Friday, January 16, 2015

I-5 Empire Project Update: Burbank Pile Driving Proceeding on Schedule!

A week into the Buena Vista pile driving operation in Burbank, we can say the following: so far, so good! Work is proceeding on schedule and relatively smoothly. The operation, which is part of the I-5 Empire Project, is occurring near the intersection of Buena Vista Street and Winona Avenue, and is necessary to widen I-5 to accommodate new carpool lanes.

The piles are made of steel and about 16 inches in diameter. They’re driven 40 feet into the ground at a rate of about 25 blows per foot, which works out to about 1,000 blows per pile, delivered by this:

Here’s a shot looking down at the site:

And here’s the pile driver in action:

As is true of all pile driving operations, this one is generating noise and vibration impacts. The Caltrans Noise and Vibration Unit has been on scene measuring those impacts, and the preliminary report suggests the impacts are within the range of normal for an operation of this type. 

Crews will continue with the operation this weekend (Saturday through Monday, MLK Day). The short segment of Winona Avenue that runs under I-5 will be closed, but Buena Vista Street will be open. The complete schedule (subject to change, of course) is here.

Want more info about the Buena Vista pile driving operation? Check out the construction notice here.