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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.
Sixth Street Bridge from the LA River: Other name(s) 6th Street Viaduct: Maintained by: City of Los Angeles and California Department of Transportation (Caltrans) ID number: 53C-1880 (City of Los Angeles), 53-0595 (Caltrans) Characteristics; Design: Viaduct: Material: Reinforced concrete and steel: Total length: 3,500 feet (1,100 m) Width: 46 ...
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).
Caltrans District 7 Headquarters in Los Angeles, designed by Thom Mayne. Caltrans District 8 Headquarters in San Bernardino Caltrans headquarters in Sacramento. The earliest predecessor of Caltrans was the Bureau of Highways, which was created by the California Legislature and signed into law by Governor James Budd in 1895. [7]
The Vincent Thomas Bridge is a 1,500-foot-long (460 m) suspension bridge, crossing Los Angeles Harbor in Los Angeles, California, linking San Pedro with Terminal Island. It is the only suspension bridge in the Greater Los Angeles area. The bridge is part of State Route 47, which is also known as the Seaside
The bridge is constructed of reinforced concrete because studies after the 1906 San Francisco earthquake showed that reinforced concrete withstood earthquakes. [3] [4] The nearly one-quarter-mile (0.4 km) span cost US$245,967 (equivalent to $8,043,000 in 2023) to build, and consumed millions of board feet of local redwood timber for the framing ...
Smaller continuous truss bridge over the Illinois River at Lacon, Illinois The Kingston-Rhinecliff Bridge The Sciotoville Bridge (1916), the first continuous truss bridge in the United States. A continuous truss bridge is a truss bridge that extends without hinges or joints across three or more supports. A continuous truss bridge may use less ...