Caltrans is planning these key lane closures in Sonoma, Mendocino, Lake and Marin counties this week:

SONOMA COUNTY

-–Highway 101, from Steele Lane to Windsor River Road, northbound and southbound at various locations, with one lane closed at about 7 p.m. Monday to Friday and a second at 10 p.m.. All lanes are to be reopened by 5 a.m., except for 7 a.m. on Saturday. This is part of the final paving work of the highway’s widening project. Hang in there; it’s getting closer to being finished.

–-Commerce Boulevard beneath 101 in Rohnert Park will be closed 8 p.m. to 5 a.m. Monday through Friday.

-–Highway 101, from Rohnert Park Expressway south to Pepper Road, various lanes at various locations will be closed 11 p.m. to 5 a.m. Monday to Friday.

-–Highway 116, from Adobe Road to County Dump Road, will have one-way traffic control 7 p.m. to 5 a.m. Monday through Friday.

-–Highway 1, from Scotty Creek to the Russian River, one-way traffic control 7 a.m. to 6 p.m. Monday to Friday.

-–Highway 1, from The Sea Ranch to Gualala, one-way traffic control at various locations 7 a.m. to 7 p.m.

MARIN COUNTY

–Highway 1, from the community of Point Reyes to Tomales, one-way traffic control at various locations 7 a.m. to 5 p.m. Monday to Friday