Construction Alert:

Heavy Lifting for SR 160/4 Connector Ramps

These giant rebar cages, weighing the equivalent of 70 cars, will form the foundations of SR 160/4 Connector Ramps. See how our crews got them into the ground. Learn more

Community Celebration Marks Completion Of Highway 4 Widening Projects

View our coverage of the exciting ribbon cutting ceremony that marked the completion of the Highway 4 Widening Projects. Learn more.

Photos of Construction Progress

Check out our Media page for some amazing photos of current construction progress. Photos are added regularly, so check back often!

Learn more

Tweets from @4eastcounty

Highway 4 Time Lapse Video

Highway 4 Time Lapse Video

Enjoy this stunning time-lapse film that condenses six years of work by 12,775 workers into two minutes.

In the News

In the News

The City of Pittsburg, San Francisco Bay Area Rapid Transit District (BART), Contra Costa Transportation Authority and Metropolitan Transportation Commission invite you to the Pittsburg Center BART Station Milestone Event!


Thursday, November 12, 2015, from 2:30-3:30pm at the corner of Railroad Avenue and California Avenue in Pittsburg.