State profile · Near median Poor share

South Carolina bridge safety

Condition ratings, load ratings, and Poor-condition data for every public highway bridge in South Carolina, based on the FHWA National Bridge Inventory.

5,396
Public bridges
34.8%
Good condition
6.1%
Poor condition

Data updated May 2026

Total Bridges

5,396

Public highway bridges in South Carolina

Good Condition

34.8%

1,876 bridges rated 7-9

-15.2pp vs 50% benchmark

Poor Condition

6.1%

329 bridges whose lowest applicable component is rated 0-4

-0.9pp vs national avg 7.0%

South Carolina vs national bridge condition

South Carolina - Good condition share 34.8%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

South Carolina - Poor-condition share 20.3%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

South Carolina vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below South Carolina on the same metric.

ID

Idaho

5.51% top marginal rate
Structure
Progressive
Burden @ $100K
$1,742

MS

Mississippi

5.92% top marginal rate
Structure
Progressive
Burden @ $100K
$16,823
Selected

SC

South Carolina

6.10% top marginal rate
Structure
Progressive
Burden @ $100K
$5,396

WI

Wisconsin

6.13% top marginal rate
Structure
Progressive
Burden @ $100K
$14,851

NC

North Carolina

6.16% top marginal rate
Structure
Progressive
Burden @ $100K
$18,901

Bridges Needing Most Attention in South Carolina

Six lowest-condition bridges in South Carolina, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

All Bridges in South Carolina

S-25-27

Fair

Over: COOSAWHATCHIE RIVER

7MI SE VARNVILLE, Hampton, SC

Built 2002 Load: 36.3 t ADT: 500

US 501 NB

Fair

Over: BACK SWAMP

0.75 MI E. ARIELS X-RDS, Marion, SC

Built 1974 Load: 36.3 t ADT: 9,400

US 501 NB

Fair

Over: LITTLE PEE DEE SWP-2

1.7 MI W. GALIVANTS FER, Marion, SC

Built 1974 Load: 36.3 t ADT: 9,650

U.S. 221

Fair

Over: J. STROM THURMOND DAM

J.Strom Thurmond Dam, Oconee, SC

Built 1950 Load: 36.3 t ADT: 1,350

SC 4

Fair

Over: ROCKY SWAMP CREEK

8MI W OF NEESES, Orangeburg, SC

Built 1922 Load: 36.3 t ADT: 1,700

S-41-59

Fair

Over: TRIB TO CLOUDS CREEK

10.9 MI NE OF SALUDA, Saluda, SC

Built 1985 Load: 36.3 t ADT: 550

C-4-819

Fair

Over: WEEMS CR

10.3 MI SW OF ANDERSON, Anderson, SC

Built 1967 Load: 36.6 t ADT: 125

SC 703/PALM BLVD

Fair

Over: BREACH INLET

ISLE OF PALMS, Charleston, SC

Built 2002 Load: 36.6 t ADT: 9,200

S-10-60

Fair

Over: FILBIN CREEK

N. CHARLESTON, Charleston, SC

Built 1992 Load: 36.6 t ADT: 33,000

SC 102

Fair

Over: JUNIPER CREEK

0.6 MI S OF PATRICK, Chesterfield, SC

Built 1947 Load: 36.6 t ADT: 2,200

SC 303

Fair

Over: ASHEPOO RIVER

10.0 MI S OF WALTBR, Colleton, SC

Built 1975 Load: 36.6 t ADT: 1,650

S-16-35

Fair

Over: BLACK CREEK

5MI N FLORENCE, Darlington, SC

Built 1992 Load: 36.6 t ADT: 3,000

S-16-30

Fair

Over: MIDDLE SWAMP

8 MI S DARLINGTON, Darlington, SC

Built 1995 Load: 36.6 t ADT: 3,300

US 701

Fair

Over: BROWN SWAMP

2.0MI NW OF CONWAY, Horry, SC

Built 1920 Load: 36.6 t ADT: 21,900

SC 905

Fair

Over: KINGSTON LAKE

CITY OF CONWAY, Horry, SC

Built 1962 Load: 36.6 t ADT: 10,400

I-95 NB

Fair

Over: SAND ISLAND SWAMP

2MI N OF GA/SC LN, Jasper, SC

Built 1976 Load: 36.6 t ADT: 31,800

SC 72

Fair

Over: ALLISONS BRANCH #2

12.6 MI E OF LAURENS, Laurens, SC

Built 1955 Load: 36.6 t ADT: 2,400

SC 295

Fair

Over: FAIRFOREST CREEK

3.7 MI W SPTBRG AT S-78, Spartanburg, SC

Built 1930 Load: 36.6 t ADT: 12,400

C-42-948

Fair

Over: JIMMIES CR

5.5 MI E WOODRUFF, Spartanburg, SC

Built 1992 Load: 36.6 t ADT: 322

S-9-173

Fair

Over: LITTLE BEAVER CREEK

8 MI NE ST MATHEWS, Calhoun, SC

Built 1935 Load: 36.9 t ADT: 100

SC 102

Fair

Over: CEDAR CREEK

DARLINGTON CO LN, Chesterfield, SC

Built 1947 Load: 36.9 t ADT: 2,200

SC 64/BELLS HWY

Fair

Over: DRY BRANCH

3.0 MI S OF LODGE, Colleton, SC

Built 1931 Load: 36.9 t ADT: 2,800

I-95 SB

Fair

Over: EDISTO RIVER

8.2 MI S ST GEORGE, Dorchester, SC

Built 1974 Load: 36.9 t ADT: 25,400

S-19-53

Fair

Over: DEEP STEP BRANCH

16.3 MI SW EDGEFIELD, Edgefield, SC

Built 1985 Load: 36.9 t ADT: 650

S-24-58

Fair

Over: TURNER CREEK

3.3MI N GREENWOOD, Greenwood, SC

Built 1989 Load: 36.9 t ADT: 4,500

SC 3

Fair

Over: PEN CREEK

1.5 MI W OF JASPER CO LN, Hampton, SC

Built 1948 Load: 36.9 t ADT: 600

SC 9 NB

Fair

Over: CANE CREEK

4.0 MI W OF LANCASTER, Lancaster, SC

Built 1965 Load: 36.9 t ADT: 6,150

US 76 BUS

Fair

Over: CSX RAILROAD

MAIN ST LAURENS, Laurens, SC

Built 1937 Load: 36.9 t ADT: 5,700

SC 9 SB

Fair

Over: NAKED CREEK

4 MI SE OF WALLACE, Marlboro, SC

Built 1975 Load: 36.9 t ADT: 4,350

S-46-23

Fair

Over: BULLOCKS

6.0 MI W YORK, York, SC

Built 1992 Load: 36.9 t ADT: 325

S-46-658

Fair

Over: BIG DUTCHMANS CREEK

6.0 MI NW ROCK HILL, York, SC

Built 1992 Load: 36.9 t ADT: 2,400

S-4-718

Fair

Over: TRIB WATERMELON CREEK

4.8 MI W WILLIAMSTON, Anderson, SC

Built 1960 Load: 37.3 t ADT: 375

S-5-20

Fair

Over: BRIER BRANCH

3.0MI NE BAMBERG, Bamberg, SC

Built 1996 Load: 37.3 t ADT: 475

S-14-50

Fair

Over: POCATALIGO RIVER SWAMP

9MI E MANNING, Clarendon, SC

Built 1990 Load: 37.3 t ADT: 450

S-14-50

Fair

Over: BREAKFAST BRANCH

8.5 MI N OF MANNING, Clarendon, SC

Built 1997 Load: 37.3 t ADT: 450

S-24-39

Fair

Over: SALUDA RIVER

8.7 MI NE GREENWOOD, Greenwood, SC

Built 1986 Load: 37.3 t ADT: 3,000

S-25-29

Fair

Over: SALKEHATCHIE RIVER

11MI NE HAMPTON, Hampton, SC

Built 1996 Load: 37.3 t ADT: 150

S-25-141

Fair

Over: DEEP BRANCH

7MI E VARNVILLE, Hampton, SC

Built 1999 Load: 37.3 t ADT: 125

S-38-1203

Fair

Over: MILL BRANCH

5MI NW ORANGEBURG, Orangeburg, SC

Built 1992 Load: 37.3 t ADT: 4,500

SC 395

Fair

Over: SALUDA RIVER

12.56MI NE SALUDA, Saluda, SC

Built 1974 Load: 37.3 t ADT: 900

I-26 EB

Fair

Over: BOWEN LAKE (S PAC RV)

4.0 MI N OF INMAN, Spartanburg, SC

Built 1960 Load: 37.3 t ADT: 16,700

SC 49

Fair

Over: KIRKPATRICK BRANCH

13.2 MI S OF YORK, York, SC

Built 1937 Load: 37.3 t ADT: 1,450

C-4-29

Fair

Over: ROCK CR

8.9 MI NE OF ANDERSON, Anderson, SC

Built 1965 Load: 37.6 t ADT: 3,200

I-526 EB

Fair

Over: ASHLEY RIVER&BULL CREEK

5.9 MI NW CHARLESTON, Charleston, SC

Built 1980 Load: 37.6 t ADT: 39,650

SC 150

Fair

Over: GOUCHER CREEK

7.9 MI S GAFFNEY, Cherokee, SC

Built 1973 Load: 37.6 t ADT: 2,600

S-12-25

Fair

Over: BRUSHY FORK CREEK

4.7 MI SW CHESTER, Chester, SC

Built 1991 Load: 37.6 t ADT: 100

S-14-121

Fair

Over: TEARCOAT BRANCH

8MI N MANNING, Clarendon, SC

Built 1989 Load: 37.6 t ADT: 75

S-14-129

Fair

Over: TRIB TO POCOTALIGO_SWAMP

IN MANNING, Clarendon, SC

Built 1991 Load: 37.6 t ADT: 125

I-20 WB

Fair

Over: JEFFERIES CREEK

8.5MI W OF FLORENCE, Darlington, SC

Built 1973 Load: 37.6 t ADT: 15,450

US 52 EB

Fair

Over: LYNCHES RIVER SWAMP

4.0MI N OF COWARD, Florence, SC

Built 1976 Load: 37.6 t ADT: 7,350

Showing 2,751-2,800 of 5,396 bridges

Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.