Wednesday, Aug. 12 through the morning of Saturday, Aug. 15; Monday, Aug. 17 through the morning of Thursday, Aug. 20
Marin County — Caltrans is scheduled to continue its Capital Preventive Maintenance project along US-101 and Interstate 580 (I-580) in August.
Various lanes will be closed from Wednesday, Aug. 12 through the morning of Saturday, Aug. 15 as well as Monday, Aug. 17 through the morning of Thursday, Aug. 20 between Tamalpais Drive and the onramp from Bellam Boulevard/ Westbound I-580 between 10 p.m. and 7 a.m.
Lanes will be closed on Southbound US-101 between the off-ramp to Bellam Boulevard/Eastbound I-580 and Tamalpais Drive between 10 p.m. and 6 a.m. the next morning. The onramp from Sir Francis Drake Boulevard will be closed in that same time period on Northbound US-101.
The Northbound off-ramp to Bellam Boulevard is scheduled to be closed from midnight to 5 a.m. the next morning.
All work is dependent on weather.
Northbound on-ramp from Eastbound Sir Francis Drake detour
- Head east on Sir Francis Drake Blvd
- Continue on Eastbound Sir Francis Drake Blvd
- Take the ramp on to I-580 and take the exit toward San Quentin
- Turn left onto Main Street
- Turn left at First Street on to Francisco Boulevard
- Turn left on to San Rafael/I-580 Westbound on-ramp
- Merge onto I-580 Westbound
- Follow I-580 Westbound to Northbound US-101
Northbound US-101 on-ramp from Westbound Sir Francis Drake detour
- Head west one Sir Francis Drake Boulevard
- Turn right on to Wolfe Grade
- Wolfe Grade turns left and becomes D Street
- Turn right on to Second Street
- Turn left onto Irwin Street
- Take the on-ramp on to Northbound US-101
Sir Francis Drake Boulevard to Eastbound I-580 detour
- Head west on Sir Francis Drake Boulevard
- Turn right on to Wolfe Grade
- Wolfe Grade turns left and becomes D Street
- Turn right on to Second Street
- Take Second Street on-ramp to Southbound US-101
For real-time traffic, click on Caltrans QuickMap: http://quickmap.dot.ca.gov/
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