City Council
259 N. Wilma Avenue
Ripon, CA 95366
MEMO
To: Honorable City Council
From: Christiana Giedd, Associate Civil Engineer
Date: 09/12/2023
Subject: Fleet Maintenance Facility Change Order 5
RECOMMENDED ACTION:
Approve Change Order No. 5 for various contract changes related to unforeseen field conditions, electrical design changes, and new Modesto Irrigation District (MID) requirements in the not to exceed amount of $62,905 (funding sources: Corp Yard AB1600 Fund, Enterprise Capital Funds, and General Capital Fund).
BACKGROUND:
The Fleet Maintenance Facility Project was awarded to Diede Construction, Inc. at the December 13, 2022 City Council meeting for an amount of $11,156,000. The Fleet Maintenance Facility Project will involve the construction of a 12,500 square foot maintenance building and parking lot.
At the March 14, 2023 City Council meeting, Council approved Change Order No. 1 in the not to exceed amount of $288,622 for raising the elevation of the existing berm at the Wastewater Treatment Plant disposal ponds in order to provide additional storage capacity.
At the June 13, 2023 City Council meeting, Council approved Change Order No. 2 in the not to exceed amount of $1,466 for additional survey staking.
At the July 26, 2023 City Council meeting, Council approved Change Order No. 3 in the not to exceed amount of $132,150 for electrical revisions and revisions to accommodate SSJID, MID, and Fire Department requirements.
At the August 8, 2023 City Council meeting, Council approved Change Order No. 4 in the not to exceed amount of $4,889 for countertop leg panels, additional concrete for sidewalk, and filling an underground concrete pipe.
DISCUSSION:
The Fleet Maintenance Facility Project required design changes due to field conditions, electrical revisions, and requirements from Modesto Irrigation District (MID), as summarized below:
Project changes related to field conditions: The site has a large sand layer which resulted in additional materials being required for installing the stormwater pipe as compared to the detail shown in the bid package. The additional cost related to this change is $5,442.
Project changes related to electrical revisions: The bid drawings for the building interior had a discrepancy between the mechanical and electrical drawings. In order for the electrical design to meet the requirements of the mechanical design, additional conduit and wire is needed. An additional 20A breaker is also required for the project in the building. The additional cost related to these changes is $26,762.
Project changes related to MID requirements: A previous change order modified the exterior primary and secondary power connections. MID has issued additional requirements related to this previous change order for the primary power connection that includes two 4-inch conduits to be run to a pull box at the southern border of the site. The additional cost related to this change is $30,701.
The additional work is to be billed at a cost not to exceed $62,905.
FISCAL IMPACT:
The attached Change Order No. 5 is in the amount of $62,905 and will be allocated to the Corp Yard AB1600 Fund (47.0%), Water, Sewer and Storm Enterprise Capital Funds (15.8%) and General Capital Fund (37.2%). The amended construction contract price is shown in Table 1.
Table 1 – Current Contract Price
Amount
Original Contract Price $ 11,156,000
Change Orders (1-5) $ 490,032
Current Contract Price $ 11,646,032
Attachments:
1. CO 5