Indiana State Road 645
SR 645 highlighted in red | ||||
| Route information | ||||
| Maintained by INDOT | ||||
| Length | 1.969 mi (3.169 km) | |||
| Major junctions | ||||
| West end | US 231 in Madison Township | |||
| East end | Naval Surface Warfare Center Crane Division in Perry Township | |||
| Location | ||||
| Country | United States | |||
| State | Indiana | |||
| Counties | Daviess, Martin | |||
| Highway system | ||||
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State Road 645 (SR 645) is a state road in the southern section of the U.S. state of Indiana. Running for about 2 miles (3.2 km) in a general east–west direction, connecting Naval Surface Warfare Center Crane Division to U.S. Route 231 (US 231). SR 645 was originally introduced as small part of a much longer SR 58 in 1931. During the early 1940s SR 58 and SR 45 were rerouted around Crane Naval Ammunition Depot. SR 645 was commissioned in the early 1950s.