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2026 Culvert Replacement Program

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State & Local

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

AI Contract Overview

The Sonoma County Department of Transportation and Public Works is preparing to replace fifteen deteriorating culverts under its 2026 Culvert Replacement Program, prioritizing those with trench plates to improve drainage and road integrity. The project involves the complete removal of existing culverts and installation of new ones at specified locations along Annapolis Road, Austin Creek Road, Dupont Road, Eastside Road, Green Valley Road, King Ridge Road, Moscow Road, Pine Flat Road, Rio Linda Avenue, St. Helena Road, Wilfred Avenue, and Wilshire Drive. Work will include structural excavation, placement of replacement culverts, construction of cut-off walls, and application of rock slope protection where necessary. Trenches will be backfilled, new hot mix asphalt will be laid, and road striping will be repainted. Water diversion measures will be implemented if groundwater or runoff threatens curing concrete, and all sites will feature erosion and sediment control best management practices. No trees will be removed, but limited pruning and vegetation clearance may occur to enable safe access. The project is classified as exempt from County Wide Utility and Right of Way/General Plan requirements due to its nature as maintenance. The program is publicly forecasted with a posted date of June 5, 2026, and primary coordination is handled by David Walsh, Senior Environmental Specialist, with additional contact through Sonoma County Public Infrastructure.

General Info

Replace 15 culverts on 12 roads with drainage improvements, no tree removal, exempt maintenance project.

Agency

California → Sonoma County

NAICS

237310 - Highway, Street, and Bridge ConstructionView NAICS

Place of Performance

CA, 95403

Set-Aside

NONE

Documents

(1)

2026 Culvert Replacement Program Notice of Exemption

PDF•notice-of-exemption

AI Contract Breakdown

Uniform Contract Format

Timeline

PostedJun 5

forecast

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Organization & Contact Information

AgencyCalifornia → Sonoma County

Contacts2 people available

OfficeN/A

Organization / Agency

California → Sonoma County

Office AddressN/A

Contacts

David WalshSenior Environmental Specialist

contact@example.gov

+1 (555) 000-0000

Sonoma County Public InfrastructureApplicant

contact@example.gov

+1 (555) 000-0000

Full Description

The Sonoma County Department of Transportation and Public Works 2020 Culvert Replacement Program entails removal of existing deteriorating culverts and installing replacement culverts prioritizing those with trench plates. Twelve culverts will be replaced: 1) Annapolis Road PM.12.28 38.710452; -123.409538 2) Austin Creek Road PM.14.48 38.515206; -123.079809 3) Austin Creek Road PM.14.50 38.515686; -123.079622 4) Dupont Road PM.10.20 38.41922; -122.927392 5) Eastside Road PM.12.85 38.524357; -122.847859 6) Green Valley Road PM.15.19 38.444538; -122.89215 7) King Ridge Road 2609 38.542157;-123.090386 8) King Ridge Road 2604 38.542199; -123.089413 9) Moscow Road PM. 11.41 38.4657; -123.03556 10) Pine Flat Road PM.1301 38.699169; -122.780609 11) Rio Linda Avenue PM.12.83 38.623661; -122.830534 12) St. Helena Road PM.13.76 38.520107; -122,597575 13) Wilfred Avenue PM.9.77 38.363272; -122745597 14) Wilshire Drive PM.10.24 38.51444; -122.71228 15) Wilshire Drive PM.10.38 38.363272; -122.71316 This project consists of structural excavation to remove existing cross culverts, installation of replacement cross culverts, cut-off walls, and rock slope protection, as needed. Trenches will be backfilled, hot mix asphalt placed, and striping painted. If water is present at the worksite or has the potential to come into contact with curing concrete, a water diversion plan will be implemented. Erosion and sediment control BMPs will be used and installed at each worksite. No trees will be removed during construction; however, some pruning and ground vegetation may be required to access the work sites. County Wide Utility and/or Right of Way/ General Plan: exempt due to maintenance