State Route 12 Pavement Rehabilitation Project
3 Documents in Project
Summary
SCH Number
2026061115
Lead Agency
California Department of Transportation, District 4
(DOT)
Document Title
State Route 12 Pavement Rehabilitation Project
Document Type
NOD - Notice of Determination
Received
Posted
10/27/2026
Document Description
This project proposes to rehabilitate pavement, restore drainage systems, and enhance multimodal access on state route (SR) 12 in Napa County, postmile (PM) 0.0/3.31 and in Solano County, PM 0.0/7.90. The goal of this project is preserve and extend the service life of the pavement by addressing significant pavement cracks along the SR 12, in addition to restoring drainage system capacity, providing updates to pedestrian and bike infrastructure, and additional highway improvements such as replacement of road signs and guardrail.
Contact Information
Name
Matthew Coughlin
Agency Name
Caltrans, District 4
Job Title
Environmental Scientist
Contact Types
Lead/Public Agency / Project Applicant
Phone
Location
Coordinates
Cities
Fairfield, Suisun City
Counties
Napa, Solano
Regions
Countywide, Northern California
Cross Streets
Napa County: Airport Blvd and Broadway Blvd. Solano County: SR 12 and Pennsylvania Ave
Zip
94503
Total Acres
N/A
State Highways
SR 12, I-80, SR 29, I-680,SR 221
Railways
Suisun Fairfield Rail Station
Airports
Napa County Airport
Schools
Crystal Middle School, Crescent Elementary School, Rainbow Early
Waterways
Fagan Creek, Suisun Marsh, Green Valley Creek, Suisun Creek, Union Creek
Township
N/A
Range
N/A
Section
N/A
Base
N/A
Other Location Info
The project location is divided into two segments of State Route (SR) 12 within Napa and Solano Counties. In Napa County, the project area begins at SR 12 postmile 0.0. which is located at the intersection of SR 12 and SR 29, just west of Napa County Airport, and continues eastward until SR 12 intersects with I-80. The Solano County portion of the project area begins at the intersection of SR 12 and I-80 in Solano County, near the Solano County Dept. of Agriculture office. The Solano County portion continues eastward on SR 12 and concludes at SR 12 post mile 7.90, just beyond the intersection of Walters Rd and SR 12.
Notice of Determination
Approving Agency
Caltrans, District 4
Approving Agency Role
Lead Agency
Approved On
Determinations
(1) The project will have a significant impact on the environment
No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
No
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
No
(4) A mitigation reporting or monitoring plan was adopted for this project
No
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
No
Attachments
Notice of Determination
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