Caltrans will soon begin some unusual work to raise the vertical clearance of nine structures in Placer County that cross Interstate 80 (I-80).
The overcrossings include eight vehicle bridges and one railroad trestle from the Brace Road overcrossing in Loomis to the Magra Road overcrossing east of Colfax.
The vertical clearance of these structures is being raised to 16-feet 6-inches to meet current standards that improve access on I-80 through the Sierra for interstate commerce and national security. Six structures will be raised using a complex system of jacks and reconstruction, while the roadway under the remaining three structures will be dug down to create the required clearance.
Work will begin in the spring of 2014 and go through the fall of 2015. Each of the six raised structures will require I-80 to be completely closed overnight for two nights, and the overcrossings will be closed for two months.
Structures requiring the highway to be dug lower will require multiple long-term lane and ramp closures.
Traffic detours will be in effect during the construction work in the communities of Loomis, Penryn, Newcastle, Weimar and Colfax. According to Caltrans District 3 Director Jody Jones, “This work will ultimately benefit these communities because higher-profile trucks will no longer have to be routed around the overcrossings onto local streets.”
To keep the public informed about these projects and road closures, Caltrans is launching a public outreach campaign called “Raise80,” which includes a website, www.Raise80.com.
Details will be added as specific dates for each section of the project are confirmed by the construction contractor. Regular updates will include:
· Construction project updates — including schedules, completion status, closures and anticipated delays
— Relevant information about I-80 and historical facts about the affected areas
— Photos and video as the work is performed.
Social media is also available for Raise80 on Facebook, Twitter and Instagram. The public is encouraged to follow these sites for up-to-date information about the construction, traffic alerts, detours and other project information: www.facebook.com/Raise80, www.twitter.com/Raise_80 and www.instagram.com/Raise80.