FILE: Flooding caused by a King Tide flows across the San Francisco Bay Trail along U.S. Highway 101 in Marin City, Calif., on Tuesday, Nov. 4, 2025. (Ruth Dusseault/Bay City News)

Some lanes of U.S. Highway 101 in Marin County, both northbound and southbound, will be closed for roadway improvements from Sunday night through the morning of July 10, Caltrans said.

Northbound closures will be from 10 p.m. to 6 a.m. the next morning, while southbound closures will be from 8 p.m. to 5 a.m., the agency said Friday.

The planned schedule includes:

  • Sunday, July 5: Southbound off-ramp to Lucky Drive and southbound on-ramp to Lucky Drive.
  • Monday, July 6: Northbound off-ramp to Sir Francis Drake Boulevard and on-ramp to Lincoln Avenue/Villa Avenue.
  • Tuesday, July 7: Northbound off-ramp to San Pedro Road.
  • Wednesday, July 8: Northbound off-ramp to North San Pedro Road.
  • Thursday, July 9: Southbound U.S. 101 on-ramp from Freitas Parkway and southbound U.S. 101 off-ramp to North San Pedro Road.