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Construction of I-680 Northbound Express Lane begins early 2018

Nov 27, 2017 at 6:28am

Alameda CTC, in partnership with Caltrans, has awarded a $107 million contract for the construction of the I-680 Sunol Northbound Express Lane.

Construction begins early 2018.

“Alameda CTC is keeping its pledge to residents and businesses throughout Alameda County by delivering critical transportation improvements and supporting local jobs with funding from the approval of sales tax Measures B and BB,” says Alameda CTC Executive Director Arthur L. Dao. “It is not every day that more than $100 million in local construction work hits the street.”

This first phase of the I-680 Sunol Northbound Express Lane Project will widen the existing freeway and construct a new ~9-mile express lane and associated improvements on northbound I-680 between Auto Mall Parkway and SR-84 in Alameda County, providing congestion relief in the corridor. The project also includes upgrades to the adjacent southbound I-680 Sunol Express Lane, modifying the access configuration from controlled access to a near continuous access configuration, similar to that on the I-580 Express Lane corridor through the Tri-Valley. The construction contract was awarded to Concord, CA-based Bay Cities Paving & Grading, Inc.

The I-680 Sunol Southbound Express Lane was opened in 2010 as the first express lane in the Bay Area. Since then, Alameda CTC opened the east- and westbound I-580 Express Lanes (2016) and MTC opened the I-680 Contra Costa Express Lanes (2017).

Express Lanes provide more reliable travel times, improved traffic conditions, and incentives to carpool and use transit. I‐680 at the Sunol Grade is consistently ranked one of the top 10 most congested freeway corridors in the Bay Area. Queues near Andrade Road begin to form at 2 p.m. or earlier most weekdays and extend beyond Scott Creek Road (nearly 10 miles) by the peak afternoon commute. Travel time delay contributes to diverted traffic on Calaveras Boulevard, Mission Road and Mission Boulevard.

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