Danville Express

Newsfront - March 30, 2007

Caltrans opens southbound auxiliary lane

Diablo Road onramp no longer 'short merge'

by Dolores Fox Ciardelli

The auxiliary lane from Diablo Road south to Sycamore Valley Road on I-680 opened last week, ending the dangerous "short merge" that southbound drivers have had to contend with for almost a year. Auxiliary lanes connect onramps from one interchange with the offramps of the adjacent interchange, enabling drivers to travel from one exit to the next without merging with through-traffic.

The project, which included widening both sides of the freeway to add the 12-foot lanes and new shoulders, also added an auxiliary lane from Crow Canyon to Bollinger Canyon that is now open.

The construction work began in April 2006 and was expected to take one year; final landscaping is due in fall 2007. The third segment of the project, from Sycamore Valley Road to Crow Canyon, is not yet funded.

The auxiliary lanes should improve the overall operation of the freeway, noted a project report, providing a longer merging distance for vehicles entering and exiting the freeway. "The new lanes will eliminate on-ramp delays by providing exclusive travel lanes for vehicles entering the freeway," according the report. "This will result in much smoother weaving on and off the freeway."

The $59.7 million project for all three segments is being funded by Measure C, the half-cent gas tax passed in 1998 for transportation improvement; the Surface Transportation Program; Southern Contra Costa Regional Development fees; Tri-Valley Transportation Development fees; and State Transportation Improvement fees.


There are no comments yet for this post

Post a comment

Posting an item on Town Square is simple and requires no registration. Just complete this form and hit "submit" and your topic will appear online. Please be respectful and truthful in your postings so Town Square will continue to be a thoughtful gathering place for sharing community information and opinion. All postings are subject to our TERMS OF USE, and may be deleted if deemed inappropriate by our staff.

We prefer that you use your real name, but you may use any "member" name you wish.

Name: *

Select your neighborhood or school community: *

Choose a category: *

Since this is the first comment on this story a new topic will also be started in Town Square! Please choose a category that best describes this story.

Comment: *

Verification code: *
Enter the verification code exactly as shown, using capital and lowercase letters, in the multi-colored box.

*Required Fields