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US 31–Pentwater River Bridge
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The US 31–Pentwater River Bridge is a three-span steel bridge that carries Oceana Drive (Old US Highway 31) over the Pentwater River in northern Hart, Michigan. It is listed on the National Register of Historic Places.
==History==
Prior to the construction of the current span, US 31 spanned the river in Hart on a bridge that had become a significant bottleneck by the early 1950s. In 1954, a replacement structure was designed by the Michigan State Highway Department. The bridge was designated as a Federal Aid project and the contract for construction was awarded to Gene Fewell. The bridge was completed the next year for $266,564.〔
Since construction, the bridge has been altered little and has undergone repairs only for maintenance reasons.〔 In 1988, the bridge was rehabilitated by replacing the pins and hangers of the non-redundant suspended spans. The bridge was listed on the National Register of Historic Places on December 20, 1999, and the Michigan Department of Transportation placed it on their list of historic bridges.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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