Best Projects, Transportation: Safe, Sound and Soaring Over Presidio Park
Doyle Drive, part of U.S. Highway 101, provides access to and from the Golden Gate Bridge above the historic Presidio National Park in San Francisco. Erected in 1936 on a pair of viaducts, Doyle Drive was one of the country's most seismically unsafe structures.
The goal of this $90-million project, the third in a series of Caltrans contracts near the iconic bridge, was to remediate the seismic problem. The project broke ground in January 2010 and was completed in December 2011.