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San Joaquin County Department of Public Works

1810 E Hazelton Ave, Stockton, CA 95205-6232
(209) 468-3000 

The overall mission of the San Joaquin County Department of Public Works is to plan, design, construct, operate and maintain the County infrastructure, which includes public roads, transportation systems, bridges, water, wastewater, channel maintenance and solid waste disposal systems of the County, in order to best serve the interests of the people. These systems are maintained to protect the health and welfare of the public and the County’s financial investments. Public Works also provides vehicle support for the County, including procurement support, heavy and light vehicle maintenance and repair, and daily rental services.

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Upcoming Solicitations

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Fiscal Year 2026-2027 Job Order Contracts JOC-031, JOC-032 And JOC-033
A Job Order Contract is an indefinite quantity contract pursuant to which the Contractor may perform an ongoing series of individual Projects at different locations throughout San Joaquin County. The bid documents include a Construction Task Catalog® containing construction tasks with preset Unit Prices. All Unit Prices are based on local labor, material and equipment prices and are for the direct cost of construction.
 04/23/2026 08:31 PM UTC
Colonial Heights and Lincoln Village Water Main Replacement Project Phase 1B
The work is located within the Colonial Heights Maintenance District and Lincoln Village Maintenance District in Stockton, CA. The work, in general, consists of installing approximately 4,860 feet of new water mains along with necessary valves, fire hydrants, and various appurtenances within the Colonial Heights and Lincoln Village Maintenance Districts. In addition, water service laterals and connections will be relocated to the front of the properties. Existing water mains and services in residential backyards will be abandoned. There is no DBE Contract goal. Base Estimate Range Between $3,100,000 and $3,810,000
 04/30/2026 08:31 PM UTC
Liberty Road Improvements 2026
The work is located north of the City of Lodi. The work, in general, consists of minor widening, repairing and resurfacing approximately 3.5 miles of roadway with asphalt concrete. Base Estimate Range between $1,830,000 and $2,240,000
 05/07/2026 08:31 PM UTC
Groves Road and San Julian Road Resurfacing
The work is located North of State Route 4 near Farmington, California. The work, in general, consists of repairing and resurfacing approximately 0.9 mile of roadway with asphalt concrete. Base Estimate Range between $286,000 and $349,000
 05/07/2026 08:31 PM UTC
Waterloo Business Park Streets Resurfacing
The work is located east of the City of Stockton. The work, in general, consists of repairing and resurfacing approximately 1.1 miles of roadway with asphalt concrete. Base Estimate Range between $729,000 and $848,000
 05/07/2026 08:31 PM UTC
Chip Seal 2026
The work is located on various roads through San Joaquin County Supervisorial Districts 1, 3, 4, & 5. The work, in general, consists of chip sealing approximately 47 miles of various roadways throughout the County and is part of a seven-year cyclical Chip Seal Program. Base Estimate Range between $2,664,000 and $3,256,000
 05/07/2026 08:31 PM UTC
Oakwood Road Area Streets Resurfacing
The work is located southeast Stockton. The work, in general, consists of repairing and resurfacing approximately 3.5 miles of roadway with asphalt concrete. Base Estimate Range between $977,400 and $1,194,600
 05/07/2026 08:31 PM UTC
Sunnyside Estates Maintenance District Water Main Upgrade
The work is located within the Sunnyside Estates Maintenance District in Lodi, CA. The work, in general, consists of installing approximately 1,340 feet of new water main piping, including gate valves, fire hydrants, appurtenances, water service laterals, and water meters and boxes within the Sunnyside Estates Maintenance District. Additionally, a new water supply interconnection with the City of Lodi will be constructed. Base Estimate Range between $474,435 and $579,865
 05/14/2026 08:31 PM UTC
SJCDPW-RFP-26-1A
The San Joaquin County Department of Public Works (SJCDPW) requests technical proposals from qualified consultants (CONSULTANT) to undertake, perform, and complete the tasks set forth in Request for Proposals (RFP) – SJCDPW-RFP-26-01A. Selected CONSULTANT will perform professional and technical engineering services for the proposed Blossom Road Bridge 29C-116 and Elliot Road Bridge 29C-249 Scour Mitigation Projects (PROJECT). The selected CONSULTANT will be the highest-ranked CONSULTANT that has successfully negotiated the terms for award of a consultant services agreement. The selected CONSULTANT or team will be requested to enter into a consultant services agreement with San Joaquin County (County) for each project. The PROJECT is federally funded. All work shall comply with the County Policies, the Local Assistance Procedure Manual (LAPM), latest Caltrans Standard Plans and Specifications, AASHTO latest release of its Highway and Street Design “Green Book”, HEC 23 for countermeasure design for bridge scour and stream instability, and the most recent guidelines for the Federal Highway Bridge Program (HBP). The requested professional design engineering services shall include, but will not be limited to, the following: Project Management, Project Surveying, Mapping and Control, Environmental Clearance, Hydraulic and Hydrology Analysis, Permitting Compliance, Utility Coordination and Relocation Plan, Right-of-Way Engineering, Plans, Specifications, and Engineer's Estimate (PS&E), and Bidding and Post Award Assistance services for the PROJECT The deadline for submitting technical proposals to SJCDPW will be no later than 4:00 p.m. on Monday, May 18, 2026. A copy of SJCDPW-RFP-26-01A is available to view at the Internet address: https://www.sjgov.org/department/pwk/rfps_and_rfqs and https://www.bidexpress.com . All prospective consultants must register for solicitation No. SJCDPW-RFP-26-01A in order to be added to the Proposers’ List and, if necessary, receive a Notice of Release of Addendum. It is imperative that prospective consultants check the solicitation Web page often for the status and/or modifications. For general questions regarding the solicitation, please contact Mr. Nhan Tran, Management Analyst II at email: ntran@sjgov.org .
05/18/2026 11:00 PM UTC
9 Solicitations

Closed Solicitations

Number Deadline
Countywide Traffic Signal Equipment Upgrade Project
The work is located at various intersections throughout the County. The work, in general, consists of removing and replacing existing traffic controllers, and installing video detection systems to replace vehicle loop detectors. Pursuant to the Public Contract Code Section 3400 (c)(2), the Department has designated the Miovision Video Detection System (VDS), including associated products listed in the plans and specifications, as the exclusive VDS for the project. This specification is necessary to complement VDS equipment currently in use throughout the County on existing public improvements. This will ensure compatibility with the County’s existing signal infrastructure, allows for interchangeability with products in the County’s maintenance inventory and is essential for seamless logistical and operational integration with the existing highway facilities Base Estimate Range between $1,500,000 and $1,825,000
 08/07/2025 08:31 PM UTC
Cotta Road Bridge No. 29C-471 Replacement at Upland Canal, Federal Aid Project No. BRLO-5929(234).
The work is located on Cotta Road Bridge (Bridge No. 29C-292/Bridge No. 29C-471) over Upland Canal, east of N. Guard Road. The work, in general, consists of demolishing the existing bridge (Bridge No. 29C-292), constructing a new 2-lane structure (Bridge No. 29C-471) with necessary appurtenances, reconstructing approach roadways to conform with the new concrete structure, conforming driveways, and placing rock slope protection in the canal. The DBE Contract goal is 21 percent Base Estimate Range Between $2,170,330 and $2,655,000
 07/24/2025 08:31 PM UTC
SJCDPW-RFP-25-04
The San Joaquin County Department of Public Works (SJCDPW) requests technical proposals from qualified consultants to undertake, perform, and complete the tasks set forth in Request for Proposals (RFP) – SJCDPW-RFP-25-04. The selected CONSULTANT will perform professional and technical engineering services for the proposed Waverly Road Bridge 29C-368 Across Chanel B Replacement (PROJECT). The requested professional design engineering services shall include, but will not be limited to, the following: Project Management, Project Surveying, Mapping and Control, Evaluation of Bridge Type Selection/Roadway Alignment, Public Outreach Program, Geotechnical Analysis Report, CEAQ Approval, Hydraulic and Hydrology Analysis, Permitting Compliance, Utility Coordination and Relocation Plan, Right-of-Way Engineering, Plans, Specifications, and Engineer's Estimate (PS&E), and Bidding and Post Award Assistance services for the PROJECT. The deadline for submitting technical proposals to SJCDPW will be no later than 4:00 p.m. on Monday, July 21, 2025. A copy of SJCDPW-RFP-25-04 is available to view at the Internet address: https://www.sjgov.org/department/pwk/rfps_and_rfqs and https://www.bidexpress.com . All prospective consultants must register for solicitation No. SJCDPW-RFP-25-04 in order to be added to the Proposers’ List and, if necessary, receive a Notice of Release of Addendum. It is imperative that prospective consultants check the solicitation Web page often for the status and/or modifications. For general questions regarding the solicitation, please contact Mr. Nhan Tran, Management Analyst II at email: ntran@sjgov.org .
07/21/2025 11:00 PM UTC
Koster Road Resurfacing
The work is located southeast of the City of Tracy. The work, in general, consists of repairing and resurfacing approximately 2.0 miles of roadway with asphalt concrete. Base Estimate Range between $750,000 and $920,000
 07/17/2025 08:31 PM UTC
Kingdon Area Roads Resurfacing
The work is located west of the City of Lodi. The work, in general, consists of repairing and resurfacing approximately 3 miles of roadway with asphalt concrete and earthwork in isolated areas for drainage ditches. Base Estimate Range between $1,134,000 and $1,386,000
 07/17/2025 08:31 PM UTC
SJCDPW-RFQ-25-04
The San Joaquin County Department of Public Works (SJCDPW) requests Statement of Qualifications (SOQ’s) from qualified and innovative Consultants to provide consulting engineering services for the full engineering design services for the Acampo Innovation Project (Project). The selected Consultant (Consultant) will be requested to enter into a Consultant Services Agreement with the San Joaquin County as set forth in this Request for Qualifications (RFQ).The Consultant shall be required to provide all labor, equipment, tools, and facilities necessary for the completion of the Project. The Cooper’s Corner area of San Joaquin County, near the unincorporated community of Acampo, experiences periodic flooding about once every 10 years on average due to changes in the upper watershed that occurred over generations. In response to flooding in 2017, a multiphase plan was developed entitled “Acampo Area Drainage Innovation Plan”. The first phase of the plan was completed in 2019 and consisted of a drainage system that intercepted drainage flowing into and from within the Cooper’s Corner community. The system was intended to reduce the frequency, severity, and duration of recurring shallow flooding within the community. Unfortunately, the area was again subject to significant inundation in 2023. The second phase of the plan will further flood risk reduction efforts by intercepting surface run-off upstream of this area and diverting it south towards the Mokelumne River and diverting a portion of the flows onto agricultural lands with suitable soil profiles. In addition to reducing flood risk for the Cooper’s Corner, the redirected run-off would improve groundwater conditions in the critically over-drafted Eastern San Joaquin groundwater subbasin. The Project consists of development of 100% engineering plans, specifications, environmental documents and engineers estimate of probable construction costs for drainage and water retention and recharge improvements to reduce the risk of severe flooding in the areas at east of California Highway 99 (SR 99) at Woodbridge Road, Acampo Road, and Peltier Roads which have experienced flooding and resulted in the temporary closure of SR 99 and the evacuation residents in the Cooper’s Corner area.
07/07/2025 07:00 PM UTC
SJCDPW-RFP-25-03
The San Joaquin County Department of Public Works (SJCDPW) requests technical proposals from qualified consulting firms to undertake, perform, and complete the tasks set forth in Request for Proposals – SJCDPW-25-03. The selected consulting firm (CONSULTANT) will perform professional and technical engineering services for the August Sustainable Community Plan (PLAN). The PLAN will focus on sustainable transportation improvements within the existing community related to local and regional multimodal transportation plans and connections. The PLAN will identify sustainable improvements that support accessible health, nutrition, education and human services, housing assistance, and employment opportunities within the August Community. The PLAN will focus on facilitating movement of people and goods between job centers and the community through alternative modes of transportation. The requested services will include extensive outreach, proposing complete street designs, evaluating circulation and making recommendations, and identifying investment strategies for construction of future improvements. The requested professional services shall include, but will not be limited to, the following: • Transportation demand forecasting and modeling • Multi-Modal Analysis • Pedestrians/Bicycle facilities development and analysis • Public Transit analysis and improvement recommendation • Extensive stakeholder outreach/meetings • Community Green Space development The deadline for submitting technical proposals to SJCDPW will be no later than 12:00 p.m. on Monday, June 30, 2025. A copy of SJCDPW-RFP-25-03 is available to view at the Internet address: https://www.sjgov.org/department/pwk/rfps_and_rfqs and https://www.bidexpress.com . All prospective consultants must register for solicitation No. SJCDPW-RFP-25-03 in order to be added to the Proposers’ List and, if necessary, receive a Notice of Release of Addendum. It is imperative that prospective consultants check the solicitation Web page often for the status and/or modifications. For general questions regarding the solicitation, please contact Mr. Nhan Tran, Management Analyst II at email: ntran@sjgov.org .
06/30/2025 11:00 PM UTC
Stephens Road Resurfacing
The work is located east of Stockton. The work, in general, consists of repairing and resurfacing approximately 0.61 mile of roadway with asphalt concrete. Base Estimate Range between $255,000 and $310,000
 06/26/2025 08:31 PM UTC
MacArthur Drive Resurfacing
The work is located adjacent to the City of Tracy. The work generally consists of repairing and resurfacing approximately 1.6 miles of roadway with asphalt concrete. A portion of the existing roadway will require milling (cold planing), shaping, and compaction (in-place) prior to resurfacing. Base Estimate Range between $833,000 and $972,000
 06/26/2025 08:31 PM UTC
Watkinson Road Resurfacing
The work is located in Acampo. The work, in general, consists of repairing and resurfacing approximately 1 mile of roadway with asphalt concrete, as well as replacing (3) cross-drain pipes. Base Estimate Range between $450,000 and $525,000
 06/26/2025 08:31 PM UTC
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