PLACER COUNTY – Caltrans is alerting Interstate 80 (I-80) motorists to expect intermittent off- and on-ramp closures at Baxter and Cisco Grove through October for various construction improvements. 

Bridge rehab project on I80

Beginning Friday, September 30, construction crews will start pouring bridge deck concrete for the reconstructed Baxter overcrossing structure. The deck requires a 15-day cure time before additional work may continue. During the waiting period, reconstruction work on the Baxter off- and on-ramps will begin with ramps closed intermittently beginning Saturday, October 1. Motorists using the ramps may be driving on base rock or ground asphalt through October 20 while the ramps are prepared for new curbs, drainage and pavement. During intermittent ramp closure periods, motorists are advised to use Crystal Springs (Exit 148A) for access to local roads.

In addition, the Cisco Grove off- and on-ramps may be closed intermittently through mid-October for curb, drainage and paving work. The Cisco Grove overcrossing will remain open for use during ramp work. During ramp closure periods, eastbound motorists should take Big Bend (Exit 166) to Hampshire Rocks Road, while westbound motorists may use Eagle Lakes Road (Exit 164) to I-80 eastbound for access to Cisco Grove.

The construction schedule is subject to change based on weather, availability of materials or equipment, or other unexpected events.

The work is part of a $57 million project to replace four I-80 bridge overcrossings in Placer County: Crystal Springs, Baxter, Drum Forebay and Cisco Grove. The structures are being demolished and rebuilt due to cracking and spalling of the concrete decks and high corrosive chloride content in the deck surfaces. All overcrossings are being widened to include 8-foot shoulders, 6-foot sidewalks and will include ramps that comply with Americans with Disabilities Act (ADA) standards.

The project includes $3.48 million in funding from Senate Bill 1, the Road Repair and Accountability Act of 2017. SB 1 provides $5 billion in transportation funding annually split between the state and local agencies. Road projects progress through construction phases more quickly based on the availability of SB 1 funds, including projects that are partially funded by SB 1. For more information about other transportation projects funded by SB 1, visit

Project construction began in April 2021 with completion expected in summer 2023. Walsh Construction of Concord is the prime contractor.

The department will issue construction updates on Twitter @CaltransDist3, on Facebook at CaltransDistrict3 and on the Caltrans District 3 website. For real-time traffic, click on Caltrans’ QuickMap or download the QuickMap app from the App Store or Google Play.