State highway in Indiana, United States
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.
- ^ Indiana Department of Transportation (July 2015). Reference Post Book (PDF). Indianapolis: Indiana Department of Transportation. Retrieved September 19, 2016.