Title
Report regarding a resolution awarding a construction contract to JDB and Sons Construction, Inc. of San Francisco, California, for Sanitary Sewer Spot Repair and Rehabilitation Project (No. SS2502, Bid No. 2707) in an amount not to exceed $1,397,850 and related actions. (Jeffrey Chou, Senior Civil Engineer)
label
RECOMMENDATION
Recommendation
Staff recommends that the City Council adopt a resolution awarding a construction contract to JDB and Sons Construction, Inc. of San Francisco, California, for Sanitary Sewer Spot Repair and Rehabilitation Project (No. SS2502, Bid No. 2707) in an amount not to exceed $1,397,850 authorizing a total construction contract authority budget of $1,684,400 and authorizing the City Manager to execute the agreement on behalf of the City; and approving associated Budget Amendment Number 26.040.
Body
BACKGROUND/DISCUSSION
The Sanitary Sewer Spot Repair and Rehabilitation Project (Project) is part of the City's ongoing program to rehabilitate or replace its aging sewer system and eliminate potential health hazards to the public.
Earlier this year, sewer lines were thoroughly cleaned and inspected as part of the Citywide Sewer Inspection Program. These inspections identified areas of concern where the sewer lines have deteriorated over time and may be at risk of blockages, leaks, or collapse. The rehabilitation work included in this Project will address these deficiencies, helping to restore the system’s integrity and extend the life of the pipes.
This Project will focus on replacing the identified damaged and deteriorated sewer segments within the Winston Serra neighborhood, located in the northeastern part of the City (see Attachment 1 - Vicinity Map). This area is also scheduled to receive a surface seal treatment in Summer 2026. By completing the sewer repairs in advance, the Project will ensure the underlying infrastructure is in good condition before the roadway improvements begin, preventing future rework and avoiding the need to disturb newly sealed roads.
The Project involves approximately 2,015 linear feet of open trench replacement, 900 linear feet of pipe bursting, and 81 point-repair locations. The rehabilitation methods are described below:
• Open Trench Replacement:
This method involves excavating a trench-typically two to four feet wide-to the depth of the damaged pipe and replacing the entire pipe segment with new piping. Once the repair is completed, the trench is backfilled, compacted, and paved to match the existing pavement section.
• Pipe Bursting:
A trenchless replacement technique that fractures the existing pipe while simultaneously pulling a new pipe into place. This method significantly reduces pavement disturbance and restoration needs compared to traditional excavation.
• Point Repair:
Point repairs focus on addressing isolated defects. This involves excavating a small trench-typically 5 to 10 feet in length-at the damaged section of pipe and replacing only the deficient portion with new piping.
City staff and the contractor will work closely to minimize impacts on nearby businesses, schools, and residents. During construction, residents may notice noise, dust, vibration, parking restrictions, and large equipment. Temporary road or sidewalk closures may be necessary, and advance notice will be provided before work begins. Driveway and business access will be maintained at all times, and there will be no anticipated interruptions to sewer service during the work.
By proactively addressing these sewer issues, the City aims to prevent emergencies, minimize disruptions to residents, and improve the overall reliability of the sanitary sewer system. This project is part of the City’s ongoing commitment to maintaining safe, resilient, and efficient infrastructure that supports both the community’s health and quality of life.
Bid Process and Results
The Project was advertised using formal bid procedures for public projects greater than $200,000 in accordance with the City’s purchasing policy, which falls under Procurement Type 1: Competitive Bidding for Construction Projects. For more details on the City’s Procurement Process, refer to Attachment 2.
This procedure awards the contract to the lowest responsive and responsible bidder.
Staff advertised a notice inviting bids for the Project on November 3 and November 6, 2025. On November 21, 2025, staff received fourteen (14) bid proposals in response to the notice inviting bids. Staff reviewed all bid proposals and identified that the lowest responsible bidder was JDB and Sons Construction, Inc. of San Francisco, California. Staff has verified the low bidder’s current contractor’s license with the California State Licensing Board and found it to be in good standing.
The selection of award of a contract is based on the lowest responsive bid for the “Base Bid” schedule.
The following is a summary of all bids received:
|
Rank |
Contractor |
"Base Bid" Results |
|
1 |
JDB and Sons Construction, Inc. of San Francisco, CA |
$1,397,850 |
|
2 |
Casey Construction, Inc. of Emerald Hills, CA |
$1,485,442 |
|
3 |
A3 Pipeline of San Francisco, CA |
$1,647,777 |
|
4 |
Westland Contractors, Inc. of San Francisco, CA |
$1,722,070 |
|
5 |
WestRock Engineering of San Francisco, CA |
$1,782,980 |
|
6 |
BuildCorp Inc of San Francisco, CA |
$1,798,000 |
|
7 |
Devaney Engineering, Inc. of San Francisco, CA |
$1,897,690 |
|
8 |
Koios Engineering Inc. of San Francisco, CA |
$1,924,655 |
|
9 |
JMB Construction Inc. of South San Francisco, CA |
$1,925,580 |
|
10 |
APB GENERAL ENGINEERING of San Pablo, CA |
$2,168,090 |
|
11 |
EPS Inc. of San Mateo, CA |
$2,373,219 |
|
12 |
Cratus, Inc. of San Francisco, CA |
$2,373,710 |
|
13 |
K.J. Woods Construction Inc. of South San Francisco, CA |
$2,388,000 |
|
14 |
Glosage Engineering Inc. of Richmond, CA |
$2,700,752 |
|
|
|
Engineers Estimate (by Wilsey Ham) |
$2,000,000 |
JDB and Sons Construction, Inc. submitted a bid that is approximately 30% lower than the Engineer’s Estimate. Upon review, staff determined that the bid is competitive and not materially unbalanced.
Staff recommends awarding the “Base Bid” to JDB and Sons Construction, Inc.
The proposed project construction budget is:
|
JDB and Sons Construction, Inc.’s Construction Contract |
$ 1,397,850 |
|
Construction Contingency (20%) |
$ 286,550 |
|
Total Project Construction Budget |
$ 1,684,400 |
The construction contingency will be used for any additional costs related to design changes during the construction operations. There are no Disadvantaged Business Enterprise (DBE) requirements since no federal funds are being utilized on the Project.
FISCAL IMPACT
The Project (CIP No. SS2502) is included in the City of South San Francisco’s Fiscal Year 2025-26 Capital Improvements Program.
Budget Amendment Number 26.040 will amend the current CIP to transfer $2,000,000 in Sewer Enterprise Funds from CIP No. SS2001. CIP No. SS2001 is a legacy sanitary sewer rehabilitation project with unspent funds that can be reallocated to support this Project.
The proposed project expenses and budget are detailed below:
|
Purpose |
Estimated Costs |
|
Design Budget |
$ 300,000 |
|
Construction Budget |
$ 1,684,400 |
|
Construction Management and Inspection |
$ 400,000 |
|
Miscellaneous (including staff time) |
$ 115,600 |
|
Total Expenses |
$ 2,500,000 |
|
Funding Source |
Amount |
|
Sewer Enterprise Fund |
$ 500,000 |
|
Sewer Enterprise Fund (Budget Amendment Number 26.040) |
+$ 2,000,000 |
|
Total Project Budget |
$ 2,500,000 |
RELATIONSHIP TO STRATEGIC PLAN
Approval of this action will contribute to the City’s Strategic Plan outcome of improved Quality of Life by maintaining and improving infrastructure to serve the public.
CONCLUSION
Awarding the construction contract to JDB and Sons Construction, Inc. of San Francisco, California, for the Sanitary Sewer Spot Repair and Rehabilitation Project will help ensure the City’s sanitary sewer system remains reliable, reduces the risk of failures, and supports long-term infrastructure integrity.
ASSOCIATED DOCUMENTS
Attachment 1 - Vicinity Map
Attachment 2 - Overview of City’s Procurement Process