HomeMy WebLinkAboutChange Order #2 Final 12.28.22CONTRACT CHANGE ORDER
CHANGE ORDER NO._2___ DATE: _12.28.22 ORIGINATED BY: Parks & Recreation Department
CITY PROJECT NO. _FP17500_______
PROJECT TITLE: _Canyon Loop Trail Improvement Project__
CONTRACTOR: ___DD Systems Inc.__(Attn. Danny Daher)______
_147 W. Route 66, #431___________________
_Glendora, CA 91740______________________
NOTICE TO PROCEED DATE: __10.17.22__SCHEDULED COMPLETION DATE: _1.25.23___
ORIGINAL CONTRACT AMOUNT:$___674,377.50____________
CONTINGENCY AMOUNT AUTHORIZED BY COUNCIL:$_101,156.00___
TOTAL CONTRACT AUTHORIZATION:$_775,533.50_________________
TOTAL AMOUNT OF CONTRACT PRIOR TO THIS CONTRACT CHANGE ORDER: $_707,733.00
CONTRACTOR IS AUTHORIZED TO MAKE THE FOLLOWING CHANGES:
REMOVED FROM SCOPE:
1.Removal of all 3rd tier cages on Gabion Wall #3, as the grades behind this Gabion Wall do
not warrant the additional height, this will delete the installation of (41) 12” high cages, and (11)
24” high cages. Credit to the City for labor costs of $1,959.72.
2.Please see Location #4 on attached plan (11x17 version) / Westerly-End of Trail
Improvements
A. Delete the Concrete Swale as indicated on the approved Plans that wraps around the
backside of the Oak Tree grove, as indicated on the Approved Plans / 71 LF
B. Delete the Velocity Reducer as indicated on the approved Plans for the above-described
location / 5 SF
ADD TO SCOPE:
1.Add three Gabion cages to east end Gabion Wall #1 as discussed on 12.19.22 during site
walk. Cost to the City $322.23
2.Please see Location #3 on attached plan (11x17 version). Westerly-End Timber Steps
Complex
21810 COPLEY DRIVE
DIAMOND BAR, CA 91765-4177
909-839-7070 FAX 909-861-3117
A. Install Concrete Swale directly adjacent to the north side of the timber step
improvements, running the full length of the timber steps complex / Estimated at 80 LF. ($92.43
per L.F.)
B. Customize the design of the Velocity Reducer at the extreme west end of the trail
improvement project / timber step complex as follows:
-Start at Concrete Swale’s low end @ 4’ wide, widened to 14’ wide, and is to be 10’ long /
90 SF. Cost to the City (102sq.ft x $420.00) $42,840
-Quarry Stone Rubble pressed deeply into a 12” deep concrete base slab (See Detail #5 on
Title Sheet of approved Plans).
3.Add “Splash Wall” at the west end of Gabion Wall #1 concrete swale; installing GROUTED
rip-rap (in a similar manner as velocity reducer detail), from end of concrete swale to edge of trail
/ and trail water diverter, with timber-tie edges (per current contracted improvements). Slope rip
rap towards end of concrete swale to act as a splash wall.
THE AMOUNT OF THE CONTRACT WILL BE INCREASED DECREASED UNCHANGED
BY THE SUM OF:
$41,202.51
THE CONTRACT PERIOD WILL BE:
DECREASED DAYS INCREASED _ _ DAYS UNCHANGED
CURRENT CONTRACT TOTAL INCLUDING THIS CHANGE ORDER: $_748,935.51__
REVIEWED BY: APPROVED BY:
PROJECT MANAGER
Ryan Wright Initials Date Danny Daher, DD Systems Date
CITY ENGINEER
David G. Liu, P.E. Initials Date Dan Fox, CITY MANAGER Date