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HomeMy WebLinkAboutSpecial Provisions 200 300 800 Sections 8.27 P:\Documents\Park Projects\Canyon Loop Trail Project\Plans & Specs\SP 200 300 800 Sections 8.27.21.docx SP- 1 SPECIAL PROVISIONS PART 2 CONSTRUCTION MATERIALS 200 ROCK PRODUCTS 200-1 ROCK PRODUCTS [Add the following section to the end]: 200-1.6 Stone for Rock-Filled Gabions and Stairs/Wall Drainage Swales 200-1.6.1 General. Stone for Rock Cobble shall be quarrystone rubble, which shall be angular in shape. Flat or elongated shapes will not be accepted unless the thickness of the individual pieces is at least 1/3 of the length. Stone shall be Honey Quartz Rock Cobble, in a variety of sizes, ranging from 4 inches to 8 inches. Stone is available from KRC Rock (800) KRC-ROCK www.KRCROCK.com SECTION 201 – CONCRETE, MORTAR, AND RELATED MATERIALS 201-1 Portland Cement Concrete. 201-1.1.2 Concrete Specified by Class and Alternate Class. [Add the following]: The class of concrete shall be Commercial Grade Quickcrete 5000 Concrete Mix, or approved equal. with a maximum slump of three (3) inches for all footings, swales, and drainage crossings. The class of concrete shall also be Commercial Grade Quickcrete 5000 Concrete Mix unless otherwise specified in the Structural Drawings provided by the Shade Shelter manufacturer. 201-1.1.3 Concrete Specified by Special Exposure. [Add the following]: Test for Portland Cement Concrete 5. All material shall comply with Los Angeles County Standards, American Concrete Institute (Act 1) and Uniform Building Code. 6. Product Data: a. Submit complete materials list of items proposed for the work. Identify materials source. b. Submit any admixture, curing compound, retarder, or accessory item product data. c. Submit material certificates for aggregates, reinforcing, and joint fillers. P:\Documents\Park Projects\Canyon Loop Trail Project\Plans & Specs\SP 200 300 800 Sections 8.27.21.docx SP- 2 7. Provide field quality control inspection during concrete operations. 8. CONTRACTOR shall provide adequate notice, cooperate with, provide access to the work, obtain samples, and assist test agency and their representatives in execution of their function. SECTION 204 – LUMBER AND TREATMENT WITH PRESERVATIVES 204-1.1.2 Hemlock - Fir. 1. Wood Stairs Timbers shall be as detailed on the Plans. 2. Timbers shall be 6 X 8 Pressure-treated landscape ties. 3. All boards shall be tight knot or better. 4. All lumber shall be free of warped or twisted members. Defective lumber shall be rejected and removed from the site. 204-1.1.2 Steel T-Post and Rail Fencing 1. Post and Rail Fencing shall be as detailed on the Plans. 2. Posts shall be a minimum of 5’- 6” long; studded Steel T-Posts 3. Rails shall be pressure-treated Douglas Fir. 4. Rails shall be spliced only at post locations, with an 18” long splice material (identical to rails material); secured with Galvanized Deck Screws from the back side. 5. Rails shall be secured to the steel T-Post with 3” X 5.5” Vertical T-Post Brackets 6. All boards shall be tight knot or better. 7. All lumber shall be free of warped or twisted members. Defective lumber shall be rejected and removed from the site. 8. All rails shall be stained with (2) coats of Dunn-Edwards Black Walnut stain. SECTION 206 – MISCELLANEOUS METAL ITEMS 206-5.1 Metal Hand Railings Materials – General 1. Metal Hand Railings shall be as detailed on the Plans. 2. Railing and Post materials shall be 1 ¼” diameter Schedule 40 galvanized pipe. 206-7.1 Pre-manufactured Shelter Construction - General See Section 215 Pre-Manufactured Items; subsection 215-2.2 Shade Structures. 206-6.10 Gabion Wall Cages – General 1. Gabion Wall Cages shall be as detailed on the Plans. 2. Gabion Cage materials shall be galvanized steel. P:\Documents\Park Projects\Canyon Loop Trail Project\Plans & Specs\SP 200 300 800 Sections 8.27.21.docx SP- 3 SECTION 213 - ENGINEERING SYNTHETICS [Add the following section to the end.] 213-5 Geotextiles and Geogrids 213-5.2 Filter Fabric Filter Fabric shall be Mirafi 140N non-woven geotextile filter fabric. SECTION 215 - PRE-MANUFACTURED ITEMS [Add the following section to the end.] 215-2 Site Furnishings 215-2.0 "Or Approved Equal" Provision Throughout these Specifications, various types of products are specified with a an "Or Approved Equal" provision. It shall be the CONTRACTOR'S responsibility to verify the equality of suitability of any non-specified product or fixture in advance of installation or bidding by confirming its approval by the CITY. Failure to do so shall be grounds for rejection of the installation. 215-2.1 Benches Benches shall be of the type as specified in the Plans, manufactured by DuMor, Bench Model 88, 4’ long, with Recycled Plastic Slats, with Embedment S-1 legs. Contact RECWEST OUTDOOR PRODUCTS (898) 735-3838. 215-2.2 Shade Shelters Hiking Trail Shade Shelters shall be of the type as specified in the Plans, manufactured by RCP Shelters, Inc. Model #TS-G8-2P-04, 8’ X 8’ Steel 2-Post Gable Shelters. Contact RCP SHELTERS, INC. Bryce Cooper (772) 291-2010. Shelter’s steel frame shall be powdercoated at the manufacturers in a Building Brown color, and the metal roof shall be powdercoated at the manufacturers in an Evergreen color. 215-2.3 Educational Trail Signs Educational Trail Signs with graphics shall be of the type as specified in the Plans, manufactured by Fossil Graphics Inc. Contact: Linda Peters (631) 998-6160 or LindaP@FossilGraphics.com Graphics shall be manufactured as ½ Custom High-Pressure Laminate (CHPL), composed of multiple layers of phenolic resin impregnated kraft filler paper, customized imaged graphics, a layer of melamine resin, and covered by a layer of translucent exterior UV/graffiti overlay protection. Graphics shall be made using 12-color High-Definition printing technology. P:\Documents\Park Projects\Canyon Loop Trail Project\Plans & Specs\SP 200 300 800 Sections 8.27.21.docx SP- 4 The CHPL graphics shall be warranted for a minimum of 10 years against fading, de- lamination and weather deterioration. P:\Documents\Park Projects\Canyon Loop Trail Project\Plans & Specs\SP 200 300 800 Sections 8.27.21.docx SP- 5 PART 3 CONSTRUCTION METHODS SECTION 300 - EARTHWORK 300-1 Clearing & Grubbing & Mobilization 300-1.3 Removal and Disposal of Materials 300-1.3.2 Requirements [Add the following]: (d) Miscellaneous In addition to the work outlined in Subsection 300-1 of the Standard Specifications, the following items of work are included under Clearing and Grubbing & Mobilization unless otherwise covered by a specific bid item. 1. Maintain dust control at all times by watering; including developing a water supply and furnishing and placing all water required for work done in the contract, including water used for extra work. 2. Provide for traffic control and all signs, barricades and flashers necessary to maintain proper control, in accordance with W.A.T.C.H. 3. Protection of utilities within the construction zone, except those shown on the plans and those specifically directed by the City Inspector to be removed or relocated. 4. Clearing and removal of debris from site of work. 5. Sediment and erosion control. 6. Other items of work as directed in these Special Provisions. 300-1.4 Payment [Add the following]: Unless otherwise specified, compensation for Clearing & Grubbing & Mobilization shall include full compensation for mobilization, traffic control, signs, barricades and flashers, and shall be paid for at the Lump Sum contract price and no additional compensation will be allowed. Payment shall include full compensation for furnishing all labor, materials, tools, equipment and doing all work involved in clearing and grubbing as specified. All other demolition required for this project shall cover under Clearing, Grubbing and Mobilization. 300-2 Unclassified Excavation Unclassified Excavation shall consist of grading the sides of the existing trail to achieve a minimum 5’-0” width to the trail. P:\Documents\Park Projects\Canyon Loop Trail Project\Plans & Specs\SP 200 300 800 Sections 8.27.21.docx SP- 6 300-2.6 Surplus Material [Add the following]: Excavated material shall thinly scattered in the immediate vicinity of the trail widening which is generating surplus materials. Care is required to minimize dumping significant volumes of soil on any existing native shrubs, but rather scattering surplus materials in a thin layer in the general, close-by areas. 300-2.9 Payment [Amend with the following]: Unclassified excavation shall include the fine grading of existing soil on one or both sides of the existing trail and the scattering of surplus materials in the immediate vicinity to establish grades shown on the plans. Payment for Unclassified Excavation shall be made per the Contract Unit Bid per Cubic Yard for Grading and shall include full compensation for all labor, materials, tools, equipment and incidentals required for completing this item of work. 300-4 Unclassified Fill 300-4.1 General [Add the following]: Unclassified Fill shall include all fill required to establish grades and construct slopes as shown on plans. Fill material shall consist of the on- site excavation material. 300-4.9 Measurement and Payment [Add the following]: Compensation for all work involving the construction of fills and embankments shall be considered as part of the operation being compensated as Unclassified Excavation. SECTION 301 - TREATED SOILS AND SUBGRADE PREPARATION 301-1 Subgrade Preparation 301-1.3 Relative Compaction [Add the following paragraph after the first paragraph]: The relative compaction requirements specified above shall apply unless higher relative compaction values are required in the Plans or Special Provisions. The higher value shall apply to the subgrade. 301-1.7 Payment [Replace with the following]: Payment for subgrade preparation shall be included in the appropriate Bid Form Line Items for Unclassified Excavation and no additional Payment shall be made. SECTION 303 - CONCRETE AND MASONRY CONSTRUCTION 303-1 Concrete Structures. 303-1.1 General [Add the following paragraphs]: Concrete structures shall conform to the provisions of the Standard Specifications as modified herein. P:\Documents\Park Projects\Canyon Loop Trail Project\Plans & Specs\SP 200 300 800 Sections 8.27.21.docx SP- 7 Reinforcing steel shall be Grade 60 billet steel conforming to ASTM A615. The surfaces of all concrete structures shall receive an ordinary surface finish. The CONTRACTOR shall furnish all labor, tools and materials to construct reinforced Portland Cement Concrete structures and appurtenant work to grades and dimensions shown on the Plans or staked in the field. 303-1.3 Forms [Add the following paragraphs]: Forms shall be braced to withstand the pressures developed and shall be tight to prevent the loss of mortar. 303-1.7 Placing Reinforcement 303-1.7.1 General [Add the following paragraph]: Aluminum and plastic supports for reinforcement shall not be used. Bars shall be accurately spaced as shown on the Plans. In no case shall the clear distance between parallel bars be less than 2-1/2 diameters of the bar, or a minimum of 2-inches. Unless otherwise shown on Plans, embedment of reinforcing steel (other than stirrups and spacers) shall be 1-1/2 inches clear depth for #8 bars or smaller, and shall be 2-inches clear for #9 bars and larger. Where placement of reinforcing steel requires alternate bars of different size, embedment requirements shall be governed by the larger bar. Stirrups and spacers shall be embedded not less than 1-inch clear depth. Measurement of embedment shall be from the outside of the bar to the nearest concrete face. Tack welding or butt welding of reinforcing bars will not be permitted. 303-1.7.2 Splicing [Add the following paragraph]: Reinforcing bars may be continuous at locations where splices are shown on the Plans, at the option of the CONTRACTOR. The location of splices, except where shown on the Plans, shall be determined by the CONTRACTOR, based upon using available commercial lengths where applicable. Splices shall consist of placing the reinforcing bars in contact and wiring them together in such a manner as to maintain the alignment of the bars and to provide minimum clearances. No lapped splices will be permitted at locations where the concrete section is not sufficient to provide a minimum clear distance of 2-inches between the splice and the nearest adjacent bar. The clearances to the surface of the concrete shall not be reduced. Where grade 60 reinforcing bars are required, the length of lapped splices shall be as follows: Reinforcing bars #8 or smaller shall be lapped at least 45 diameters of the smaller bar joined; and P:\Documents\Park Projects\Canyon Loop Trail Project\Plans & Specs\SP 200 300 800 Sections 8.27.21.docx SP- 8 Reinforcing bars #9, 10 and 11 shall be lapped at least 60 diameters of the small bar to be joined, except where otherwise shown on the plans. Splices of tensile reinforcement at points of maximum stress shall be avoided; however, any deviation from splices shown on the Plans shall be approved by the City Engineer. 303-1.8 Placing Concrete 303-1.8.1 General [Add the following paragraph]: The CONTRACTOR shall exercise caution in placement of concrete footings and congested areas to ensure proper consolidation and that there are no voids, and protection of water stops in position. Adequate provisions shall be made for easy visual inspection of concrete placement, consolidation and water stop protection. 303-1.11 Payment [Replace with the following] 303-1.11.1 Unclassified Excavation Payment for subgrade preparation shall be included in the appropriate Bid Form Line Items for Unclassified Excavation and no additional Payment shall be made. 303-1.11.2 Concrete Footings for Benches & Shade Shelters Payment for concrete footings shall be included in the appropriate Bid Form Line Items for those related items and no additional Payment shall be made. 303-1.11.3 Concrete Cobble Swales Payment for Concrete Cobble Swales shall be made per the Contract Unit Bid per Lineal Foot for Concrete Cobble Swales and shall include full compensation for all labor, materials, tools, equipment and incidentals required for completing this item of work. 303-1.11.4 Drainage Crossing Payment for Drainage Crossing shall be made per the Contract Unit Bid per Each for Drainage Crossing and shall include full compensation for all labor, materials, tools, equipment and incidentals required for completing this item of work. 303-1.11.5 Grouted Rip Rap Payment for Grouted Rip Rap shall be made per the Contract Unit Bid per Each for Grouted Rip Rap and shall include full compensation for all labor, materials, tools, equipment and incidentals required for completing this item of work. 303-1.11.6 Gabion Walls Payment for Gabion Walls shall be made per the Contract Unit Bid per Lump Sum for each of four Gabion Walls #1, #2, #3, & #4 (as indicated on the Plans) and shall include full compensation for all labor, materials, tools, equipment and incidentals required for completing this item of work. P:\Documents\Park Projects\Canyon Loop Trail Project\Plans & Specs\SP 200 300 800 Sections 8.27.21.docx SP- 9 SECTION 305 – TIMBER CONSTRUCTION 305-2 TIMBER STRUCTURES AND TIMBER CONSTRUCTION 305-2.2.1 Materials for Timber Steps Payment for Timber Steps shall be made per the Contract Unit Bid per Lump Sum for Timber Steps Numbers 1-26 (as indicated on Plans) and shall include full compensation for all labor, materials, tools, equipment and incidentals required for completing this item of work. 305-2.2.2 Handrails at Timber Steps Payment for Handrails, as a component of the Timber Steps shall be included in the Bid Form Line Items for Timber Steps and no additional Payment shall be made. 305-2.2.3 Trail Water Diverter Payment for Landscape Ties, as a component of the Trail Water Diverter shall be included in the appropriate Bid Form Line Items for Trail Water Diverter and no additional Payment shall be made. 305-2.2.1 Materials for Post & Rail Fence Payment for Post & Rail Fence shall be made per the Contract Unit Bid per Lineal Foot for Post & Rail Fence and shall include full compensation for all labor, materials, tools, equipment and incidentals required for completing this item of work. SECTION 312 – PRE-MANUFACTURED ITEMS 312-1 PRE-MANUFACTURED ITEMS 312-1.1 Benches: Unless otherwise specified, compensation for Benches shall be included in the Contract Unit Price Bid for Benches per Each in the Proposal Bid Form and shall include full compensation for furnishing all labor, materials, tools, equipment and doing all work involved in completing this item of work. 300-1.2 Shade Shelters: Unless otherwise specified, compensation for Shade Shelters shall be included in the Contract Unit Price Bid for Shade Shelters per Each in the Proposal Bid Form and shall include full compensation for furnishing all labor, materials, tools, equipment and doing all work involved in completing this item of work. 300-1.3 Educational Signs: Unless otherwise specified, compensation for Educational Signs shall be included in the Contract Unit Price Bid for Educational Signs per Each in the Proposal Bid Form and shall include full compensation for furnishing all labor, materials, tools, equipment and doing all work involved in completing this item of work. P:\Documents\Park Projects\Canyon Loop Trail Project\Plans & Specs\SP 200 300 800 Sections 8.27.21.docx SP- 10 PART 8 LANDSCAPING AND IRRIGATION SECTION 800 – LANDSCAPE AND IRRIGATION MATERIALS 800-1 Landscaping Materials 800-1.1 Topsoil 800-1.1.1 General. Existing soil shall be used throughout the trails improvement work. All disturbed areas from trails grading/widening shall be lightly scarified with metal rakes just prior to hand broadcasting/hydroseeding, using all native soils. SECTION 801 – LANDSCAPE AND IRRIGATION INSTALLATION 801-1 General Work shall consist of the construction of trail improvements, followed by fine grading all disturbed areas prior to hand-broadcasting/hydroseeding of native seed mix application. No irrigation system installations is a part of this project. 801-2 Earthwork and Topsoil Placement 801-2.1 General [Add the following paragraph]: All disturbed areas from trail widening/re-grading shall be lightly scarified with metal rakes just prior to hydroseeding. All soil generated from trail grading/widening shall be thinly scattered in the immediately- adjacent areas, as directed by the City Inspector. No import or export of soil is required. 801-4 Planting 801-4.1 General [Add the following]: The CONTRACTOR shall notify the City Inspector at least 48 hours in advance of needed inspections. 801-4.6 Native Seed Planting [Add the following paragraphs]: All areas disturbed by the trails work shall receive an evenly hand-broadcast S&S Basic Native Erosion Control Mix at the rate of 32 lbs. per acre. Immediately following the broadcast of seed, apply hydroseed mulch of Matrix’ Bonded Fiber Matrix (BFM) at 2,500 lbs. per acre. P:\Documents\Park Projects\Canyon Loop Trail Project\Plans & Specs\SP 200 300 800 Sections 8.27.21.docx SP- 11 To prevent the spread of noxious weeds, all heavy equipment (e.g., backhoes, dozers, excavators, water trucks) boots and hand tools (e.g., shovels, saws, hand clippers, pruners) shall be cleaned prior to entering job site. Any transport vehicles (e.g., cars, pickups, vans) that have operated in an off-road area since that vehicle’s last washing shall be cleaned prior to entering job site. Cleanings shall include: wheels, undercarriages, dozer belly pans, bumpers, and all parts of vehicles and heavy equipment. All washing must take place where rinse water is appropriately filtered or otherwise collected and disposed of ion either a sanitary sewer, landfill or other authorized facility outside the job site. A written daily log shall be kept on the decontamination of all equipment and vehicles. The log must be submitted to the City each week. 801-8 Measurement and Payment [Add prior to the first paragraph]: Native Seed Mix Planting: The payment for all materials, equipment and installation of the Native Erosion Control Mix/hydroseed operation shall be included in the Contract Unit Price Lump Sum Bid for Hydroseeding Native Erosion Control Mix in the Proposal Bid Form and shall include full compensation for all labor, materials, tools, equipment and incidentals required for completing these items of work.