Construction to begin in coming weeks on Gold Line Foothill Extension bridge over 210

The bridge that will carry the Foothill Extension over the eastbound lanes of the 210 freeway.

Here’s the update from the Gold Line Foothill Extension Construction Authority, the independent agency building the line from Pasadena to Azusa.

There’s a nice gallery of renderings and photos at the Construction Authority’s website.

This is a Measure R funded project and the update says construction will start in the coming weeks:

After nearly a year of final design work, permit approvals, subcontractor hiring, and much more, construction on the I-210 Bridge is about to start in the coming weeks. 

The first step will be to prepare the site and provide access for the large construction equipment. The center median slope will be removed and a temporary retaining wall will be built to support the westbound lanes. This work will take approximately a month to complete. Once the retaining wall is installed, work will begin on the bridge’s foundations.

Initial foundation work will consist of drilling several deep steel-reinforced concrete foundations (called piles) ranging in size from 3 to 11 feet in diameter and up to 110 feet below ground. Once the foundations are ready, construction of the bridge structure itself will begin in the Fall. To protect the freeway during the year-long construction, a temporary support (called falsework) will be installed across the eastbound freeway lanes.  



As construction begins, the Authority will be preparing bi-weekly construction notices as well as sending construction alerts when eastbound freeway closures are anticipated. Attached is the first bi-weekly notice (for June 27 through July 2011). 

To sign up to receive future notices directly, click here – or keep checking the Authority website for the latest construction news.  If you want to receive closure alerts, don’t forget to provide your cell phone number.

Freeway Detour Plan

Intermittent partial and/or full freeway closures of the eastbound I-210 freeway lanes will occur over the year of construction, mostly from midnight to 5:00 a.m. Traffic will be detoured along Foothill Boulevard (see map):

3 replies

  1. This is a good sign for the project. Now if the Gold Line Foothill Extension Construction Authority, the city of Monrovia and the property owner where the rail yard will be can reach an agreement on the value of the land the project could move forward.