The board of directors for the Golden Gate Bridge, Highway and Transportation District voted unanimously last week to approve the purchase and installation of a $26.5 million traffic barrier, officials said.
The Movable Median Barrier, aimed at minimizing “cross-over-head-on accidents,” will separate northbound and southbound traffic and span approximately 11,500 feet, district spokesperson Mary Currie said.
Between 2006 and 2010, there were 306 collisions, 83 injuries and no fatalities on the historic bridge, according to district data. The last fatality was in July 2001.
Installation of the barrier is tentatively planned of late October or early November in 2014, Currie said. The construction is expected to require a full, weekend-long closure of the bridge, estimated at 52 total hours.
The barrier will consist of more than 3,500 steel clad units – measuring 12 inches wide, 32 inches tall and 39 inches long – filled with high-density concrete. The units will be pinned together to form a semi-rigid, movable barrier.
The installation will also require the purchase of two “zipper trucks,” which will assist in moving the barrier into various configurations.
The Metropolitan Transportation Commission is financing a majority of the project, contributing $20 million. An additional $1.3 million will come in the form of federal funds and the district will contribute $5.1 million from Golden Gate Bridge tolls.
Contact Gregory Andersen at firstname.lastname@example.org.