State Route 140 Mariposa Pavement Preservation

Project Description

The California Department of Transportation (Caltrans) proposes to extend the service life of State Route 140 from post miles 25.3 to 51.8 in Mariposa County and provide a smoother riding pavement surface by resurfacing the roadway with 0.25-foot of hot mix asphalt (Type A). The work would also replace non-standard guardrails and bridge approaches with concrete end blocks where appropriate. The project will install traffic monitoring devices such as traffic count stations, rumble strips and pavement delineation.

Location Map

Project Benefits


The purpose of this project is to preserve and extend the service life of the existing pavement and to provide a smoother driving pavement surface.


The existing pavement within the limits of this proposed project has deteriorated and is in need of rehabilitation.


Funding Source

State Highway Operation and Protection Program (SHOPP) Capital Preventive Maintenance (CAPM) 


Project Cost/Programmed

 Programed Project Cost Capital $ Support $
Project Approval & Environmental Document $0 $1,189,000
Plans, Specifications, & Estimates $0 $2,261,000
Right of Way $162,000 $35,000
Construction $24,334,000 $2,783,000


Projected Cost as of (June 8, 2023): Planned $ Expended $
Project Approval & Environmental Document $1,189,000 $1,014,000
Plans, Specifications, & Estimates $2,261,000 $1,385,000
Right of Way Support $35,000 $10,000
Construction Support $2,783,000 $0


Current Schedule

 Process Date
Project Study Report (M010) Summer 2016
Project Approval & Environmental Document (M200) Winter 2021
Right of Way Certification (M410) Summer 2022
Ready to List (M460) Summer 2022
Approved Construction Contract (M500) Summer 2023
Project Completion (M600) Summer 2024


Project Status

Construction is anticipated to begin in Spring 2023.


Project Contact

Caltrans District 10 - Public Information Office
Phone: (209) 948-7977



Final Environmental Document: Initial Study with Proposed Negative Declaration - October 2020 (PDF) 2,694 KB


Title VI Information

The California Department of Transportation (Caltrans) assures that no person shall, on the basis of race, color, or national origin, be excluded from participation in, be denied the benefits of, or be otherwise subjected to discrimination under any program or activity receiving Federal financial assistance, as required by Title VI of the Civil Rights Act of 1964, as amended, the Civil Rights Restoration Act of 1987, and Federal Executive Order 12898 (Federal Actions to Address Environmental Justice in Minority Populations and Low-Income Populations).

Caltrans will make every effort to ensure nondiscrimination in all of its programs and activities, whether they are federally funded or not, and that services and benefits are fairly distributed to all people, regardless of race, color, or national origin. In addition, Caltrans will facilitate meaningful participation in the transportation planning process in a nondiscriminatory manner.