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South Carolina Bridge Conditions

Highway bridges longer than 20 feet in the 2025 National Bridge Inventory

Yearly inspection ratings. A poor rating does not mean a bridge is unsafe to use.

Highway bridges
9,504
Good condition
37.5%
3,568
Poor condition
6.3%
602
Weight-limited or closed
1,144

Bridges by county

CountyBridgesGoodPoorWeight-limitedAvg. year built
Abbeville County16241.4%2.5% (4)211975
Aiken County19832.3%10.1% (20)61977
Allendale County6921.7%13% (9)81968
Anderson County46227.9%4.1% (19)811971
Bamberg County8212.2%8.5% (7)91971
Barnwell County7618.4%0% (0)61966
Beaufort County7238.9%5.6% (4)21989
Berkeley County21736.4%3.7% (8)51980
Calhoun County619.8%3.3% (2)21959
Charleston County33941.6%2.7% (9)51989
Cherokee County20045%9% (18)371985
Chester County19135.6%10.5% (20)301976
Chesterfield County20137.3%4% (8)211975
Clarendon County17018.2%4.1% (7)101976
Colleton County23132.9%2.6% (6)21971
Darlington County17331.8%6.4% (11)201974
Dillon County12924.8%10.9% (14)11973
Dorchester County19928.6%2% (4)11972
Edgefield County12236.9%4.1% (5)231972
Fairfield County13935.3%5.8% (8)301976
Florence County27533.5%3.6% (10)161977
Georgetown County11434.2%6.1% (7)171978
Greenville County63655.2%7.4% (47)821982
Greenwood County14422.2%2.1% (3)171971
Hampton County11315.9%4.4% (5)101972
Horry County48046.9%5% (24)561986
Jasper County12923.3%1.6% (2)21970
Kershaw County17338.2%4% (7)81978
Lancaster County18228.6%9.3% (17)341967
Laurens County25432.7%4.3% (11)281975
Lee County9146.2%2.2% (2)31983
Lexington County23047.8%4.3% (10)91981
Marion County11233.9%8.9% (10)81974
Marlboro County9736.1%7.2% (7)41971
McCormick County6839.7%4.4% (3)91972
Newberry County21934.2%5% (11)351975
Oconee County21531.6%12.6% (27)541971
Orangeburg County27416.1%8% (22)231966
Pickens County29045.2%12.1% (35)691980
Richland County36749.6%4.6% (17)211980
Saluda County12540.8%4% (5)171974
Spartanburg County64351.9%10.1% (65)901980
Sumter County16640.4%10.2% (17)131981
Union County13236.4%15.9% (21)271976
Williamsburg County19439.7%6.2% (12)131977
York County28841.7%7.6% (22)371984

Frequently asked questions

How many bridges in South Carolina are in poor condition?
In the 2025 National Bridge Inventory, 602 of 9,504 highway bridges in South Carolina were rated poor (6.3% of rated bridges).
Which South Carolina counties have the most bridges in poor condition?
Among counties with at least 30 bridges, the highest shares rated poor are Union County (15.9%), Allendale County (13%), Oconee County (12.6%), Pickens County (12.1%), Dillon County (10.9%).

Source: Federal Highway Administration, National Bridge Inventory · 2025 data