Agenda #: 5.8
Meeting Date: May 16, 2023
TO: Honorable Mayor and Members of the City Council
FROM: Daniel Fox, City Manager
TITLE: NOTICE OF COMPLETION FOR THE DIAMOND BAR CENTER
SLOPE STABILIZATION PROJECT NO. FP20500.
STRATEGIC
GOAL: Safe, Sustainable & Healthy Community
RECOMMENDATION:
Approve, and authorize the Director of Public Works/City Engineer to file, the Notice of Completion.
FINANCIAL IMPACT:
The final cost from the construction contract agreement with Wright Construction Engineering Corp is $643,966.04. This amount is $10,060.96 under the total authorization amount of $654,027.00 approved by the City Council.
BACKGROUND/DISCUSSION:
The Diamond Bar Center site was originally graded in the mid to late 1970’s as part of the Summitridge Park improvements, with precise grading done in 2003 for the construction of the building pad. Following observation of minor distress, including potential footing and slab settlement along the north and northwest-facing slopes, an onsite geotechnical evaluation was conducted in 2017.
On July 7, 2020, the City Council awarded a consulting services contract to Hushmand Associates, Inc. for the design of DBC Slope Stabilization Project. On June 21, 2022, the City Council approved the plans and specifications.
On September 20, 2022, the City Council awarded a construction contract to Wright Construction Engineering Corp. with a total authorization amount of $654,027. The City issued the Notice to Proceed for construction on September 28, 2022.
Wright Construction Engineering Corp completed all required work in March 2023.
There were two (2) approved Change Orders associated with this Construction Contract Agreement and one reimbursement:
1) A change order in the amount of $17,335.97 to rent decorative hedge walls/draping panels to screen construction activities from center event, additional concrete v-ditch demolition, and concrete drainage replacement; 2) A change order in the amount of $34,089.08 to add fire suppression wiring and conduit work, additional subgrade work within the patio area, and additional rental time for the decorative hedge walls/draping panels; and 3) Reimbursement to the City in the amount of $2,029.01 for damages to the City’s fiber connection at the Diamond Bar Center.
PREPARED BY:
REVIEWED BY:
Attachments:
1. 5.8.a Notice of Completion - DBC Slope Project (CIP# FP20500)