Davis I-80 ramp closure June 26–29: Caltrans detour for Richards Blvd drivers

Caltrans says the north- and southbound Richards Boulevard on-ramps to eastbound I-80 will close for an extended weekend construction window: 9 p.m. Friday, June 26, 2026 through 4 a.m. Monday, June 29, 2026.

The agency says workers will rebuild the on-ramp, and motorists will need to follow a detour to get back onto eastbound I-80.

What’s closing (and what speed to expect) i

Caltrans’ notice is specific to the Richards Boulevard on-ramp to eastbound I-80. The construction zone speed limit will be reduced to 55 mph through the work area.

Detour instructions Caltrans advises i

Caltrans’ suggested detour is:

• From north- or southbound Richards Boulevard, take the westbound I-80 on-ramp to Old Davis Road.
• Then turn around back onto eastbound I-80 (follow the posted detour/signage in place during the closure).

Because drivers enter the interchange from different directions, Caltrans’ guidance is best followed as “follow the posted detour/signage” rather than assuming one fixed route works for every starting point.

Why this is happening on the I-80 corridor i

Caltrans ties the on-ramp work to the ongoing Yolo 80 Managed Lanes Project. At the same interchange, the City of Davis describes its Richards Boulevard / I-80 Interchange Improvements as work to improve traffic operations and multimodal safety by reconfiguring ramps and adding a grade-separated shared-use path, and says it has been working in parallel with Caltrans’ managed-lanes effort.

What to check before you drive June 26–29 i

Caltrans cautions the schedule can change due to weather, equipment/material availability, or other unexpected events. Before you head out during the closure window, check Caltrans Highway Information / QuickMap for real-time status and follow all posted work-zone and detour signage.

Sources

• Caltrans District 3 news release (full on-ramp closure to eastbound I-80 in Yolo County)
• The Sacramento Bee: Davis I-80 ramp closure scheduled for June construction
• City of Davis: Richards Boulevard / I-80 Interchange Improvements (project page)
• Yolo County Public Works: Interstate 80 project updates
• Caltrans Highway Information (roads.dot.ca.gov) for I-80