I-680 Auxiliary Lanes, Segment 2
Between Sycamore Valley Road and Crow Canyon Road
The I-680 freeway is a vital transportation corridor serving residents and businesses throughout Contra Costa County. Over the past four decades, traffic volumes have greatly increased along the
I-680 corridor, placing substantial demands on the freeway and increasing congestion which affects local residents, businesses and the overall quality of life in Contra Costa County. In response to these increasing demands, the Contra Costa Transportation Authority (CCTA) has planned and implemented improvements along the I-680 corridor over the last decade. A key part of the I-680 corridor improvements is the construction of auxiliary lanes within the Town of Danville and portions of the City of San Ramon.
Due to funding limitations, the I-680 Auxiliary Lanes Project has been implemented in three segments. The final segment will construct new auxiliary lanes in both the northbound and southbound directions of I-680 between Sycamore Valley Road and Crow Canyon Road. Construction will begin in early 2013 and is anticipated to be complete in mid-2014. After construction is complete, a landscaping contract will follow. The project is funded by federal, state and local funds, as well as Measure C, the half cent transportation sales tax administered by CCTA.
CURRENT PROJECT SCHEDULE
Project construction began in late March, following tree removal.
| ACTIVITY Construction Landscaping |
TIMEFRAME March 2013 - Mid 2014 Mid - Late 2014 |
6:00 a.m. - 3:00 p.m. Weekdays
7:00 a.m. - 4:00 p.m. Saturdays (only when necessary)
NIGHT SHIFT WORK HOURS*
8:00 p.m. - 5:00 a.m. Weekdays
8:00 p.m. - 8:00 a.m. Saturdays
8:00 p.m. - 10:00 a.m. Sundays
*All night shift hours will occur only when necessary
ADDITIONAL UPDATES WILL BE PROVIDED THROUGHOUT THE PROJECT. WE APPRECIATE YOUR PATIENCE DURING CONSTRUCTION.
To reach the Project Information Line, please call 925-262-1158, or send an e-mail with your question or comment to I680auxlanes@gmail.com. We look forward to hearing from you.
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CLICK HERE TO VIEW FACT SHEET [PDF-4.6 MB]
CLICK HERE TO VIEW CONCEPTUAL LANDSCAPE PLAN [JPG-5.1 MB]
![CLICK HERE TO VIEW CONCEPTUAL LANDSCAPE PLAN [JPG-5.1 MB]](../../../assets/documents/I-680~Aux~Lane~Fact~Sheet/006-680 Aux Project Overview-Landscaping.jpg){kind=link}
CLICK HERE TO VIEW SOUNDWALL AND RETAINING WALL PLAN [PDF-1.4 MB]
CLICK HERE TO VIEW MARCH 2013 CONSTRUCTION UPDATE [PDF-300KB]
CLICK HERE TO VIEW MARCH 28 CONSTRUCTION PRESS RELEASE [PDF-100KB]
CLICK HERE TO VIEW THE APRIL 2 TRAFFIC ADVISORY [PDF - 93 KB]