Casville is an unincorporated community in Caswell County, North Carolina, United States, located at the crossroads of U.S. Route 158 and Ashland Rd/Park Springs Rd. Travelers along US 158 notice a drastic change in the speed limit from 55 mph (88.5 km/h) to 35 mph (56.3 km/h) as they approach the community's only caution traffic signal; the speed limit returns to  after leaving the crossroads area.
Casville is a hamlet in Caswell County, North Carolina, United States, situated at the intersection of U.S. Route 158 and Ashland Rd/Park Springs Rd. Drivers on US 158 notice a significant reduction in speed limit from 55 mph (88.5 km/h) to 35 mph (56.3 km/h) as they approach the community's sole traffic signal; the speed limit resumes to its original value after leaving the intersection area.