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Stone: Georgia Street Bridge-Caltrans Bridge: ... Healdsburg Memorial Bridge: 1921 2011-4-11 Healdsburg ... Stone arch San Francisco–Oakland Bay Bridge ...
The Duluth Aerial Lift Bridge Claude Allen Porter Turner (July 4, 1869 – January 10, 1955) was an American structural engineer who designed a number of buildings and bridges, particularly in the midwestern U.S. states of Iowa , Minnesota , and Wisconsin .
CA-259: Zaca Creek Bridge No. 2 Extant Reinforced concrete girder: 1916 1999 Jonata Park Road Zaca Creek Buellton: Santa Barbara: CA-263: Cut Stone Bridge Extant Stone arch: 1863 1999 Southern Pacific Railroad: Runoff channel South San Francisco
The Aemilius Bridge, now designated Ponte Rotto, is the oldest extant stone bridge in Rome. [5] The bridge was constructed by Marcus Aemilius Lepidus in 179 BC E and underwent numerous restorations, the most recent of which was conducted by Pope Gregory XIII in 1575. [ 6 ]
Later, seismic problems made the 1927 span unsafe in case of an earthquake, and led to the construction, and 2003 opening, of a replacement: a suspension bridge officially named the Alfred Zampa Memorial Bridge, in memory of iron worker Al Zampa, who played an integral role in the construction of numerous San Francisco Bay Area bridges. The ...
Upon completion, the Rio Vista bridge won an American Institute of Steel Construction class IV (movable bridges) prize bridge award in 1960. [ 7 ] The main lift span weighs 750 short tons (680 t), with an equal amount in counterweights, so the lift mechanism operates 1,500 short tons (1,400 t) using two 30-horsepower (22 kW) electric motors ...
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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 .