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February 20, 2008 > Pile-driving to begin at Washington Blvd.

Pile-driving to begin at Washington Blvd.

Pile-driving activities to construct the foundations for the new Washington Boulevard bridge overpass will begin in mid-February (pending weather or other unforeseen circumstances). Pile driving for the retaining walls and bridges over the Paseo Padre Parkway underpass began in January 2008 and is ongoing. Approximately
800 concrete piles will need to be installed for both grade separations.

Piles are concrete "posts" driven deep into the ground (30 to 60 feet on this project) to provide support for the bridges and retaining walls being constructed as part of the Grade Separation Project.

Pile driving utilizes a large diesel-powered "hammer" to drive the piles into the ground. This hammer will generate significant noise that will be perceptible to local residents in the project vicinity. Some adjacent residents may feel vibration from the pile-driving activities as well.

Construction hours for pile-driving activities will be limited to between 8:00 a.m. and 5:00 p.m. Monday through Friday in order to minimize inconvenience to residents.
On some occasions, work also may occur on Saturdays between 9:00 a.m. and 5:00 p.m.

At Washington Boulevard, pile-driving will occur from mid-February 2008 through April 2008. The current pile-driving activity at Paseo Padre Parkway is expected to be completed in March 2008. This schedule is pending weather or other unforeseen circumstances.

For more information, questions or to sign up on the mailing list, visit, call (510) 273-2488 or email

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