Contra Costa Transportation Authority

Contra Costa Transportation Authority

News and Stories

Tree Removal Marks Construction Start on Richmond-San Rafael Corridor Project
Top Stories
Monday, January 9, 2017

Construction crews are set to begin work this week on the first of a series of MTC-sponsored projects to relieve traffic congestion in the Richmond-San Rafael Bridge corridor by establishing a thir

Third Eastbound Lane for Richmond-San Rafael Bridge Clears Key Hurdle
News Release
Thursday, August 25, 2016

The planned addition of a third eastbound lane to Interstate 580 across the Richmond-San Rafael Bridge and other improvements along the nearly six-mile corridor reached a key milestone this month a

Community Celebration Marks Completion of Highway 4 Widening Projects
News Release
Wednesday, July 20, 2016

(News from Contra Costa Transportation Authority)

Completed State Route 160/ Highway 4 Project Connects Commuters to Antioch Bridge
News Release
Monday, February 29, 2016

(News from the Contra Costa Transportation Authority)

Quotes From California and Bay Area Leaders in Support of Stand Up for Transportation
Top Stories
Friday, April 3, 2015

Top officials from more than a dozen local and state transportation agencies joined together in San Francisco to show solidarity with the national Stand Up for Transportation campaign.


Traffic Advisory I-580 Access Improvements April 17, 2017
TRAFFIC ADVISORY RSR_17 April 2017 FINAL (2).pdf (139.01 KB)
Traffic Advisory I-580 Access Improvements April 10, 2017
TRAFFIC ADVISORY RSR_10 April 2017 FINAL.pdf (120.68 KB)
Traffic Advisory I-580 Access Improvements April 3, 2017
TRAFFIC ADVISORY RSR_03 April 2017 FINAL.pdf (299.24 KB)
Fact Sheet: I-680 Express Lanes Contra Costa County (Spring 2017)
I-680_Exp_Lanes_CC_web_display.pdf (6.56 MB)
Traffic Advisory I-580 Access Improvements March 27, 2017
TRAFFIC ADVISORY RSR_27 March 2017 FINAL.pdf (845.34 KB)


SR 160 - HWY 4 Project Photos
Photo Gallery
Friday, March 11, 2016

The new SR 160 - HWY 4 ramps eliminate the U-turn that was previously required at Hillcrest Avenue, reduce through traffic and congestion on Oakley's city streets, and improve access for Eastern Co