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

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!

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Why Highway 4?

What do the Highway 4 corridor improvements mean for the people of East County? Watch our video interview with Randy Iwasaki, CCTA Executive Director, to learn more.

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Tweets from @4eastcounty

  • One or more NB & SB lanes of A St will be closed b/t Rossi & E. Tregallas tomorrow 9am-3pm & 7pm-6am. At least one lane will remain open.
  • One or more NB & SB lanes of Hillcrest will be closed b/t Larkspur & Sunset tomorrow 9am-3pm & 7pm-6am. At least one lane will remain open.
  • One or more EB & WB lanes of Sunset will be closed b/t Hillcrest & Devpar tomorrow 9am-3pm & 7pm-6am. At least one lane will remain open.
  • One or more EB & WB lanes of Larkspur will be closed b/t Hillcrest & Wildflower tomorrow 9am-3pm & 7pm-6am. At least 1 lane will remain open
  • One or more WB lanes will be closed b/t the SR-160 connector and A St / Lone Tree Way tonight 10pm-4am. At least one lane will remain open.
  • One or more EB lanes will be closed b/t Bailey Road and Contra Loma Boulevard tomorrow from 4:30am-12pm. At least one lane will remain open.
  • One or more WB lanes will be closed b/t Contra Loma Boulevard & Railroad Avenue tomorrow from 11am-7pm. At least one lane will remain open.
  • One or more NB & SB lanes of A St will be closed b/t Rossi & E. Tregallas tomorrow 9am-3pm & 7pm-6am. At least one lane will remain open.
  • One or more NB & SB lanes of Hillcrest will be closed b/t Larkspur & Sunset tomorrow 9am-3pm & 7pm-6am. At least one lane will remain open.
  • One or more EB & WB lanes of Sunset will be closed b/t Hillcrest & Devpar tomorrow 9am-3pm & 7pm-6am. At least one lane will remain open.

Traffic Updates

Traffic Updates

Check here for up-to-date information on ramp, lane, and full freeway closures and other traffic impacts during construction.

 

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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.