Caltrans District 4
Right-of-Way Mapping Support
GIS Data Development
Mobile Terrestrial Laser Scanning
Ground Penetrating Radar
Local Agency Project Reviews
Project Closeout Review and Processing
Project Management Support
Legal Documentation Mapping Support
Multi-year Contract Covering Nine Bay Area Counties
Through multiple on-call contracts, Psomas has provided field and office support services throughout District 4 for several years. District 4 includes nine San Francisco Bay Area counties – Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, Santa Clara, Solano and Sonoma. Dozens of task orders have been completed for a wide range of projects and numerous branches within Caltrans District 4.
In addition, staff has been provided to augment Caltrans’ workforce in the Right-of-Way Engineering, Surveying and Mapping Division for a variety of staffing classifications.
Some of the key task orders include:
- Doyle Drive/Presidio Parkway
- Niles Canyon
- Emergency Surveys on I-880
- Bay Bridge Yerba Buena Tunnel
- Route 152 – Gilroy
- Sonoma – US-101
- San Rafael Bridge E-Toll Parking Lot
This contract includes several unique specialty surveying projects, including the Niles Canyon project and a second mobile scanning effort as-built for the Doyle Drive project.