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Virginia State Route 175
Virginia State Route 175 (SR 175) is a primary state highway in the U.S. state of Virginia. Known as Chincoteague Road, the state highway runs from U.S. Route 13 (US 13) at Nash Corner east to Main Street in Chincoteague. SR 175 passes through the northeastern corner of Accomack County, providing the primary access to NASA's Wallops Flight Facility and both Chincoteague Island and the Virginia portion of Assateague Island. The route travels between the mainland and Chincoteague Island along the John B. Whealton Memorial Causeway.
In 1928, SR 520 was designated to run from US 13 in Oak Hall east toward Chincoteague Island, being extended onto the island in 1930. The route was extended south along US 13 and west to a railroad crossing west of Oak Hall in 1930. SR 520 became SR 175 in the 1933 Virginia state highway renumbering. SR 175 was extended south on Main Street in Chincoteague a year later and east on Beebe Road the following year, at which time a spur route known as SR 175Y was designated onto the northern portion of Main Street. The western terminus was moved to its current location in 1947, with the section west of US 13 becoming part of SR 703. SR 175 was routed to bypass Wallops Station to the south in 1954. In 1992, the section of SR 175 in Chincoteague, along with all of SR 175Y, was transferred to the secondary system. SR 175 was rerouted to bypass Marsh Island and a swing bridge over Chincoteague Channel with a new bascule bridge further north in 2010, tying into Main Street at Maddox Boulevard. The former swing bridge was demolished and a spur off the new bridge was built to serve Marsh Island.
==Route description==
Virginia State Route 175 (SR 175) begins at an intersection with US 13 (Lankford Highway) at Nash Corner south of the Maryland state line. The state highway heads east as a two-lane undivided road through a mix of farmland and woodland. Upon reaching the community of Wattsville, the highway intersects SR 679 (Fleming Road) and SR 798 (Mill Dam Road). The road crosses over Wallops Pond, an impoundment of Wattsville Branch of Mosquito Creek, onto Wallops Island. SR 175 heads east, intersecting SR 798 (Atlantic Avenue) again, then curves north through Wallops Island National Wildlife Refuge and around NASA's Wallops Flight Facility, a rocket launch site operated as a subsidiary of Goddard Space Flight Center. While heading north parallel to one of the flight facility's runways, the state highway passes the NASA Visitor Center. SR 175 curves to the east as it passes the main entrance to the flight facility.
SR 175 heads east onto the John B. Whealton Memorial Causeway between the mainland and Chincoteague Island. The causeway passes over marshland adjacent to the southern end of Chincoteague Bay and includes bridges over Mosquito Creek, Cockle Creek, Queen Sound Channel, and Wire Narrows. A fifth bridge curves to the north and then east around the northern end of Marsh Island to cross Black Narrows and Chincoteague Channel onto Chincoteague Island. The bridge has a bascule span over Chincoteague Channel and lands on Chincoteague Island north of the downtown area. Marsh Island is served by a connector bridge that meets SR 175 over Black Narrows. SR 175 reaches its eastern terminus at Main Street in the town of Chincoteague. The roadway continues east as Maddox Boulevard toward Assateague Island.〔〔〔
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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