STAFF REPORT TO THE CITY COUNCIL
DATE: Regular Meeting of September 9, 2025
TO: Mayor and Members of the City Council
VIA: Dante Hall, City Manager
SUBMITTED BY: Glenn Dombeck, Public Works Director/City Engineer SUBJECT: Award of a Construction Contract to E.E. Gilbert Construction, Inc. for the Bay Trail Soil Nail Wall Sinkhole Repair Project and Appropriating $17,756.60 from the SB1 RMRA Fund to Fully Fund the Contract
RECOMMENDATION ACTION:
Adopt a resolution authorizing the City Manager to execute a construction contract with E.E. Gilbert Construction, Inc. in the amount of $77,505.60 for the Bay Trail Soil Nail Wall Sinkhole Repair Project authorizing an additional expenditure of up to $7,751 for a 10% contingency on said construction contract, for a total not to exceed contract amount of $85,256.60 and appropriating $17,756.60 from the SB1 RMRA Fund to fully fund the Contract work.
BACKGROUND:
The Bay Trail Soil Nail Wall Sinkhole Repair Project was advertised for bids in the West County Times on July 14th and 21st, 2025 and in 5 regional plan rooms. A total of 6 bids were received at the bid opening deadline of 2 pm on Tuesday, August 12, 2025. Upon opening and reviewing the 6 bids received, E.E. Gilbert Construction, Inc. submitted the low bid in the amount of $77,505.60, which was determined to be responsive.
E.E. Gilbert Construction, Inc. is based in Martinez, has been in business for 77 years, and has general building experience on public works projects, including in Rodeo, Mill Valley, Napa County, Vacaville, and Martinez. Their references and bid were thoroughly checked. E.E. Gilbert Construction, Inc. was determined to be a responsible bidder.
The project consists of the construction of a repair to a sinkhole that formed on a private property adjacent to the retaining wall on the Bay Trail. The retaining wall is a soil nail wall construction and requires restoration of the sinkhole to protect the integrity of the retaining wall. The work will add a concrete filled trench at the base of the retaining wall to prevent future sinkhole development. The site above the retaining wall will be backfilled and the associated drainage features will be restored.
Bidder's Name
Bid Proposal
1 E.E. Gilbert Construction, Inc.
$ 77,505.60
2 FJ&I Engineering, Inc.
$ 83,420.00
3 Michael Roberts Construction, Inc.
$ 84,671.27
4 Valentine Corporation
$ 103,369.00
5 American Enviro Services, Inc.
$ 137,510.40
6 Kerex Engineering, Inc.
$ 179,315.00
Construction is anticipated to take approximately two-and-a-half months following notice to proceed. Following the award of the construction contract, staff will meet with the contractor to firm up the schedule. Construction management for this project will be handled by CSWST2 who also prepared the project plans and specifications. CSWST2 will handle contract administration, invoicing and management of the project through the closeout phase.
ANALYSIS:
The project is categorically exempt from the California Environmental Quality Act (CEQA) pursuant to CEQA Guidelines Section 15301, Existing Facilities, which consists of the operation, repair, maintenance, permitting, leasing, licensing, or minor alteration of existing public or private structures, facilities, mechanical equipment, or topographical features, involving negligible or no expansion of existing or former use.
FISCAL IMPACT:
The proposed budget for the Bay Trail Soil Nail Wall Sinkhole Repair Project is as follows:
Funding Sources:
SB1 RMRA $100,000
Total Revenue $100,000
Expenditure accounts:
Construction Contract $ 77,505.60
10% Contingency $ 7,751.00
Engineering Services During Construction (CSWST2) $ 32,500.00 Total Expenditures $ 117,756.60
This project was identified in the 2025 Capital Improvement Program along with other Facilities and Parks improvements. In anticipation of the associated cost, SB1 RMRA funds have been allocated to generate the required funding resources. However, despite this advanced financial planning, there remains insufficient funding available to cover the cost related to this contract and the supporting construction management contract.
To address this funding gap, it is proposed that an additional $17,756.60 of SB1 RMRA funds, originally appropriated from the Foxboro Pavement Rehabilitation Project, be redirected to fully fund the contract. The Foxboro Pavement Rehabilitation Project currently has adequate funds to cover the design phase work planned this fiscal year, even with the proposed budget transfer.
ATTACHMENTS:
Resolution
Bay Trail Soil Nail Wall Sinkhole Repair Project – Location Map Financial Impact
Description: Expenditure amount not to exceed $117,756.60 Funding Source:
SB1 RMRA Fund Fund No. 268 $100,000 Bay Trail
SB1 RMRA Fund Fund No. 268 $17,756.60 Foxboro Paving Budget Recap:
Total Estimated cost: $117,756.60 New Revenue: $
Amount Budgeted: $117,756.60 Lost Revenue: $
New funding required: $ New Personnel: $
Council Policy Change: Yes No