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August 11, 2010
For Immediate Release << back

Southbound Hwy 101 to Southbound Hwy 1 Ramp Closure

SAN FRANCISCO - Beginning Saturday, August 14 at 10:00 p.m. there will be a 13-hour closure of the southbound connection from the Golden Gate Bridge to Highway 1/Park Presidio Boulevard.

The ramp is scheduled to reopen on Sunday, August 15 at 11:00 a.m. The ramp closure is necessary in order to shift the southbound Highway 1 off-ramp to the north and continue Highway 101/1 interchange improvements.

Expect delays on Sunday morning. Optional trips should be avoided during this closure.

Motorists should be aware of the new roadway configuration and otherwise exercise caution in construction zones.

View a printable advisory, including a map:

Ramp Closure Detour Information

Detour signage will direct southbound travelers to continue on Highway 101 (Lombard Street and Van Ness Avenue) to Geary Boulevard to Highway 1/Park Presidio Boulevard. This detour route was selected because it is able to carry a high volume of traffic and uses relatively flat streets. The signed detour must be accessible to all vehicles, including large trucks, motor homes, etc.; however, most people will choose their alternate route based on what is most convenient for where they are coming from and going to. The closure was scheduled for a time when traffic volumes are lowest and crews can work safely without endangering the traveling public.

About The Doyle Drive Replacement Project

The replacement of Doyle Drive with the Presidio Parkway is a collaborative effort led by the California Department of Transportation and the San Francisco County Transportation Authority.

Doyle Drive is the portion of Route 101 located within the Presidio of San Francisco that winds 1.5 miles along the northern edge of San Francisco and connects the San Francisco peninsula to the Golden Gate Bridge and the North Bay. Each weekday, more than 100,000 vehicles travel between Marin and San Francisco over the Golden Gate Bridge along Doyle Drive.

Doyle Drive is structurally and seismically deficient and must be replaced. The roadway is facing the same problem that threatens other crucial components of the nation's infrastructure - the ravages of time and continual use. Originally built in 1936, Doyle Drive has reached the end of its useful life.

The new Presidio Parkway is based on a world-class design that will improve the seismic, structural and traffic safety of the roadway and will create a spectacular regional gateway between the iconic Golden Gate Bridge and the city of San Francisco. The parkway design includes two short tunnels, a wide landscaped median and traffic calming transitions to city streets, respects the natural contours of the surrounding area, and complements the unique environment of San Francisco and the Presidio, a national park.


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