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The Indian River Inlet Bridge (officially the Charles W. Cullen Bridge) is a cable-stayed bridge located in Sussex County, Delaware in the United States. It carries four lanes of Delaware Route 1 (DE 1) over the Indian River Inlet between the Indian River Bay and the Atlantic Ocean. The bridge is within Delaware Seashore State Park between Rehoboth Beach and Bethany Beach. The Indian River Inlet Bridge is maintained by the Delaware Department of Transportation (DelDOT). The bridge is long and wide, with a span of and overhead clearance of . Prior to the current bridge, four other bridges have spanned the Indian River Inlet, opened in 1934, 1940, 1952, and 1965, the latter widened by an additional span added in 1976. All were known informally as the Indian River Inlet Bridge, and all but the first officially were named the Charles W. Cullen Bridge. The 1965 bridge, a steel girder bridge, was subject to scouring from the inlet, leading to the need to replace it. Initial plans for an tied-arch bridge over the inlet in 2004 were over budget, and 2006 plans for a 1,400-foot (427-meter) cable-stayed bridge were cancelled because of early construction and legal problems. Construction of the current, 2,600-foot (792-meter) bridge began in 2008 as part of a design-build project, with Skanska awarded the contract to build the bridge. The current Indian River Inlet Bridge opened partially in January 2012 and completely in May 2012 at a cost of $150 million. ==Description== The Indian River Inlet Bridge crosses the Indian River Inlet connecting the Atlantic Ocean to the east and the Indian River Bay to the west. The bridge is located within Delaware Seashore State Park and carries DE 1 between Rehoboth Beach to the north and Bethany Beach to the south. It carries four 12-foot (3.7-meter) lanes of traffic (two northbound and two southbound), a 4-foot (1.2-meter) interior and 10-foot (3-meter) exterior shoulder in each direction, and a 12-foot (3.7-meter)-wide sidewalk on the east side of the bridge for pedestrians and bicycles. The Indian River Inlet Bridge is a cable-stayed bridge, consisting of four pylon towers with 152 stays supporting the bridge.〔 The pylons are located on land in order to avoid erosion from the inlet.〔 The bridge has a total length of and a total width of . The span of the bridge is with an overhead clearance of . The height of the pylon towers is above sea level.〔(【引用サイトリンク】title=Indian River Inlet Bridge - Bridge Facts )〕 The bridge has a fiber-optic system that monitors it for issues that could affect its structural integrity. The bridge is designed to last 100 years.〔 Officially named the Charles W. Cullen Bridge, the bridge is the fourth one at the Indian River Inlet to be named in honor of Charles W. Cullen (July 8, 1865–July 10, 1948), a lawyer and judge from Georgetown. He served on the Delaware State Highway Commission from 1930 to 1940 and as its chairman from 1938 to 1939, during which time he oversaw construction of the second bridge to span the Indian River Inlet, replacing a 1934 timber bridge. This bridge was dedicated in May 1940 as the Charles W. Cullen Bridge, but became popularly known as the Indian River Inlet Bridge.〔(【引用サイトリンク】title=Who Is Charles W. Cullen? )〕 The 2012 bridge's dedication plaque, located at the pedestrian entrance at the south end of the bridge, reads as follows:
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