Английская Википедия:Boulder Creek Bridge (Boulder, Colorado)

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Шаблон:Use mdy dates Шаблон:Infobox NRHP The Boulder Creek Bridge near Boulder, Colorado is a concrete slab and girder bridge which was built in 1953. It was listed on the National Register of Historic Places in 2003.[1]

It brings Colorado State Highway 119 over Boulder Creek, and was under Federal rather than state management as the highway provides access from Boulder to the Roosevelt National Forest.[2]

It was designed by the U.S. Bureau of Public Roads.[3] It is Шаблон:Convert in total length, and Шаблон:Convert wide carrying a Шаблон:Convert-wide roadbed. It consists of three spans, the main one being Шаблон:Convert long. It has concrete abutments, wingwalls, and spill-through piers. Steel flex beams on the approach were a later addition.[2]

It was deemed technologically significant as one of the first concrete girder bridges in Colorado of a new type, having parabolically arched beams rather than flat ones, and supported by concrete spill through piers.[2]

References

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External links

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Шаблон:National Register of Historic Places


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  3. Шаблон:Cite web