US 401
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From: US 76 Sumter (Sumter County)
To: North Carolina State Line above McColl (Marlboro County)
Total Length: 94.2 miles  
Nationally, US 401 runs from Sumter to I-85/US 1 Norlina NC.
ROUTE LOG
US 76 Bus: 0 - 0
US 15: 0.3 - 0.3
US 76, US 378: 1.4 - 1.7
Lee-Sumter Line: 7.3 - 9.0
SC 154: 3.7 - 12.7
SC 527: 4.2 - 16.9
SC 341: 1.5 - 18.4
Darlington-Lee Line: 0.5 - 37.5
SC 403: 7.8 - 45.3
I-20 (exit 131): 0.8 - 46.1
US 52 EB: 8.7 - 54.8
SC 34, SC 151: 0.3 - 55.1
US 52 Bus: 2.8 - 57.9
US 15 SB: 10.8 - 68.7
US 52 WB: 2.1 - 70.8
Marlboro-Darlington Line: 1.2 - 72.0
SC 912: 5.9 - 77.9
SC 385: 3.2 - 81.1
SC 9 WB, SC 38 NB: 1.3 - 82.4
SC 9 Bus, SC 38 SB: 0.8 - 83.2
SC 9 EB: 1.2 - 84.4
SC 381: 8.1 - 92.5
NC STATE LINE: 1.7 - 94.2
Creation: Appeared in 1957 as a renumbering of US 15 ALT from Sumter via Darlington to Society Hill, then added to US 15 into North Carolina. This is the 2nd US 401 in South Carolina.

1955 Official
US 15 ALT Sumter to Society Hill
1955 Official
1957 Official
US 401 appears
1957 Official

Adjustments: In 1973, US 401 was placed on the new Darlington bypass. The old route became US 401/SC 34 CONN, SC 34, and US 52 Business.
Improvements: Fully paved when created
The first multilane section of US 401 appeared on on the Bennettsville Bypass in 1958.
The next section to be upgraded was the Darington Bypass in 1973.
No other parts of US 401 are shown as multilane on Official Maps.
Comment: US 401 does not make much sense as a through route in South Carolina. The non-multiplexed part between Sumter and Darlington was once part of today's SC 763 and was original SC 412 in the 1920's
US 401 has a two turn zig-zag in the town of Lamar.
A couple Marlboro County maps show US 401 Bus through Bennettsville (the US 15 bypass predates US 401 entirely). But many more do not and I believe US 401 Business did not exist there.

Previous US 401's:

1935 ROUTE LOG
US 17: 0 - 0
SC 64 EB: 0.2 - 0.2
SC 64 WB: 0.1 - 0.3
SC 65: 10.8 - 11.1
Dorchester-Colleton Line: 0.7 - 11.8
US 78: 9.1 - 20.9
US 178, SC 2: 6.2 - 27.1
Orangeburg-Dorchester Line: 4.2 - 31.3
SC 31: 5.6 - 36.9
SC 4 WB: 7.2 - 44.1
SC 45: 1.9 - 46.0
Clarendon-Orangeburg County: 1.5 - 47.5
SC 4 EB: 9.8 - 57.3
Sumter-Clarendon Line: 11.7 - 69.0
US 521 SB: 9.3 - 78.3
US 521 NB: 1.4 - 79.7
US 76: 0.2 - 79.9
SC 763: 0.3 - 80.2
SC 302: 11.0 - 91.2
Lee-Sumter Line: 0 - 91.2
SC 44: 5.1 - 96.3
SC 34 WB, SC 341 SB: 5.9 - 102.2
SC 341 NB: 1.4 - 103.6
Darlington-Lee Line: 6.4 - 110.0
SC 34 EB: 3.3 - 113.3
SC 403: 0.4 - 113.7
SC 35: 5.3 - 119.0
US 601 SB: 14.8 - 133.8
US 601 NB: 2.0 - 135.8
Marlboro-Darlington Line: 1.3 - 137.1
SC 9 WB: 11.0 - 148.1
SC 9 EB, SC 38 SB: 0.2 - 148.3
SC 38 NB: 0.6 - 148.9
SC 381: 8.8 - 157.7
NC STATE LINE: 1.7 -159.4
US 401 #1: Appeared 1933 as a renumbering of SC 30 from US 17 (now SC 63) Walterboro north via Santee, Sumter, Hartsville, and Bennettsville before heading into North Carolina at McColl.
In 1935, US 401 was renumbered as US 15. Today this is still US 15 except it crossed what is now Lake Marion 2 bridges to the west of I-95 (has the billboards on them); S-42-5 in Sumter; S-43-46 and S-43-325 over Whites Mill Pond; US 15 Business through Hartsville; S-35-167 and abandoned causeway at the Pee Dee River; SC 385, SC 385 CONN through Bennettsville.

1926 Official
SC 30 Santee to McColl
1926 Official
1933 Official
SC 30 replaced by US 401
1933 Official
1935 Official
US 15 southern part
1935 Official

1924 Blue Book
SC 30 projected to Santee
1924 Blue Book
1933 Official
SC 30 replaced by US 401
1933 Official
1935 Official
US 15 southern part
1935 Official


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Page last modified 26 August 2017