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The James E. Roberts Memorial Bridge is a 1,400 foot two-lane highway bridge along the California State Route 120/California State Route 49 concurrency, in Tuolumne County, California. The bridge spans the Tuolumne River just north of Lake Don Pedro, near the community of Chinese Camp. It opened in 1971.
James E. Roberts (November 30, 1930 - July 6, 2006) was a noted American civil engineer. He was recognized with industry and government awards for his leadership in bridge engineering, especially in the area of seismic retrofit.
Albion River Bridge: 1944 2017-07-31 Albion ... Georgia Street Bridge-Caltrans Bridge: 1914 1999-02-12 San Diego San Diego: Open-spandrel arch ...
The design proposed was an elevated viaduct consisting of reinforced concrete columns and precast concrete segment spans as seen in the illustration at right. The design criterion was that the new bridge should survive an 8.5 magnitude earthquake on any of several faults in the region (particularly the nearby San Andreas and Hayward faults).
It is developed by the California Department of Transportation (Caltrans) Division of Safety Programs "in substantial conformance to" the national Manual on Uniform Traffic Control Devices developed by the Federal Highway Administration. The first edition of the CA MUTCD was published in 2006, replacing an earlier supplement to the national MUTCD.
The bridge is signed as part of State Route 154. It is currently the highest arch bridge in the U.S. state of California and among the highest bridges in the United States. At its highest point, the bridge deck is 400 ft (122 m) above the canyon floor. [1] [2] The bridge is also the largest steel arch bridge in the state. [3]
Oct. 30—California Department of Transportation District 3 Director Amarjeet S. Benipal is set to retire at the end of this year, according to a report by POLITICO. Benipal's retirement, which ...
The north bridge was begun on July 26, 2006 and it was completed in November 2008. Before the south bridge was finished, the north bridge was used to carry construction debris out of the realignment site on the opposite bank. The south bridge was begun in November 2006 and its two piers were completed by November 2008. [4]