Project Update: I-680 Express Lanes between Walnut Creek and San Ramon March 2017

680 Corridor Projects

The I-680 Contra Costa Express Lanes between Walnut Creek and San Ramon are the first of a series of projects planned for the I-680 Contra Costa corridor to deliver traffic congestion relief. As the first piece of this strategy, the Express Lanes slated to open this summer are expected to improve traffic conditions in the shoulders of the peak commute hour, but likely will have only a modest impact on congestion during the heaviest travel times.

The next project along the I-680 corridor in Contra Costa County will be an extension of the southbound Express Lanes. This project, slated to open in 2020, will result in a continuous 23-mile southbound Express Lane from the Benicia Bridge to Alcosta Blvd. Though the timetable has yet to be determined, the third project on tap for the I-680 corridor in Contra Costa County will be the development of an Express Lane northbound from North Main to the Benicia-Martinez Bridge.

A gap in the northbound Express Lane will remain from Livorna Road to North Main Street. MTC and the Contra Costa Transportation Authority are looking at operational improvements, such as additional transit, in this section. Together, these projects will relieve bottlenecks throughout the corridor.

Map of 680 Corridor Projects

Construction Highlights

Testing Testing…1, 2, 3. Toll system installation and testing on the I-680 Express Lanes is in full swing. Testing of the electronic toll signs is scheduled to begin in March and continue through opening, currently scheduled for summer 2017. Motorists can expect to see dots, test toll amounts, and notification that testing is underway on the electronic signs. All toll system signs are affixed with static “Under Construction” stickers. While motorists will see prices on the signs, cars will not be tolled during the tests.


About Kevin

Mayor - City of Oakley, Data Center Manager of Mainframe Operations and Optimization – USS-POSCO INDUSTRIES, Co-Founder and Board Member - Friends of Oakley A Community Foundation, Advisory Board – Opportunity Junction, Commissioner - Contra Costa Transportation Authority, Board Member - Tri Delta Transit and Transplan
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