitation program totaling nearly $5.8 million and about
66 street sections. This also included the identification of
hundreds of curbs and gutter repairs. A comprehensive
pavement design was conducted, including pavement
conditions surveys, base repair markings, pavement coring,
and subgrade laboratory testing. Since 2015, NCE has
assisted the City with PMS and pavement evaluation and
design services. In 2020, the City selected NCE to provide
integrated design services, including PMS, pavement
evaluation and design, and preparation of PS&E packages.
Through its integrated design approach, NCE has helped the
City improve its network PCI by 7 points, from a PCI of 65 in
2018 to a PCI of 72 in 2022, over a period of 4 years. This was
achieved by creating a focused, multi-year plan that met the
City's needs and optimized its capital improvement program
budget.
Maintenance District 6 Phase II Rehabilitation
City of Glendale, CA
Pavement Design QA/QC Manager. James provided
pavement design guidance and quality assurance/quality
control review. NCE was selected by the City of Glendale to
provide the design of PS&E for the Maintenance District 6
Phase II Rehabilitation Project. The project involves
rehabilitating 2.8 miles of residential streets in a historic
neighborhood with treatments ranging from ARHM overlays,
surface reconstruction, and innovative multi-layered ARAM
interlayers to reduce required pavement thickness. As part
of this project, NCE evaluated the existing pavement to
determine feasible rehabilitation alternatives, including
whether the existing macadam underneath the asphalt
pavement could be preserved or removed, marked
pavement base repairs, and designed numerous curb ramps
and driveway aprons. We also designed new curb and gutter
systems along the entirety of every street due to aging
concrete infrastructure and insufficient drainage capacity,
totaling over $3.5 million in curb and gutter construction
alone. Due to extensive roadway re-grading for every street,
NCE had to analyze vertical clearance at 274 driveway
aprons, including the adjustment of driveways and sidewalks
to conform to the grading. The total project cost is nearly
$8.9 million.
California Department of Transportation
Statewide, CA
Contract and Task Order Manager. Since 2015, James has
overseen NCE’s multi-year on-call contract. NCE is presently
providing technical solutions and assisting with
implementing new strategies and policies that will improve
the state’s highway network. Key elements included
concrete materials and pavements, asphalt and plastic-
asphalt materials, construction evaluation, laboratory
testing, and pavement management. Thirty Task Orders
were finalized or are still underway on subjects ranging from
material evaluations to forensic investigations to data
collection and analysis of highway pavement sections
throughout California. Examples of these Task Orders
include: 1) Comparison of statewide rubber hot mix asphalt
performance versus hot mix asphalt performance; 2) Pilot
project investigating the use of plastic binders on SR 162
(District 3) in flexible pavements; 3) Developing a road map
for the implementation of Balanced Mix Design, a new hot
mix asphalt mix design process; 4) Design and testing of rapid
strength concrete mixtures for improved long term
performance; 5) Quantifying impacts of pavement
smoothness; and 6) Incorporating continuously reinforced
concrete pavements into PaveM through preparation of
priority matrices, decision trees and performance models.
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project
A-
11
Mahmoud Samara, MS, EIT
Pavement Design Lead
Mahmoud began his engineering career as a Project Engineer specializing in pavements at
NCE. He has extensive experience in a range of projects, including civil design, pavement
design and evaluation, rehabilitation and maintenance, as well as asset and pavement
management. Mahmoud has expertise in laboratory performance characterization of
flexible pavement materials, pavement management systems, life cycle cost analysis of
pavement structures, non-destructive testing, falling weight deflectometer assessments,
and flexible pavement design. He has proficiency in PMS software such as StreetSaver® and
PAVER™. Mahmoud has also authored several publications and has delivered presentations
on the “performance of asphalt binders” at annual meetings of the Transportation Research
Board.
Representative Projects
Pavement Management Program Updates
City of Yorba Linda, CA
Pavement Engineer. Mahmoud conducted pavement condition surveys, performed
budgetary analysis, and developed multi-year pavement maintenance and rehabilitation
work plans. NCE has served the pavement management needs of the City of Yorba Linda
through three consecutive cycles since 2020. In 2020, NCE transitioned the City’s PAVER™
database to the MTC StreetSaver® platform and, as part of the 2020 and 2022 PMP updates,
finalized tasks such as converting databases, verifying street inventory, field-verifying
pavement inventory, conducting distress/condition surveys using ASTM D6433 on 215
centerline miles, calculating PCI for each street section, performing budgetary analyses with
three funding scenarios, developing seven-year and two-year maintenance and repair work
plans, and preparing the final report for OCTA submittal. NCE prepared the City’s PMP
Update in 2023/24, with the final report submitted to OCTA in May 2024.
Street Rehabilitation and ADA Curb Ramp Improvement
City of Diamond Bar, CA
Pavement Engineer. Mahmoud conducted pavement condition surveys and performed
budgetary analysis. The City of Diamond Bar has approximately 145 centerline miles divided
into 7 maintenance zones. Beginning in Spring 2023, NCE was contracted for 3 years to
provide the design of PS&E for the City’s annual arterial, collector, and residential
maintenance and rehabilitation programs, as well as standalone annual CDBG curb ramp
improvement projects for up to 3 maintenance zones. As part of the first cycle, NCE designed
$3.5 million of slurry seals, cape seals, and ARHM paving for 104 residential and collector
roadway segments. In addition, NCE also designed over $6.7 million or 4 miles of 4-lane
divided arterial pavement rehabilitation, concrete repairs, bus stop relocations, and curb
ramp improvements. NCE also provided striping and signage plans on the arterials to
implement the City’s bicycle master plan, adding new Class 2 bike lanes with buffers where
no bicycle facilities previously existed and upgrading miles of Class 2 bike lanes to include
buffers and green conflict striping. For the second cycle, NCE designed over $1.5 million for
residential rehabilitation and maintenance and nearly $1.9 million for 1 mile of divided and
undivided arterials, including coordination with Caltrans to execute an encroachment
permit for work within their right of way. Lastly, NCE prepared 3 CDBG curb ramp PS&E
projects.
Education
MS, Civil and Environmental
Engineering, Rowan
University, Glassboro, New
Jersey, 2022
BS, Civil Engineering/ Highway
and Bridges Engineering, Al-
Balqa Applied University, Salt,
Jordan, 2017
Registration
Engineer-in-Training – CA
#181889
Affiliations
Associate member with the
American Society of Civil
Engineers
Student Member in Academy
of Pavement Science and
Engineering
Friend of Transportation
Research Board committee
AKM20
Member in Transportation
Research Board Young
Members Subcommittee
Joined NCE
2022
Years of Experience
4 years
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
A-12
Pavement Evaluation/Design and Street Rehabilitation
Projects
City of Redondo Beach, CA
Pavement Engineer. Mahmoud was responsible for
conducting pavement design, pavement coring, developing
pavement rehabilitation recommendations, and preparing
the pavement technical specifications for the project. NCE
has partnered with the City of Redondo Beach since 2017
with their PMP, multi-year work plan, and asset inventory. As
part of the recent multi-year work plan, NCE pavement
engineers refined the PMP recommendations for the
upcoming 3-year rehabilitation program (FY 2025/26–
2027/28) to save the City approximately $1.5 million in
overall project costs. Beginning in 2024, NCE was also
contracted by the City to provide the PS&E design for the
City’s FY 2022 and FY 2023 annual roadway maintenance and
rehabilitation catch-up programs. As part of these projects,
NCE prepared the PS&E package for approximately $2.6
million, covering 32 street segments across 5.9 centerline
miles. NCE staff marked out base repair locations, took
pavement core samples, and carried out laboratory testing
to develop project-specific pavement design
recommendations. They also collected curb and gutter
damage that will need to be addressed during construction.
The design also includes the development of new curb
ramps, bulb-outs as part of a Safe Routes to School initiative,
intersection reconstruction, electrical work, sidewalk plaza
regrading, and coordination with the City’s ongoing bicycle
and pedestrian master plan improvements. NCE also helped
update the City’s bid documents to the newer 2021
Greenbook Specifications and 2023 Caltrans Specifications.
NCE is currently finalizing the 100% PS&E for the FY 2023
program.
Street Rehabilitation Programs and PMS Update Services
City of San Marino, CA
Pavement Engineer. Mahmoud was responsible for
conducting pavement condition surveys, performing
pavement coring and laboratory analysis, developing
pavement design and rehabilitation recommendations, and
preparing technical specifications for the project. FY 2022 &
FY 2023 Annual Street Rehabilitation Program: NCE provided
civil and pavement design for the City of San Marino’s FY
2022 & FY 2023 Annual Street Rehabilitation Program,
covering nearly $6.1 million and 19 of the City’s most
deteriorated street sections. Innovative pavement solutions
resulted in significant cost savings, allowing more streets to
be improved. The project included comprehensive pavement
surveys, base repair markings, coring, subgrade testing, and
sustainable treatment recommendations, with special
attention to Macadam Road base areas. Over 10,000 linear
feet of curb and gutter repairs and more than 130 ADA curb
ramps were designed. Construction plans featured updated
2021 Greenbook technical specifications and detailed cost
estimates. FY 2020 & FY 2021 Annual Street Rehabilitation
Program: NCE prepared the civil and pavement design plans,
specifications, and engineer’s estimate of probable
construction cost (PS&E) for the City’s annual road
rehabilitation program totaling nearly $5.8 million and about
66 street sections. This also included the identification of
hundreds of curbs and gutter repairs. A comprehensive
pavement design was conducted, including pavement
conditions surveys, base repair markings, pavement coring,
and subgrade laboratory testing. Since 2015, NCE has
assisted the City with PMS and pavement evaluation and
design services. In 2020, the City selected NCE to provide
integrated design services, including PMS, pavement
evaluation and design, and preparation of PS&E packages.
Through its integrated design approach, NCE has helped the
City improve its network PCI by 7 points, from a PCI of 65 in
2018 to a PCI of 72 in 2022, over a period of 4 years. This was
achieved by creating a focused, multi-year plan that met the
City's needs and optimized its capital improvement program
budget.
Maintenance District 6 Phase II Rehabilitation
City of Glendale, CA
Pavement Engineer. Mahmoud was responsible for
conducting pavement condition surveys, performing
pavement coring and laboratory analysis, developing
pavement design using the Caltrans Highway Design Manual,
preparing rehabilitation recommendations, and drafting
technical specifications for the project. NCE was selected by
the City of Glendale to provide the design of PS&E for the
Maintenance District 6 Phase II Rehabilitation Project. The
project involves rehabilitating 2.8 miles of residential streets
in a historic neighborhood with treatments ranging from
ARHM overlays, surface reconstruction, and innovative
multi-layered ARAM interlayers to reduce required
pavement thickness. As part of this project, NCE evaluated
the existing pavement to determine feasible rehabilitation
alternatives, including whether the existing macadam
underneath the asphalt pavement could be preserved or
removed, marked pavement base repairs, and designed
numerous curb ramps and driveway aprons. We also
designed new curb and gutter systems along the entirety of
every street due to aging concrete infrastructure and
insufficient drainage capacity, totaling over $3.5 million in
curb and gutter construction alone. Due to extensive
roadway re-grading for every street, NCE had to analyze
vertical clearance at 274 driveway aprons, including the
adjustment of driveways and sidewalks to conform to the
grading. The total project cost is nearly $8.9 million.
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
A-13
Patricia Oelkers
Staff Engineer
Patricia began her engineering career as a Staff Engineer at NCE and provides engineering
and design support on civil engineering projects, including roadway rehabilitation and
reconstruction, ADA curb ramp design, pedestrian safety improvement, on-street bicycle
facilities, and shared-use trails. She has experience in AutoCAD Civil 3D for roadway
regrading and realignment. She assists in the preparation of plans and estimates and
conducts site visits for proposed design improvements.
Representative Projects
Street Rehabilitation and ADA Curb Ramp Improvement
City of Diamond Bar, CA
Staff Engineer. Patricia is responsible for marking repairs (e.g., curb and gutter, cross gutter,
and curb ramps) in the field, preparing improvement and striping plans, and assisting with
the engineer’s cost estimate for the design. In addition, Patricia is also assisting in the data
gathering and design of the curb ramps package. The City of Diamond Bar has approximately
145 centerline miles divided into 7 maintenance zones. Beginning in Spring 2023, NCE was
contracted for 3 years to provide the design of PS&E for the City’s annual arterial, collector,
and residential maintenance and rehabilitation programs, as well as standalone annual
CDBG curb ramp improvement projects for up to 3 maintenance zones. As part of the first
cycle, NCE designed $3.5 million of slurry seals, cape seals, and ARHM paving for 104
residential and collector roadway segments. In addition, NCE also designed over $6.7 million
or 4 miles of 4-lane divided arterial pavement rehabilitation, concrete repairs, bus stop
relocations, and curb ramp improvements. NCE also provided striping and signage plans on
the arterials to implement the City’s bicycle master plan, adding new Class 2 bike lanes with
buffers where no bicycle facilities previously existed and upgrading miles of Class 2 bike
lanes to include buffers and green conflict striping. For the second cycle, NCE designed over
$1.5 million for residential rehabilitation and maintenance and nearly $1.9 million for 1 mile
of divided and undivided arterials, including coordination with Caltrans to execute an
encroachment permit for work within their right of way. Lastly, NCE prepared 3 CDBG curb
ramp PS&E projects.
Pavement Evaluation/Design and Street Rehabilitation Projects
City of Redondo Beach, CA
Staff Engineer. Patricia is responsible for coordinating data collection efforts and collecting
curb ramp data to design ADA-compliant curb ramps. She's also creating improvement plans
and striping plans, the engineer's cost estimate, and the template and payment items for
technical specifications. She is also assisting with the design and 3D grading of multiple bulb-
outs. NCE has partnered with the City of Redondo Beach since 2017 with their PMP, multi-
year work plan, and asset inventory. As part of the recent multi-year work plan, NCE
pavement engineers refined the PMP recommendations for the upcoming 3-year
rehabilitation program (FY 2025/26–2027/28) to save the City approximately $1.5 million in
overall project costs. Beginning in 2024, NCE was also contracted by the City to provide the
PS&E design for the City’s FY 2022 and FY 2023 annual roadway maintenance and
rehabilitation catch-up programs. As part of these projects, NCE prepared the PS&E package
for approximately $2.6 million, covering 32 street segments across 5.9 centerline miles. NCE
staff marked out base repair locations, took pavement core samples, and carried out
laboratory testing to develop project-specific pavement design recommendations. They also
collected curb and gutter damage that will need to be addressed during construction. The
design also includes the development of new curb ramps, bulb-outs as part of a Safe Routes
to School initiative, intersection reconstruction, electrical work, sidewalk plaza
Education
BS, Civil Engineering,
California State University
Polytechnic, Pomona, 2022
AS, Engineering, Orange Coast
College, Costa Mesa, 2019
Affiliations
American Society of Civil
Engineers
American Public Works
Association
Joined NCE
2022
Years of Experience
4 years
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
A-14
regrading, and coordination with the City’s ongoing bicycle
and pedestrian master plan improvements. NCE also helped
update the City’s bid documents to the newer 2021
Greenbook Specifications and 2023 Caltrans Specifications.
NCE is currently finalizing the 100% PS&E for the FY 2023
program.
Street Rehabilitation Programs and PMS Update Services
City of San Marino, CA
Staff Engineer. Patricia is responsible for marking repairs
(e.g., curb and gutter, cross gutter, and curb ramps) in the
field, preparing improvement plans and pavement cross-
section details, and assisting with the engineer’s cost
estimate for the design. FY 2022 & FY 2023 Annual Street
Rehabilitation Program: NCE provided civil and pavement
design for the City of San Marino’s FY 2022 & FY 2023 Annual
Street Rehabilitation Program, covering nearly $6.1 million
and 19 of the City’s most deteriorated street sections.
Innovative pavement solutions resulted in significant cost
savings, allowing more streets to be improved. The project
included comprehensive pavement surveys, base repair
markings, coring, subgrade testing, and sustainable
treatment recommendations, with special attention to
Macadam Road base areas. Over 10,000 linear feet of curb
and gutter repairs and more than 130 ADA curb ramps were
designed. Construction plans featured updated 2021
Greenbook technical specifications and detailed cost
estimates. FY 2020 & FY 2021 Annual Street Rehabilitation
Program: NCE prepared the civil and pavement design plans,
specifications, and engineer’s estimate of probable
construction cost (PS&E) for the City’s annual road
rehabilitation program totaling nearly $5.8 million and about
66 street sections. This also included the identification of
hundreds of curbs and gutter repairs. A comprehensive
pavement design was conducted, including pavement
conditions surveys, base repair markings, pavement coring,
and subgrade laboratory testing. Since 2015, NCE has
assisted the City with PMS and pavement evaluation and
design services. In 2020, the City selected NCE to provide
integrated design services, including PMS, pavement
evaluation and design, and preparation of PS&E packages.
Through its integrated design approach, NCE has helped the
City improve its network PCI by 7 points, from a PCI of 65 in
2018 to a PCI of 72 in 2022, over a period of 4 years. This was
achieved by creating a focused, multi-year plan that met the
City's needs and optimized its capital improvement program
budget.
Design Services for FY 23-24 Street Rehabilitation
City of Alhambra, CA
Staff Engineer. Patricia is responsible for collecting and
marking concrete repairs, verifying ADA-compliant curb
ramps, preparing the basemap for the plans, creating
improvement and striping plans, and designing curb ramps.
She is also assisting with the engineers' cost estimate and
updating bid items and payment clauses within the technical
specifications. The City of Alhambra selected NCE to design
PS&E for the City's annual roadway maintenance and
rehabilitation projects. The project covered $3.1 million in
improvements across 20 streets segments, approximately
3.6 miles of residential streets. NCE staff collected data on
curb and gutter damage to address drainage problems,
pavement cross slopes, existing utility covers, and base
repairs. The project included pavement treatments ranging
from shallow overlays with Asphalt Rubber Hot-Mix to full-
depth reconstructions, over 7,000 linear feet of curb and
gutter repairs, the replacement of 73 driveways, the design
of 18 new ADA-compliant curb ramps, and the design of 44
retrofit ADA-compliant curb ramps.
Maintenance District 6 Phase II Rehabilitation
City of Glendale, CA
Staff Engineer. Patricia is responsible for marking repairs
(e.g., driveways, sidewalks, cross gutters) in the field and
translating them into the plans. She's also creating striping
plans and assisting with the engineer’s cost estimate. NCE
was selected by the City of Glendale to provide the design of
PS&E for the Maintenance District 6 Phase II Rehabilitation
Project. The project involves rehabilitating 2.8 miles of
residential streets in a historic neighborhood with
treatments ranging from ARHM overlays, surface
reconstruction, and innovative multi-layered ARAM
interlayers to reduce required pavement thickness. As part
of this project, NCE evaluated the existing pavement to
determine feasible rehabilitation alternatives, including
whether the existing macadam underneath the asphalt
pavement could be preserved or removed, marked
pavement base repairs, and designed numerous curb ramps
and driveway aprons. We also designed new curb and gutter
systems along the entirety of every street due to aging
concrete infrastructure and insufficient drainage capacity,
totaling over $3.5 million in curb and gutter construction
alone. Due to extensive roadway re-grading for every street,
NCE had to analyze vertical clearance at 274 driveway
aprons, including the adjustment of driveways and sidewalks
to conform to the grading. The total project cost is nearly
$8.9 million.
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
A-15
Timothy Lee
Staff Engineer
Tim joined NCE as a Staff Engineer and has been involved in civil design and field data
collection for road infrastructure improvements such as curb ramps, shared use paths,
signage, and striping. He has experience in EverFE and AutoCAD Civil 3D. Tim served as the
Vice President, External for the ASCE Cal Poly Pomona Student Chapter, where he developed
technical tours and professional development workshops for student members.
Representative Projects
Pavement Management Program Updates
City of Yorba Linda, CA
Staff Engineer. Timothy assisted in recording maintenance and rehabilitation history into
the StreetSaver database as well as developing the street section database by providing
ArcGIS support. NCE has served the pavement management needs of the City of Yorba Linda
through three consecutive cycles since 2020. In 2020, NCE transitioned the City’s PAVER™
database to the MTC StreetSaver® platform and, as part of the 2020 and 2022 PMP updates,
completed tasks such as converting databases, verifying street inventory, field-verifying
pavement inventory, conducting distress/condition surveys using ASTM D6433 on 215
centerline miles, calculating PCI for each street section, performing budgetary analyses with
three funding scenarios, developing seven-year and two-year maintenance and repair work
plans, and preparing the final report for OCTA submittal. NCE prepared the City’s PMP
Update in 2023/24, with the final report submitted to OCTA in May 2024.
Street Rehabilitation and ADA Curb Ramp Improvement
City of Diamond Bar, CA
Staff Engineer. Timothy aided the street rehabilitation plan production by mapping out
pavement treatments as well as pavement quantities; marking base repair locations and
translating them into CAD; and finally collecting curb ramp field data & producing curb ramp
improvement plans. The City of Diamond Bar has approximately 145 centerline miles divided
into 7 maintenance zones. Beginning in Spring 2023, NCE was contracted for 3 years to
provide the design of PS&E for the City’s annual arterial, collector, and residential
maintenance and rehabilitation programs, as well as standalone annual CDBG curb ramp
improvement projects for up to 3 maintenance zones. As part of the first cycle, NCE designed
$3.5 million of slurry seals, cape seals, and ARHM paving for 104 residential and collector
roadway segments. In addition, NCE also designed over $6.7 million or 4 miles of 4-lane
divided arterial pavement rehabilitation, concrete repairs, bus stop relocations, and curb
ramp improvements. NCE also provided striping and signage plans on the arterials to
implement the City’s bicycle master plan, adding new Class 2 bike lanes with buffers where
no bicycle facilities previously existed and upgrading miles of Class 2 bike lanes to include
buffers and green conflict striping. For the second cycle, NCE designed over $1.5 million for
residential rehabilitation and maintenance and nearly $1.9 million for 1 mile of divided and
undivided arterials, including coordination with Caltrans to execute an encroachment
permit for work within their right of way. Lastly, NCE prepared 3 CDBG curb ramp PS&E
projects.
Street Rehabilitation Programs and PMS Update Services
City of San Marino, CA
Staff Engineer. Timothy conducted field measurement surveys assessing the existing slope
conditions and ADA compliance of curb ramps. He also helped with the production of the
curb ramp improvement plans. FY 2022 & FY 2023 Annual Street Rehabilitation Program:
Education
BS, Civil Engineering,
California State Polytechnic
University, Pomona, 2024
Affiliations
American Society of Civil
Engineers
Joined NCE
2024
Years of Experience
7 years
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
A-16
NCE provided civil and pavement design for the City’s FY
2022 & FY 2023 Annual Street Rehabilitation Program,
covering nearly $6.1 million and 19 of the City’s most
deteriorated street sections. Innovative pavement solutions
resulted in significant cost savings, allowing more streets to
be improved. The project included comprehensive pavement
surveys, base repair markings, coring, subgrade testing, and
sustainable treatment recommendations, with special
attention to Macadam Road base areas. Over 10,000 linear
feet of curb and gutter repairs and more than 130 ADA curb
ramps were designed. Construction plans featured updated
2021 Greenbook technical specifications and detailed cost
estimates. FY 2020 & FY 2021 Annual Street Rehabilitation
Program: NCE prepared the civil and pavement design plans,
specifications, and engineer’s estimate of probable
construction cost (PS&E) for the City’s annual road
rehabilitation program totaling nearly $5.8 million and about
66 street sections. This also included the identification of
hundreds of curbs and gutter repairs. A comprehensive
pavement design was conducted, including pavement
conditions surveys, base repair markings, pavement coring,
and subgrade laboratory testing. Since 2015, NCE has
assisted the City with PMS and pavement evaluation and
design services. In 2020, the City selected NCE to provide
integrated design services, including PMS, pavement
evaluation and design, and preparation of PS&E packages.
Through its integrated design approach, NCE has helped the
City improve its network PCI by 7 points, from a PCI of 65 in
2018 to a PCI of 72 in 2022, over a period of 4 years. This was
achieved by creating a focused, multi-year plan that met the
City's needs and optimized its capital improvement program
budget.
Design Services for FY 23-24 Street Rehabilitation
City of Alhambra, CA
Staff Engineer. Timothy assisted in packaging deliverables
for e-transmittal. The City of Alhambra selected NCE to
design PS&E for the City's annual roadway maintenance and
rehabilitation projects. The project covered $3.1 million in
improvements across 20 streets segments, approximately
3.6 miles of residential streets. NCE staff collected data on
curb and gutter damage to address drainage problems,
pavement cross slopes, existing utility covers, and base
repairs. The project included pavement treatments ranging
from shallow overlays with Asphalt Rubber Hot-Mix to full-
depth reconstructions, over 7,000 linear feet of curb and
gutter repairs, the replacement of 73 driveways, the design
of 18 new ADA-compliant curb ramps, and the design of 44
retrofit ADA-compliant curb ramps.
Pavement Evaluation/Design and Street Rehabilitation
Projects
City of Redondo Beach, CA
Staff Engineer. Timothy contributed to developing the cost
estimate and quantities for curb ramps, creating curb ramp
exemption memos, and assisting in striping improvement
plans. NCE has partnered with the City of Redondo Beach
since 2017 with their PMP, multi-year work plan, and asset
inventory. As part of the recent multi-year work plan, NCE
pavement engineers refined the PMP recommendations for
the upcoming 3-year rehabilitation program (FY 2025/26–
2027/28) to save the City approximately $1.5 million in
overall project costs. Beginning in 2024, NCE was also
contracted by the City to provide the PS&E design for the
City’s FY 2022 and FY 2023 annual roadway maintenance and
rehabilitation catch-up programs. As part of these projects,
NCE prepared the PS&E package for approximately $2.6
million, covering 32 street segments across 5.9 centerline
miles. NCE staff marked out base repair locations, took
pavement core samples, and carried out laboratory testing
to develop project-specific pavement design
recommendations. They also collected curb and gutter
damage that will need to be addressed during construction.
The design also includes the development of new curb
ramps, bulb-outs as part of a Safe Routes to School initiative,
intersection reconstruction, electrical work, sidewalk plaza
regrading, and coordination with the City’s ongoing bicycle
and pedestrian master plan improvements. NCE also helped
update the City’s bid documents to the newer 2021
Greenbook Specifications and 2023 Caltrans Specifications.
PA&ED Safe Route to School Corridor Improvements
City of Santa Maria, CA
Staff Engineer. Timothy assisted in developing striping and
signage improvement plans and their quantities; basemap
preparation; as well as addressing city comments in plan
production. The City has secured ATP-grant (State-only)
funding, including a local match totaling $8.131 million ($0.5
million for PA&ED, $0.5 million for PS&E, $0.6 million for
ROW, and $6.531 million for construction) for the Active
Santa Maria Safe Routes to School Project. The City aims to
enhance safety, connectivity, and mobility for active
transportation users by providing new or upgraded facilities
such as bike lanes, sidewalks, crosswalks, curb ramps, traffic
beacons, shared use path, signage, and striping. The
improvements will also directly benefit five local Santa Maria
elementary and middle schools and Allan Hancock College.
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
A-17
Cindy Nguyen, EIT
Staff Engineer
Cindy recently began her engineering career as a Staff Engineer at NCE and has been
assisting in creating plan sheets that will be used for curb ramp and striping improvements.
She also has experience in field data collection for roadways, ramps, and pavement
distresses. Cindy has experience drawing in both AutoCAD Civil 3D and MicroStation.
Representative Projects
Street Rehabilitation and ADA Curb Ramp Improvement
City of Diamond Bar, CA
Staff Engineer. Cindy is responsible for utility data field collection, preparation of
improvement and striping plans, and utility coordination. The City of Diamond Bar has
approximately 145 centerline miles divided into 7 maintenance zones. Beginning in Spring
2023, NCE was contracted for 3 years to provide the design of PS&E for the City’s annual
arterial, collector, and residential maintenance and rehabilitation programs, as well as
standalone annual CDBG curb ramp improvement projects for up to 3 maintenance zones.
As part of the first cycle, NCE designed $3.5 million of slurry seals, cape seals, and ARHM
paving for 104 residential and collector roadway segments. In addition, NCE also designed
over $6.7 million or 4 miles of 4-lane divided arterial pavement rehabilitation, concrete
repairs, bus stop relocations, and curb ramp improvements. NCE also provided striping and
signage plans on the arterials to implement the City’s bicycle master plan, adding new Class
2 bike lanes with buffers where no bicycle facilities previously existed and upgrading miles
of Class 2 bike lanes to include buffers and green conflict striping. For the second cycle, NCE
designed over $1.5 million for residential rehabilitation and maintenance and nearly $1.9
million for 1 mile of divided and undivided arterials, including coordination with Caltrans to
execute an encroachment permit for work within their right of way. Lastly, NCE prepared 3
CDBG curb ramp PS&E projects.
PA&ED Safe Route to School Corridor Improvements Project
City of Santa Maria, CA
Staff Engineer. Cindy is responsible for verifying quantities and assisting with striping plans.
The City of Santa Maria has secured Active Transportation Plan-grant (State-only) funding,
including a local match totaling $8.131 million ($0.5 million for PA&ED, $0.5 million for PS&E,
$0.6 million for ROW, and $6.531 million for construction) for the Active Santa Maria Safe
Routes to School Project. The primary purpose of this project is to deliver the PA&ED for the
project along the following corridors: 1) Fesler Street from Blosser Road to Bradley Road (~2
miles); 2) S. Bradley Street from Main Street to Stowell Road (~1 mile) and from Fesler Street
to Chapel Street (~0.1 miles) and 3) E. Jones Street from College Drive to Suey Road (~0.9
miles). The City aims to enhance safety, connectivity, and mobility for active transportation
users by providing new or upgraded facilities such as bike lanes, sidewalks, crosswalks, curb
ramps, traffic beacons, shared use path, signage, and striping. The improvements will also
directly benefit five local Santa Maria elementary and middle schools and Allan Hancock
College.
2025 and 2026 Street Resurfacing and Rehabilitation Design
City of Dublin, CA
Staff Engineer. Cindy is responsible for preparing improvement and striping plans. NCE is
preparing pavement design recommendations and construction design documents for the
City of Dublin's 2025 and 2026 street resurfacing and rehabilitation projects. The street list
Education
BS, Civil Engineering,
California State Polytechnic
University, Pomona, 2023
Registration
Engineer-in-Training – CA
#181596
Joined NCE
2024
Years of Experience
2 years
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
A-18
includes approximately 4.4 miles (18 sections) of cape seal
and 44.5 miles (262 sections) of slurry seal candidate streets
on arterial, collector, and residential streets, and
approximately 0.7 miles (3 segments) of rehabilitation on
arterial streets. The scope of work includes 1) pavement
design, 2) construction design PS&E for two programs, 3)
implementation of various bicycle and pedestrian facility
improvements identified by the City, and 4) support services
during bidding and construction.
2025 Richmond Citywide Curb Ramp Project
City of Richmond, CA
Staff Engineer. Cindy is responsible for portions of the field
measurements, curb ramp recommendations, layout, and
providing the client with quantities. NCE is preparing
construction documents for the City of Richmond Citywide
Curb Ramp Project for more than 100 corner upgrades
throughout the City. Field data was collected and used for
ADA curb ramp recommendations per Caltrans standards
and to provide the City with a footprint for bidding support,
by detailing out each layout and adjusting per the field
conditions.
Paving Project
East Bay Municipal Utility District, CA
Staff Engineer. Cindy is responsible for preparing
improvement plans. NCE is preparing pavement design
recommendations and construction design documents for
the East Bay Municipal Utility District’s facilities, such as
distribution and supply reservoirs, water facilities, recreation
areas, and pumping stations. The Year 1 List includes
multiple facilities throughout Alameda and Contra Costa
Counties that require pavement resurfacing and
reconstruction, as well as ADA accessibility improvements.
The scope of work includes 1) pavement design, 2)
construction design PS&E, and 3) support services during
bidding and construction.
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
A-19
Joseph De Leon
Engineering Technician
Joseph joined NCE in 2017 as a pavement management technician and is experienced in
collecting distress data for pavement management systems. Apart from conducting field
inspections, he has performed all functions related to data collection and is an active
participant in the quality control process. As part of this process, he performs cross-checks
of data in the Pavement Management Program database. Joseph has performed quality
control checks of field-collected data and pavement maintenance history to ensure that
PMP databases are accurate and up to date. During this process, he generates detailed
reports needed to help perform his crosschecks of the data collected. Joseph has completed
the Orange County Transportation Authority’s PAVER™ ‘Distress Identification’ course for
Asphalt Concrete and Portland Cement Pavements. Joseph is also certified by the
Metropolitan Transportation Commission to perform pavement distress inspections; the
certification testing involves passing a rigorous field test to test the inspector’s knowledge
of the distress procedures once a year. The Pavement Inspector Certification/Testing covers
both American Society for Testing and Materials D6433 for PAVER™ and StreetSaver®
modified American Society for Testing and Materials D6433 distress types.
Representative Projects
Pavement Management Program Updates
City of Yorba Linda, CA
Engineering Technician. Joseph provided GIS database management, Field PCI inspections,
and QA/QC. NCE has served the pavement management needs of the City of Yorba Linda
through three consecutive cycles since 2020. In 2020, NCE transitioned the City’s PAVER™
database to the MTC StreetSaver® platform and, as part of the 2020 and 2022 PMP updates,
prepared tasks such as converting databases, verifying street inventory, field-verifying
pavement inventory, conducting distress/condition surveys using ASTM D6433 on 215
centerline miles, calculating PCI for each street section, performing budgetary analyses with
three funding scenarios, developing seven-year and two-year maintenance and repair work
plans, and preparing the final report for OCTA submittal. NCE prepared the City’s PMP
Update in 2023/24, with the final report submitted to OCTA in May 2024.
Pavement Evaluation/Design and Street Rehabilitation Projects
City of Redondo Beach, CA
Engineering Technician. Joseph provided GIS database management, Field PCI inspections,
and QA/QC. NCE has partnered with the City of Redondo Beach since 2017 with their PMP,
multi-year work plan, and asset inventory. As part of the recent multi-year work plan, NCE
pavement engineers refined the PMP recommendations for the upcoming 3-year
rehabilitation program (FY 2025/26–2027/28) to save the City approximately $1.5 million in
overall project costs. Beginning in 2024, NCE was also contracted by the City to provide the
PS&E design for the City’s FY 2022 and FY 2023 annual roadway maintenance and
rehabilitation catch-up programs. As part of these projects, NCE prepared the PS&E package
for approximately $2.6 million, covering 32 street segments across 5.9 centerline miles. NCE
staff marked out base repair locations, took pavement core samples, and carried out
laboratory testing to develop project-specific pavement design recommendations. They also
collected curb and gutter damage that will need to be addressed during construction. The
design also includes the development of new curb ramps, bulb-outs as part of a Safe Routes
to School initiative, intersection reconstruction, electrical work, sidewalk plaza regrading,
and coordination with the City’s ongoing bicycle and pedestrian master plan
Education
Mendocino College
Certifications
OCTA PAVER™ Certification
MTC StreetSaver® Rater
Certification Program
Joined NCE
2017
Years of Experience
8 years
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
A-20
improvements. NCE also helped update the City’s bid
documents to the newer 2021 Greenbook Specifications and
2023 Caltrans Specifications. NCE is currently finalizing the
100% PS&E for the FY 2023 program.
Street Rehabilitation Programs and PMS Update Services
City of San Marino, CA
Engineering Technician. Joseph provided GIS database
management, Field PCI inspections, and QA/QC. FY 2022 &
FY 2023 Annual Street Rehabilitation Program: NCE provided
civil and pavement design for the City of San Marino’s FY
2022 & FY 2023 Annual Street Rehabilitation Program,
covering nearly $6.1 million and 19 of the City’s most
deteriorated street sections. Innovative pavement solutions
resulted in significant cost savings, allowing more streets to
be improved. The project included comprehensive pavement
surveys, base repair markings, coring, subgrade testing, and
sustainable treatment recommendations, with special
attention to Macadam Road base areas. Over 10,000 linear
feet of curb and gutter repairs and more than 130 ADA curb
ramps were designed. Construction plans featured updated
2021 Greenbook technical specifications and detailed cost
estimates. FY 2020 & FY 2021 Annual Street Rehabilitation
Program: NCE prepared the civil and pavement design plans,
specifications, and engineer’s estimate of probable
construction cost (PS&E) for the City’s annual road
rehabilitation program totaling nearly $5.8 million and about
66 street sections. This also included the identification of
hundreds of curbs and gutter repairs. A comprehensive
pavement design was conducted, including pavement
conditions surveys, base repair markings, pavement coring,
and subgrade laboratory testing. Since 2015, NCE has
assisted the City with PMS and pavement evaluation and
design services. In 2020, the City selected NCE to provide
integrated design services, including PMS, pavement
evaluation and design, and preparation of PS&E packages.
Through its integrated design approach, NCE has helped the
City improve its network PCI by 7 points, from a PCI of 65 in
2018 to a PCI of 72 in 2022, over a period of 4 years. This was
achieved by creating a focused, multi-year plan that met the
City's needs and optimized its capital improvement program
budget.
Design Services for FY 23-24 Street Rehabilitation
City of Alhambra, CA
Engineering Technician. Joseph provided GIS database
management, Field PCI inspections, and QA/QC. The City of
Alhambra selected NCE to design PS&E for the City's annual
roadway maintenance and rehabilitation projects. The
project covered $3.1 million in improvements across 20
streets segments, approximately 3.6 miles of residential
streets. NCE staff collected data on curb and gutter damage
to address drainage problems, pavement cross slopes,
existing utility covers, and base repairs. The project included
pavement treatments ranging from shallow overlays with
Asphalt Rubber Hot-Mix to full-depth reconstructions, over
7,000 linear feet of curb and gutter repairs, the replacement
of 73 driveways, the design of 18 new ADA-compliant curb
ramps, and the design of 44 retrofit ADA-compliant curb
ramps.
Pavement Management and Pavement Condition
Inspections
Various Cities and Counties, CA
Senior Field Technician. Below is a collection of agencies for
which Joseph has performed condition inspections. These
projects have included various forms of inspections for
pavement distress data collection, such as walking,
windshield, and/or automated.
• Aliso Viejo
• Anaheim
• Baldwin Park
• Beaumont
• Beverly Hills
• Buena Park
• City/ County
• Corona
• Dana Point
• Diamond Bar
• Garden Grove
• Hawaiian Gardens
• Lake Forest
• Manhattan Beach
• Mission Viejo
• Monterey Park
• MTC and OCTA
• Newport Beach
• Orange City/County
• Redondo Beach
• San Bernardino
• San Clemente
• San Diego County
• Santa Barbara
• Santa Maria
• Thousand Oaks
• Torrance
• Whittier
• Wildomar
• Yorba Linda
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
B
Appendix B
Sample Projects
City of Diamond Bar –
Area 3 Residential & Collector Streets Rehabilitation And Arterial
Street Rehabilitation (Golden Springs Drive From Grand Avenue to
Avenida Rancheros, Grand Avenue From Diamond Bar Blvd to East
City Limits, Gateway Corporate Center)
Project No. SI24101 & SI24103
HARM
O
N
Y
H
I
L
L
D
R
I
V
E
FOUNTAIN SPRINGS ROADPATHFINDER ROADCASTLE ROCK ROAD
CASTLE R
O
C
K
R
O
A
D SPRINGS DRIVEEVERGREENDIAMOND B
A
R
B
O
U
L
E
V
A
R
D BIRCH HILL DRIVELOST RIVER DRIVESU
N
B
R
I
G
H
T
D
R
I
V
E
C
R
O
O
K
E
D
C
R
E
E
K
D
R
I
V
E
DIAMOND BAR HIGH SCHOOL
EVERGREEN ELEMENTARY SCHOOL
RISING STAR
D
R
I
V
E
DRIVEROUND ROCKHIDDEN PINES DRIVEFOUNTAIN SPRINGS ROADBREA
C
A
N
Y
O
N
R
D
17050 Bushard St., Suite 200
Fountain Valley, Ca. 92708
(714) 848-8897
DATE:
ISSUED FOR
CONSTRUCTIO
N
04/30/202
4
GRAND AVENUEDIAMOND BAR BOULEVARDCLEGHORN DRIVEGRAND AVENUE
ROLLING KNOB ROAD17050 Bushard St., Suite 200
Fountain Valley, Ca. 92708
(714) 848-8897
DATE:
ISSUED FOR
CONSTRUCTIO
N
04/30/202
4 MATCHLINE "G" 18+50 SEE BELOWMATCHLINE "G" 18+50 SEE ABOVEMATCHLINE "G" 28+50 SEE SHEET 28
GRAND AVENUEDIAMOND BAR BOULEVARDCLEGHORN DRIVEGRAND AVENUE
ROLLING KNOB ROAD17050 Bushard St., Suite 200
Fountain Valley, Ca. 92708
(714) 848-8897
DATE:
ISSUED FOR
CONSTRUCTIO
N
05/31/202
4 MATCHLINE "G" 18+50 SEE BELOWMATCHLINE "G" 18+50 SEE ABOVEMATCHLINE "G" 28+50 SEE DRAWING 41
17050 Bushard St., Suite 200
Fountain Valley, Ca. 92708
(714) 848-8897
DATE:
ISSUED FOR
CONSTRUCTIO
N
05/31/202
4
8'4'8'4'
City of Diamond Bar –
Area 3 Residential Neighborhood ADA Curb Ramp Improvement
Project
CDBG Project No. 602474-22
CIP Project No. SI23104
BREA CANYON ROAD
COOL SPRINGS DRIVE3
DATE:
ISSUED
FOR BIDS
05-18-23
COOL SPRINGS DRIVEBREA CANYON ROAD
19
DATE:
ISSUED
FOR BIDS
05-18-23
City of San Marino –
FY 2024 – 25 CDBG Ramp Project
No. 24/25-9272A
OAK KNOLL AVENUEHUNTINGTON DRIVE
HUNTINGTON DRIVECHELSEA ROADHUNTINGTON DRIVEOLD MILL ROAD2300 E. Katella Ave., Ste 125
Anaheim, CA 92806
(657) 275-3018
DATE:
ISSUED
FOR BIDS
05/16/202
5
City of Redondo Beach –
Residential Street Rehabilitation, Cycle 2, Phase 5
Project No. 40190)
FND BRASS DISC
FND SPK & TAG
FND PNCH SPK & W "RCE 30826"
S SMH LID
WM
SIGN
WM WM 14"X19"WM WM 16"X23"
SIGN
WM WM 14"X21"WM WM 14"X21"
SIGN
SIGN
EPB 37"X26"
PP
SIGN
WM WM 16"X23"WM WM 16"X23"
GA
FH SIGN
SIGN
TS
T
S
_
S
PEE
D
C
H
K
SIGN
WM WM 18"X13"
FDC
SIGN
PP
WM
RIPL
E
Y
A
V
E
N
U
EPERKINS LANEHUNTINGTON LANE
2300 E Katella Ave., Suite 125
Anaheim, Ca. 92806
(657) 275-3018
DATE:
ISSUED
FOR BIDS
9/30/202
5
RIPL
E
Y
A
V
E
N
U
EPERKINS LANEFND BRASS DISC
FND SPK & TAG
FND PNCH SPK & W "RCE 30826"
S SMH LID
WM
SIGN
WM WM 14"X19"WM WM 16"X23"
SIGN
WM WM 14"X21"WM WM 14"X21"
SIGN
SIGN
EPB 37"X26"
PP
SIGN
WM WM 16"X23"WM WM 16"X23"
GA
FH SIGN
SIGN
TSTS
_SP
E
ED
CH
K
SIGN
WM WM 18"X13"
FDC
SIGN
PP
WM
HUNTINGTON LANE
2300 E Katella Ave., Suite 125
Anaheim, Ca. 92806
(657) 275-3018
DATE:
ISSUED
FOR BIDS
9/30/202
5MATCHLINE "H2" 28+32 SEE DRAWING C20MATCHLINE "P" 11+20 SEE DRAWING C22
RIPL
E
Y
A
V
E
N
U
EPERKINS LANEFND BRASS DISC
FND SPK & TAG
FND PNCH SPK & W "RCE 30826"
S SMH LID
PPWMWM 16"X23"
SIGN
WM WM 14"X19"WM WM 16"X23"
SIGN
WM WM 14"X21"WM WM 14"X21"
SIGN
SIGN
EPB 37"X26"
PP
SIGN
WM WM 16"X23"WM WM 16"X23"
GA
FH SIGN
SIGN
TS
TS_S
P
EED
CH
K
SIGN
WM WM 18"X13"
FDC
SIGN
PP
WM
2300 E Katella Ave., Suite 125
Anaheim, Ca. 92806
(657) 275-3018
DATE:
ISSUED
FOR BIDS
9/30/202
5MATCHLINE "H2" 28+32 SEE DRAWING S13MATCHLINE "P" 11+20 SEE DRAWING S15
B B
B
B
B BB
B B
B
B
B
B B
B
B B
B
BBB
B B
B
2300 E Katella Ave., Suite 125
Anaheim, Ca. 92806
(657) 275-3018
DATE:
ISSUED
FOR BIDS
9/30/202
5
PLANT LIST
HUNTINGTON AVE & RIPLEY TRAFFIC ISLAND,
REDONDO BEACH, CA
SUNSET ZONE 24, USDA ZONE 10B
CODE BOTANICAL NAME COMMON NAME SIZE SPACING
SHRUBS
S-1 ANIGOZANTHOS 'ORANGE CROSS'ORANGE KANGAROO PAW 1 GAL AS SHOWN
S-2 PHORMIUM 'DUET'DWAF VARIEGATED FLAX 1 GAL AS SHOWN
S-3 YUCCA 'BRIGHT STAR'BRIGHT STAR YUCCA 5 GAL AS SHOWN
S-4 AGAVE BOVICORNUTA COWHORN AGAVE 5 GAL AS SHOWN
S-5 ALOE STRIATA CORAL AGAVE 1 GAL AS SHOWN
S-6 SENECIO MANDRALISCAE BLUE CHALKSTICKS 1 GAL AS SHOWN
S-7 ARCTOSTAPHYLOS EDMUNDSII 'CARMEL SIR'CARMEL SUR MANZANITA 1 GAL AS SHOWN
S-8 AGAVE ATTENUATA FOXTAIL AGAVE 5 GAL AS SHOWN
S-9 GALVEZIA SPECIOSA 'FIRECRACKER'FIRECRACKER BUSH SNAPDRAGON 1 GAL AS SHOWN
S-10 MUHLENBERGIA RIGENS DEER GRASS 1 GAL AS SHOWN
TREES
T-1 CHILOPSIS LINEARIS DESERT WILLOW 24" BOX AS SHOWN
2300 E Katella Ave., Suite 125
Anaheim, Ca. 92806
(657) 275-3018
DATE:
ISSUED
FOR BIDS
9/30/202
5
V
OP
V
V
MOP
VOP
L3.0
2300 E Katella Ave., Suite 125
Anaheim, Ca. 92806
(657) 275-3018
DVDCreative
151 Kalmus Drive, Suite M8
Costa Mesa, CA 92626
714.641.1300
dvdcreative.com
LIMI
T
O
F
W
O
R
K
INSTALL IRRIGATION MAIN LINE 2-FEET BACK OF
WALK/ CURB, WITHIN PLANTING AREA / LIMIT OF
WORK, TYP. - REFER TO "EQUIPMENT LOCATION
NOTES" - THIS SHEET
0.6
2.4 A-1
1"L
0.6
0.6 A-2
1"L
2300 E Katella Ave., Suite 125
Anaheim, Ca. 92806
(657) 275-3018
DVDCreative
151 Kalmus Drive, Suite M8
Costa Mesa, CA 92626
714.641.1300
dvdcreative.com
PROVIDE FOUR SPARE WIRES AND TWO SPARE COMMON WIRES CONTINUOUSLY FROM
AUTOMATIC CONTROLLER TO LAST ELECTRIC CONTROL VALVE BOX, FOLLOWING MAIN
LINE ROUTE. ALLOW 30-INCH EXPANSION LOOP AT EACH CONTROL VALVE ALONG MAIN
LINE ROUTING. THE LOCATIONS FOR SPARE WIRES ARE IDENTIFIED ON DRAWING WITH
THE WORDS "PROVIDE SPARE WIRES AT ECV".
1.REFER TO SHEET L3.2 AND L3.3 FOR COMPLETE IRRIGATION LEGEND, NOTES, AND
WATER USE DATA.
2.REFER TO SHEET L3.4 AND L3.5 FOR IRRIGATION DETAILS.
3.AUTOMATIC LANDSCAPE IRRIGATION EQUIPMENT SHALL BE INSTALLED IN SUCH A
WAY THAT IT DOES NOT SPRAY ON THE BUILDING OR HARDSCAPE.
A
SYMBOL DESCRIPTION
IRRIGATION CONTROLLER
ELECTRIC CONTROL VALVE
ASSEMBLY - DRIP
QUICK COUPLER VALVE
MASTER CONTROL VALVE
REDUCED PRESSURE BACKFLOW
ASSEMBLY
IRRIGATION POINT OF CONNECTION
BALL VALVE
DRIP LINE FLUSH OUT ASSEMBLY
PRESSURE MAIN LINE - SIZE NOTED
NON-PRESSURE LATERAL
LINE PIPING - SIZE NOTED
WIRE SLEEVE - SIZE NOTED
PIPE SLEEVE - SIZE NOTED
L INDICATES PLANT WATER USE CATEGORY
(L= LOW, M=MODERATE, H=HIGH, WATER USE)
INDICATES PRECIPITATION RATE
INDICATES ELECTRIC CONTROL VALVE SIZE
INDICATES IRRIGATION SPRINKLER
CONTROLLER STATION NUMBER
INDICATES FLOW IN GPM FOR ELECTRIC
CONTROL VALVE
1"0.6
5.0
EQUIPMENT LOCATION NOTES
NOTES
VALVE CALLOUT LEGEND
EQUIPMENT LEGEND
1.INSTALL ALL IRRIGATION EQUIPMENT, PRESSURE MAIN LINE PIPING, CONTROLLER WIRING, CONTROL VALVES, ETC.
WITHIN PLANTING AREA. ANY IRRIGATION EQUIPMENT INDICATED OUTSIDE OF PLANTING AREA IS SHOWN FOR
DRAWING CLARITY AND DESIGN INTENT ONLY.
2.INSTALL IRRIGATION MAIN LINE PIPING IN PLANTING AREA 2-FEET MINIMUM BACK OF HARDSCAPE.
3.PIPING AS SHOWN ON DRAWINGS IS SCHEMATIC AND INDICATES THE INTENT OF IRRIGATION DELIVERY METHODS.
4.IRRIGATION CONTROLLER AND OTHER IRRIGATION EQUIPMENT LOCATIONS SHOWN ON THE DRAWINGS ARE
APPROXIMATE. CONTRACTOR SHALL STAKE OUT ALL IRRIGATION EQUIPMENT LOCATIONS FOR REVIEW AND APPROVAL
BY THE LANDSCAPE ARCHITECT PRIOR TO INSTALLATION.
5.ELECTRIC CONTROL VALVES, QUICK COUPLING VALVES, AND ISOLATION VALVES, ETC. LOCATIONS INDICATED ON THE
DRAWINGS ARE SHOWN AS APPROXIMATE. CONTRACTOR SHALL STAKE OUT EACH VALVE ASSEMBLY FOR REVIEW AND
APPROVAL BY THE LANDSCAPE ARCHITECT PRIOR TO INSTALLATION.
6.FINAL LOCATIONS AND EXACT POSITIONING OF IRRIGATION EQUIPMENT ON THE DRAWINGS SHALL BE DETERMINED BY
THE LANDSCAPE ARCHITECT. MINOR MODIFICATIONS OF IRRIGATION EQUIPMENT AS REQUESTED BY OWNER OR
LANDSCAPE ARCHITECT SHALL BE PROVIDED BY CONTRACTOR AT NO ADDITIONAL COST. FAILURE TO OBTAIN OWNER/
LANDSCAPE ARCHITECT APPROVAL PRIOR TO INSTALLATION SHALL CAUSE CONTRACTOR TO MAKE OWNER/
LANDSCAPE ARCHITECT DIRECTED CHANGES AT NO ADDITIONAL COST.
SPARE WIRE NOTE
V
M
A-1
OP
DRIP SYSTEM OPERATION
INDICATOR KIT
DRIPLINE SYSTEM
IRRIGATION POINT-OF-CONNECTION - CONNECT TO NEW 1-INCH POTABLE WATER METER AND SERVICE LINE FOR
IRRIGATION SUPPLY. WATER SERVICE CONNECTION PER CAL WATER DEPARTMENT. REFER TO CIVIL ENGINEERING
DRAWINGS FOR ACTUAL WATER METER LOCATION AND ADDITIONAL WATER SUPPLY INFORMATION.
PEAK IRRIGATION DEMAND:4 G.P.M.
SYSTEM DESIGN PRESSURE:60 P.S.I.
EXISTING WATER PRESSURE (STATIC):75 P.S.I.
IRRIGATED AREA OF COVERAGE:442 s.f.
IRRIGATION SYSTEM 'A' POINT-OF-CONNECTION NOTE
AREA - 358 S.F.
TUBING - 238 L.F.
AREA - 84 S.F.
TUBING - 56 L.F.
PROVIDE SPARE
WIRES AT ECV
REFER TO "IRRIGATION SYSTEM 'A'
POINT-OF-CONNECTION NOTE" - THIS SHEET
A
6SL
4SL
4SL
1"
1"
2
L3.4
IRRIGATION CONTROLLER -
SOLAR
LIMI
T
O
F
W
O
R
K
LIMIT OF WORK
LIMIT OF WORKLIMIT OF WORK
INSTALL IRRIGATION EQUIPMENT 2-FEET BACK
OF WALK/ CURB, WITHIN PLANTING AREA / LIMIT
OF WORK
DATE:
ISSUED
FOR BIDS
9/30/202
5
City of Diamond Bar – FY 25/26 Civil Engineering Design Services For: Residential & Collector Streets
Rehabilitation, Arterial Streets Rehabilitation, and Residential Neighborhood ADA Curb Ramps
Improvement Project (No. SI261)
C
Appendix C
Signed Addenda
ADDENDUM NO. 1
DEPARTMENT OF PUBLIC WORKS
ADDENDUM NO. 1
FY 25/26 CIVIL ENGINEERING DESIGN SERVICES FOR:
Residential & Collector Streets Rehabilitation,
Arterial Streets Rehabilitation, and
Residential Neighborhood ADA Curb Ramps Improvement Project
City Project No. SI261
The following revisions and clarifications to the Request for Proposals (RFP) shall be
incorporated into the solicitation documents for the above-referenced Design Consultant
Services project.
The Consultant shall sign this page as acknowledgement of receipt of Addendum No. 1 and
attach it to the RFP.
David G. Liu, P.E. Date
Director of Public Works/City Engineer
Consultant's Authorized Signature
RMRA Measure M R Local Return Gas Tax
eet Rehab.- Area 1a, 1b, 2 (Design)
n)
ntain Laurel)
anyon to Lemon)
to BCY)
82,779$ 82,779$
om Pathfinder to Mountain Laurel Way) (Const.)1,200,000$ 1,200,000$
eet Rehab - Area 1 (Const.)2,000,000$ 925,000$ 850,000$ 89,0$
en Springs from Brea Canyon to Lemon Ave.) (Const.)900,000$ 500,000$
mp Project (Const.)177,855$
nt Projects 4,360,634$ 1,700,000$ 1,007,779$ 850,000$ 89,0$
250-5510-46412)
Project Description Total FY Budget (109) Measure
M
(111)
Gas Tax
(112)
Prop A
(113)
Prop C
Sign and HSL Replacement (Design)50,000$ 50,000$
Sign and HSL Replacement (Construction)350,000$ 350,000$
al 11 Locations (Design and Construction)380,000$ 90,000$ 100,000$ 190,0$
780,000$ 350,000$ 140,000$ 100,000$ 190,0$
ments (250-5510-46413)
Project Description Total FY Budget (113)
Prop C
Foothill Transit
Grant
60,000$ 60,000$
SD/Calbourne 40,000$ 40,000$
nfrastructure Improvements 100,000$ 60,000$ 40,000$
0-5510-46420)
Project Description Total FY Budget (107) Measure
W
(108)
RMRA
(109)
Measure M
(113)
Prop C
ovements-Phase 3 (Flapjack-Design)65,000$ 65,000$
10/22/2025
11/05/2025
ADDENDUM NO. 2
DEPARTMENT OF PUBLIC WORKS
ADDENDUM NO. 2
FY 25/26 CIVIL ENGINEERING DESIGN SERVICES FOR:
Residential & Collector Streets Rehabilitation,
Arterial Streets Rehabilitation, and
Residential Neighborhood ADA Curb Ramps Improvement Project
City Project No. SI261
The following revisions and clarifications to the Request for Proposals (RFP) shall be
incorporated into the solicitation documents for the above-referenced Design Consultant
Services project.
The Consultant shall sign this page as acknowledgement of receipt of Addendum No. 2 and
attach it to the RFP.
David G. Liu, P.E. Date
Director of Public Works/City Engineer
Consultant's Authorized Signature
RMRA Measure M R Local Return Gas Tax
eet Rehab.- Area 1a, 1b, 2 (Design)
n)
ntain Laurel)
anyon to Lemon)
to BCY)
82,779$ 82,779$
om Pathfinder to Mountain Laurel Way) (Const.)1,200,000$ 1,200,000$
eet Rehab - Area 1 (Const.)2,000,000$ 925,000$ 850,000$ 89,0$
en Springs from Brea Canyon to Lemon Ave.) (Const.)900,000$ 500,000$
mp Project (Const.)177,855$
nt Projects 4,360,634$ 1,700,000$ 1,007,779$ 850,000$ 89,0$
250-5510-46412)
Project Description Total FY Budget (109) Measure
M
(111)
Gas Tax
(112)
Prop A
(113)
Prop C
Sign and HSL Replacement (Design)50,000$ 50,000$
Sign and HSL Replacement (Construction)350,000$ 350,000$
al 11 Locations (Design and Construction)380,000$ 90,000$ 100,000$ 190,0$
780,000$ 350,000$ 140,000$ 100,000$ 190,0$
ments (250-5510-46413)
Project Description Total FY Budget (113) Prop C Foothill Transit Grant
60,000$ 60,000$
SD/Calbourne 40,000$ 40,000$
nfrastructure Improvements 100,000$ 60,000$ 40,000$
0-5510-46420)
Project Description Total FY Budget (107) Measure
W
(108)
RMRA
(109)
Measure M
(113)
Prop C
ovements-Phase 3 (Flapjack-Design)65,000$ 65,000$
10/28/2025
11/05/2025
ADDENDUM NO. 3
DEPARTMENT OF PUBLIC WORKS
ADDENDUM NO. 3
FY 25/26 CIVIL ENGINEERING DESIGN SERVICES FOR:
Residential & Collector Streets Rehabilitation,
Arterial Streets Rehabilitation, and
Residential Neighborhood ADA Curb Ramps Improvement Project
City Project No. SI261
The following revisions and clarifications to the Request for Proposals (RFP) shall be
incorporated into the solicitation documents for the above-referenced Design Consultant
Services project.
The Consultant shall sign this page as acknowledgement of receipt of Addendum No. 3 and
attach it to the RFP.
David G. Liu, P.E. Date
Director of Public Works/City Engineer
Consultant's Authorized Signature
RMRA Measure M R Local Return Gas Tax
eet Rehab.- Area 1a, 1b, 2 (Design)
n)
ntain Laurel)
anyon to Lemon)
to BCY)
82,779$ 82,779$
om Pathfinder to Mountain Laurel Way) (Const.)1,200,000$ 1,200,000$
eet Rehab - Area 1 (Const.)2,000,000$ 925,000$ 850,000$ 89,0$
en Springs from Brea Canyon to Lemon Ave.) (Const.)900,000$ 500,000$
mp Project (Const.)177,855$
nt Projects 4,360,634$ 1,700,000$ 1,007,779$ 850,000$ 89,0$
250-5510-46412)
Project Description Total FY Budget (109) Measure M (111)Gas Tax (112) Prop A (113) Prop C
Sign and HSL Replacement (Design)50,000$ 50,000$
Sign and HSL Replacement (Construction)350,000$ 350,000$
al 11 Locations (Design and Construction)380,000$ 90,000$ 100,000$ 190,0$
780,000$ 350,000$ 140,000$ 100,000$ 190,0$
ments (250-5510-46413)
Project Description Total FY Budget (113)
Prop C
Foothill Transit
Grant
60,000$ 60,000$
SD/Calbourne 40,000$ 40,000$
nfrastructure Improvements 100,000$ 60,000$ 40,000$
0-5510-46420)
Project Description Total FY Budget (107) Measure
W
(108)
RMRA
(109)
Measure M
(113)
Prop C
ovements-Phase 3 (Flapjack-Design)65,000$ 65,000$ 11/4/2025
11/05/2025