Highway 12 Solano Co. Roadway Rehab, $23M

Project Team:  Caltrans & RGW Construction, Inc.

GLA Facilitator(s): Sam Hassoun

Award(s) Won: Caltrans Excellence in Partnering, 2012 Silver Award 

Schedule: 424 contract days — finished in 423 days

Budget: $2.2 Million below budget of $25.6 Million

Safety: No lost time accidents

The safety improvements and roadway rehabilitation project involved widening and profile correction on Highway 12 from Walters Road in Suisun City to Currie Road, west of Rio Vista. The two-lane road across rural rolling terrain significantly improved safety and stopping distances of this segment by providing standard 12-foot lanes and 8 foot shoulders, adding left-turn lanes and placing channelizers and rumble strips, and correcting vertical and horizontal profile characteristics within the Montezuma Hills. The project faced environmental challenges due to its proximity to the Delta, Sacramento River and Carquinez Straits and its endangered species such as the red-legged salamander.
“The most valuable parts of the partnering sessions were opening communications to 
another level and group interaction, particularly discussing challenges and solutions.”

– HWY 12 Project Participant feedback
from GLA partnering sessions