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The Capon Lake Whipple Truss Bridge ( ), formerly known as South Branch Bridge or Romney Bridge, is a historic Whipple truss bridge in Capon Lake, West Virginia. It is located off Carpers Pike (West Virginia Route 259) and crosses the Cacapon River. The bridge formerly carried Capon Springs Road (West Virginia Secondary Route 16) over the Cacapon River, thus connecting the unincorporated communities of Capon Springs with Capon Lake. The bridge's Whipple truss technology was developed by civil engineer Squire Whipple in 1847. J. W. Murphy further modified Whipple's truss design in 1859 by designing the first truss bridge with pinned eyebar connections. The design of the Capon Lake Whipple Truss Bridge incorporates Murphy's later modifications with double-intersections and horizontal chords, and is therefore considered a Whipple–Murphy truss bridge. The Capon Lake Whipple Truss Bridge is West Virginia's oldest remaining example of a Whipple truss bridge and its oldest extant metal truss bridge. The Capon Lake Whipple Truss Bridge was originally constructed in 1874 as part of the South Branch Bridge (or alternatively, the Romney Bridge), a larger two-span Whipple truss bridge conveying the Northwestern Turnpike (U.S. Route 50) across the South Branch Potomac River near Romney. The larger Whipple truss bridge replaced an 1838 wooden covered bridge that was destroyed during the American Civil War. In 1874, T. B. White and Sons were charged with the construction of a Whipple truss bridge over the South Branch; that bridge served travelers along the Northwestern Turnpike for 63 years until a new bridge was constructed in 1937. Dismantled in 1937, the bridge was relocated to Capon Lake in southeastern Hampshire County to carry Capon Springs Road (West Virginia Secondary Route 16) between West Virginia Route 259 and Capon Springs. The bridge was dedicated on August 20, 1938. In 1991, a new bridge was completed to the south, and the Capon Lake Whipple Truss Bridge was preserved in place by the West Virginia Division of Highways, due to its rarity, age, and engineering significance. The Capon Lake Whipple Truss Bridge was listed on the National Register of Historic Places on December 15, 2011. == Geography and setting == The Capon Lake Whipple Truss Bridge is located in a predominantly rural agricultural and forested area of southeastern Hampshire County within the Cacapon River valley.〔〔 Baker Mountain, a forested narrow anticlinal mountain ridge, rises to the immediate west, and the western rolling foothills of the anticlinal Great North Mountain rise to the bridge's east.〔 The confluence of Capon Springs Run with the Cacapon River lies just north (downstream) of the bridge.〔 George Washington National Forest is located to the bridge's southeast, covering the forested area south of Capon Springs Road.〔 The bridge is located along Carpers Pike (West Virginia Route 259) in the unincorporated community of Capon Lake, southwest of Yellow Spring and northeast of the town of Wardensville.〔 The historic Capon Springs Resort and the unincorporated community of Capon Springs are located east of Capon Lake on Capon Springs Road (West Virginia Secondary Route 16).〔〔 The bridge is located immediately north (downstream) of the intersection of Carpers Pike with Capon Springs Road, which is carried across the Cacapon River via the current Capon Lake Bridge, a steel stringer bridge built in 1991 to replace the Whipple truss bridge for conveying vehicle traffic.〔〔 The property containing the Capon Lake Whipple Truss Bridge is less than in size. 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「Capon Lake Whipple Truss Bridge」の詳細全文を読む スポンサード リンク
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