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The Umpqua River Bridge is a swing-span bridge that spans the Umpqua River in Reedsport, Oregon. It consists of a central swing span flanked by two reinforced concrete arches on each end. The swing span was necessary to accommodate tall sailing vessels which were common on the Umpqua River. The final cost of the bridge was $510,500. Located at milepoint 211.11 on U.S. Route 101, this bridge is the only remaining swing-span bridge on the Oregon state highway system.〔(Spanning Oregon's Coast: Oregon has more than 200 historic bridges ) Brochure. Oregon Department of Transportation. Retrieved May 24, 2013.〕 This bridge was one of the many bridge projects of Conde McCullough, Oregon's Master Bridge Designer and Builder.〔 It opened to traffic on July 3, 1936.〔"Span at Newport Open For Traffic (Bay Bridge )" (September 6, 1936). ''The Sunday Oregonian'' (Portland), pp. 1–2.〕 The north end of the bridge is within Bolon Island Tideways State Scenic Corridor; the south is within Reedsport city limits. The bridge was added to the National Register of Historic Places on August 5, 2005. No dedication ceremony occurred at the time due to the unavailability of President Franklin Roosevelt. The ceremony was postponed indefinitely. At 3pm on September 8, 2011, the bridge was opened and closed, followed by a ribbon cutting, and cars from the 1910s, 1920s and 1930s crossed the bridge. It was finally officially dedicated to celebrate its 75th anniversary. ==Gallery== File:Umpqua River Bridge.jpg File:Umpqua River Bridge towards north.jpg|Umpqua River Bridge seen towards north File:Umpqua River Bridge Roadway.jpg 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Umpqua River Bridge」の詳細全文を読む スポンサード リンク
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