Arkansas Highway 400
| Route information | ||||
|---|---|---|---|---|
| Maintained by ArDOT | ||||
| Length | 2.05 mi (3.30 km) | |||
| Major junctions | ||||
| West end | US 71 near Chester | |||
| East end | Lake Fort Smith State Park | |||
| Location | ||||
| Country | United States | |||
| State | Arkansas | |||
| Counties | Crawford | |||
| Highway system | ||||
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Arkansas Highway 400 (AR 400), also known as Shepherd Springs Road, is a short state highway in Crawford County. At just over 2 miles (3.2 km), it serves as the entrance road for Lake Fort Smith State Park from U.S. Route 71 (US 71).