Caltrans District 5 Maintenance Station and Equipment Shop Relocation Project

Project Description

The proposed project involves the construction and operation of a replacement District 5 Maintenance Station, Equipment Shop, and associated site improvements on 56.5 acres of state-owned property located at 4485 Vachell Lane in San Luis Obispo County (Assessor Parcel Numbers 076-071-021 and 076-071-022). The proposed project would develop approximately 24 acres south of Buckley Road and would include buildings, staff and visitor parking, utility improvements, and ancillary improvements. There are two Build Alternatives under consideration and a No-Build Alternative. To supply the proposed project with water and sewer services, Alternative 1 includes constructing an on-site water well and septic system, and Alternative 2 includes constructing new water and sewer utility infrastructure that would connect to existing City of San Luis Obispo infrastructure. After construction is complete and the Maintenance Station and Equipment Shop staff transition to the proposed project site, the state will decommission the existing Maintenance Station and Equipment Shop structures, and all related activities will stop at 50 Higuera Street and 66 Madonna Road. For the purpose of the proposed project, decommission means removing all equipment, materials, operations, activities, and employees from the existing Maintenance Station and Equipment Shop facilities at 50 Higuera Street and 66 Madonna Road. Decommission does not include the demolition and removal of buildings and other structures.

Graphic of project location map

Project Benefits


  • Construct facilities that meet Caltrans District 5 programming requirements for existing and future Maintenance Station and Equipment Shop operations (building sizing, employee staffing, parking, storage space, etc.)
  • Improve daily functions by separating the Maintenance Station and Equipment Shop facilities as industrial type facilities from the conflicting uses of the District 5 Administrative Offices and the Material and Testing Laboratory
  • Consolidate the Maintenance Station and Equipment shop facilities to a single location
  • Construct a facility in District 5 that provides efficient access to the state highway system.
  • Construct a facility that meets the standards of the Americans with Disabilities Act (ADA) and the California Code of Regulations Title 24.
  • Decrease flood risk by relocating the Maintenance Station and Equipment Shop facilities outside or above potential flood zones



The Caltrans District 5 Maintenance Station and Equipment Shop facilities currently consist of a combination of aging and undersized facilities at problematic locations.  Past, present, and predicted future problems with these facilities include:

  • The current faculties are inadequate in size and function and do not meet the needs for existing staff and equipment,
  • Fragmented work locations which make operations activities inefficient,
  • Conflicting industrial type and administrative type workspaces,
  • Escalating operational costs of maintaining aging facilities,
  • Reoccurring flooding events causing damage to buildings and equipment
  • Existing buildings do not meet current seismic structural building standards nor modern green building practices, which maximize efficient use of energy and water resources


Estimated Funding Breakdown

Funding Source Funding Amount
Local Not Applicable
State $106,245,000
Federal Not Applicable


Proposed Project Schedule

 Process Date
Final Environmental document to be completed Summer 2023
Right of way acquisition to be completed Not Applicable
Design to be completed Winter 2025
Advertise Summer 2025
Construction to begin Fall 2025
Construction to be completed Fall 2028


Project Contact

Paul Valadao, Project Manager
Phone: 916-764-9123

Lucas Marsalek, Environmental Coordinator
Phone: 805-458-5408

District 5 Public Information Office
Phone: 805-549-3237



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Notice of Preparation of a Draft Environmental Impact Report (PDF - 2.8MB)

Draft Environmental Impact Report (PDF - 25MB)

Public Notice - November 2023 (PDF - 296KB)


News / Events

A Public Hybrid Meeting (in person and virtual) to discuss the Draft Environmental Impact Report was held Wednesday November 29th, 2023 from 6:00 p.m. to 8:00 p.m. at the Historic Octagon Barn located at 4400 Octagon Way, San Luis Obispo, CA 93401

A video recording of the meeting can be watched here:


Notice of Preparation Virtual Meeting Presentation:
A virtual public meeting to discuss the Notice of Preparation for the Draft Environmental Impact Report was held on Monday, April 11, 2022. A narrated video which provides the information shared during the meeting is available at the link below:


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.

Title VI Brochures

Title VI brochures in various languages