South Carolina Highway 403

South Carolina Highway 403
Route information
Maintained by SCDOT
Length	36.480 mi[1][2][3] (58.709 km)
Existed	1940[citation needed]–present
Major junctions
South end	SC 341 in Camp Branch
Major intersections	US 301 in Kelley Crossroads I-95 near Sardis US 76 in Timmonsville US 401 in Windhams Crossroads
North end	US 15 in Lees Crossroads
Location
Country	United States
State	South Carolina
Counties	Florence, Sumter, Darlington
Highway system
South Carolina State Highway System Interstate US State Scenic
← SC 402 → SC 410

South Carolina Highway 403 (SC 403) is a 36.480-mile (58.709 km) primary state highway in the U.S. state of South Carolina. It serves the town of Timmonsville and the surrounding rural area with the cities of Lake City and Hartsville.

SC 403 is a two-lane rural highway that traverses for 36.1 miles (58.1 km) beginning north of Lake City, along SC 341. Going through a northeasterly direction to Hobbs Crossroads, it then goes north to Sardis. Connecting with Interstate 95 (I-95) north of Sardis, it continues north connecting with U.S. Route 76 (US 76) near and then through Timmonsville. At Windhams Crossroads, it connects with US 401, where it provides access to I-20. At Lees Crossroads, it reaches its northern terminus, an intersection with US 15/SC 34.^[4] The vast majority of the landscape along the route is farmland, with the exception in and around Timmonsville.^[5][6][7]

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SC 403 was established in 1933 as a renumbering of US 301 from US 76 in Timmonsville to US 15 at Lees Crossroads. The entire route was paved in 1939. Around 1942, SC 403 was extended south SC 407 in Sparrows Crossroads. In 1948, SC 403 was retracted back to its original routing, leaving behind Hill Road (S-21-38). Between 1968 and 1970, SC 403 was extended south to its current southern terminus with SC 341, replacing part of SC 53 and nearly all of SC 309. Between 2005 and 2012, US 15 was realigned its Lees Crossroads intersection, removing an intersection corner bypass, giving an odd overlap with SC 403 for 0.2 miles (0.32 km) to where the corner bypass originally reconnected.

South Carolina Highway 309
Location	Hobbs Crossroads-Camp Branch, South Carolina
Length	11.9 mi[8] (19.2 km)
Existed	1940–1970

South Carolina Highway 309 (SC 309) was an 11.9-mile (19.2 km) state highway that was established in 1940 as a new primary routing, from SC 341 in Hobbs Crossroads, southeast to U.S. Route 301 (US 301). By 1942, it was extended southeast to reconnect with SC 341. Between 1968 and 1970, SC 309 was decommissioned and renumbered as an extension of SC 403 with only its westernmost piece downgraded to secondary road (Lynches River Road; S-42-14).

County	Location	mi[1][2][3]	km	Destinations	Notes
Florence	Camp Branch	0.000	0.000	SC 341 (Olanta Highway) – Lake City, Olanta, Bishopville	Southern terminus
	Byrds Crossroads	5.150	8.288	SC 541 (Old Number 4 Highway) – Olanta, Coward	To Lynches River County Park
	Kelley Crossroads	8.020	12.907	US 301 (Florence Highway) – Olanta, Florence
Sumter	Hobbs Crossroads	11.480	18.475	SC 53 south (Narrow Paved Road) to SC 341 – Olanta, Lynchburg, Sumter	Northern terminus of SC 53
Florence	​	15.778– 15.780	25.392– 25.395	I-95 – Florence, Savannah	I-95 exit 150
	​	19.400	31.221	US 76 west – Sumter	Southern end of US 76 concurrency
	Timmonsville	20.930	33.684	US 76 east (Smith Street) – Florence	Northern end of US 76 concurrency
Darlington	​	23.680	38.109	SC 340 north (Timmonsville Highway) – Darlington	Southern terminus of SC 340
	Windhams Crossroads	28.620	46.059	US 401 (Lamar Highway) to I-20 – Darlington, Lamar, Sumter
	Lees Crossroads	36.480	58.709	US 15 / SC 34 (Lydia Highway) – Bishopville, Hartsville, Darlington	Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus

• U.S. roads portal

• Media related to South Carolina Highway 403 at Wikimedia Commons
• Mapmikey's South Carolina Highways Page: Former SC 309
• Mapmikey's South Carolina Highways Page: SC 403
• Mapmikey's South Carolina Highways Page: Former SC 403 Alt.