| State: | MS |
| Type: | MS |
| Route: | 403 |
| Map Custom: | yes |
| Map Notes: | MS 403 highlighted in pink |
| Length Mi: | 3.303 |
| Length Ref: | [1] |
| Direction B: | North |
| Terminus B: | Old US 82 / Clarkson Road near Mathiston |
| Direction A: | South |
| Terminus A: | in Mathiston |
| Previous Type: | MS |
| Previous Route: | 397 |
| Next Type: | MS |
| Next Route: | 404 |
| Counties: | Webster |
Mississippi Highway 403 (MS 403) is a state highway in central Mississippi. The route starts at U.S. Route 82 (US 82) and MS 15 in Mathiston, and it travels north away from the town. It then turns east near Natchez Trace Parkway and then travels below it. MS 403 ends at the intersection of Clarkson Road and Old US 82 near a county highway maintenance barn. The route was designated by 1960, after a paved road extending from Mathiston was constructed around 1958. An extension northwards to MS 50 and MS 341 existed from 1960 to 1967.
All of MS 403 is located in Webster County.[2] The route is legally defined in Mississippi Code ยง 65-3-3,[3] and it is maintained by Mississippi Department of Transportation (MDOT) as part of the Mississippi State Highway System.[1]
MS 403 starts at an all-way stop intersection with US 82 and MS 15 in Mathiston, and it travels north as a continuation of Horton Street from MS 15. The route travels through a forested area within the town and intersects East Weber Drive south of the city limits.[2] The road then intersects McComb and Shine Jewel roads north of the city limits and continues north to Old US 82 and Stallings Road, which leads to the Natchez Trace Parkway. MS 403 turns east at the intersection, traveling along Old US 82 and through an underpass at the parkway. The road crosses over Big Black River and meets Clarkson Road.[2] State maintenance ends near a county highway maintenance barn,[4] [1] and the road continues as Old US 82.[2]
Around 1958, a paved road was constructed from Mathiston to a point 1.3miles north of the town. By 1960, the road was then designated as MS 403, and it was extended northwards to the intersection of MS 50 and MS 341. MS 403 was then truncated to a point near the Natchez Trace Parkway by 1967.