The North 21st Street Bridge in Tacoma, Washington was built in 1910. It was designed by engineers Waddell & Harrington and is a continuous concrete rigid-frame girder bridge. It is significant as one of the very earliest examples of its type. It was built "almost simultaneously" with the 950-foot (290 m) in Knoxville, Tennessee, which was documented by Carl W. Condit to be the first continuous concrete girder bridge to be built. The bridge was listed on the National Register of Historic Places in 1982.
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| - North 21st Street Bridge (en)
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| - The North 21st Street Bridge in Tacoma, Washington was built in 1910. It was designed by engineers Waddell & Harrington and is a continuous concrete rigid-frame girder bridge. It is significant as one of the very earliest examples of its type. It was built "almost simultaneously" with the 950-foot (290 m) in Knoxville, Tennessee, which was documented by Carl W. Condit to be the first continuous concrete girder bridge to be built. The bridge was listed on the National Register of Historic Places in 1982. (en)
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- North 21st Street Bridge (en)
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| - North 21st Street Bridge (en)
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| - Rigid-frame girder bridge (en)
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| - Creelman, Putnam & Healy (en)
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| - Spans Buckley Gulch and North Fife and Oakes streets, Tacoma, Washington (en)
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| - North 21st Street Bridge, North 21st Street spanning Buckley Gulch, Tacoma, Pierce County, WA (en)
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| - 47.2675 -122.46972222222222
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| - The North 21st Street Bridge in Tacoma, Washington was built in 1910. It was designed by engineers Waddell & Harrington and is a continuous concrete rigid-frame girder bridge. It is significant as one of the very earliest examples of its type. It was built "almost simultaneously" with the 950-foot (290 m) in Knoxville, Tennessee, which was documented by Carl W. Condit to be the first continuous concrete girder bridge to be built. It has three 60 feet (18 m) reinforced concrete spans with four continuous girders. Its spans are supported by reinforced concrete columns and abutments. The bridge has "massive and over-designed" slabs (9 feet (2.7 m) deep) and beams from 4 to 7 feet (1.2 to 2.1 m) wide, from 9 to 11 feet (2.7 to 3.4 m) deep. It is 48 feet (15 m) wide to accommodate trolley tracks in the middle. The bridge was listed on the National Register of Historic Places in 1982. (en)
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| - POINT(-122.46971893311 47.267501831055)
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