This is a thumbnail of the cover for the performance audit of California Department of Transportation’s Administration of Its Statewide Airspace Program.

Airspace Program (Part II): Audit of the California Department of Transportation’s Administration of Its Statewide Airspace Program

Issued: 2/12/2026

We audited the California Department of Transportation’s administration of its statewide Airspace Program. This report is the second in a series of reports regarding the department’s administration of properties it controls, known as airspaces, located underneath state highways.

Airspace Program (Part II)
This is a thumbnail image of the state capitol.

California Department of Transportation, District 10, Project Compliance Audit

Issued: 6/26/2025

We audited the costs that the California Department of Transportation, District 10 incurred related to the State Route 99 Stanislaus Capital Preventive Maintenance Ramps project totaling $29,344,063. We also audited the project deliverables and benefits.

California Department of Transportation, District 10, Project Compliance Audit
This is a thumbnail image of the front page photo.

County of Sacramento, Project Compliance Audit

Issued: 4/29/2025

We audited the costs that the County of Sacramento incurred related to three projects totaling $16,508,152, which were reimbursed by the California Department of Transportation. We also audited the project deliverables and benefits.

County of Sacramento, Project Compliance Audit
This is a thumbnail of the cover image.

City of Artesia, Project Compliance Audit

Issued: 5/13/2025

We audited the costs that the City of Artesia incurred related to one project totaling $1,738,472, which were reimbursed by the California Department of Transportation. We also audited the project deliverables and benefits.

City of Artesia, Project Compliance Audit
This is an image of a train car from the SD metro area.

San Diego Metropolitan Transit System, Project Compliance Audit

Issued: 4/8/2025

We audited two San Diego Metropolitan Transit System projects, one for reimbursed costs in the amount of $34,143,138 and the other project for deliverables and benefits.

San Diego Metropolitan Transit System, Project Compliance Audit