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

SC 33

Fair

Over: LITTLE BULL SWAMP

8MI NE OF ORANGEBURG, Orangeburg, SC

Built 1938 Load: 32.1 t ADT: 2,000

S-39-100

Fair

Over: BIG ESTATOE

10.0 MI NW PICKENS, Pickens, SC

Built 1990 Load: 32.1 t ADT: 150

SC 16

Fair

Over: SMITH BRANCH

2 MI NW OF COLUMBIA, Richland, SC

Built 1943 Load: 32.1 t ADT: 16,800

RAMP ON I-20 WB

Fair

Over: STREAM

5 MI NE OF COLUMBIA, Richland, SC

Built 1965 Load: 32.1 t ADT: 6,700

S-2-1020

Fair

Over: SHAWS CREEK

4.1MI SE TRENTON, Aiken, SC

Built 1970 Load: 32.4 t ADT: 325

US 21

Fair

Over: EDISTO RIVER

.2 MI NW US 21 & SC 61, Bamberg, SC

Built 1927 Load: 32.4 t ADT: 1,350

US 52 EB

Fair

Over: LAUREL CREEK

10.2MI SW MONCKS CRN, Berkeley, SC

Built 1971 Load: 32.4 t ADT: 20,000

US 52 EB

Fair

Over: LAUREL CREEK SWAMP

10.2MI SW MONCKS CORNER, Berkeley, SC

Built 1971 Load: 32.4 t ADT: 20,000

S-9-43

Fair

Over: HALFWAY SWAMP

4 MI E ST MATHEWS, Calhoun, SC

Built 1935 Load: 32.4 t ADT: 300

S-11-165

Fair

Over: THICKETTY CREEK

4.7MI NW GAFFNEY, Cherokee, SC

Built 1974 Load: 32.4 t ADT: 275

SC 901

Fair

Over: LITTLE ROCKY CREEK

3.6MI N OF FAIRFIELD CO L, Chester, SC

Built 1948 Load: 32.4 t ADT: 225

I-77 NB

Fair

Over: SCL RAILROAD

1.8 MI S YORK CO LINE, Chester, SC

Built 1978 Load: 32.4 t ADT: 27,600

I-77 SBL

Fair

Over: FISHING CREEK

1.3 MI S YORK CO LINE, Chester, SC

Built 1979 Load: 32.4 t ADT: 27,600

SC 102

Fair

Over: NORTH PRONG CREEK

3.7 MI S OF CHESTERFIELD, Chesterfield, SC

Built 1948 Load: 32.4 t ADT: 1,650

US 15/HWY 15

Fair

Over: POLK SWAMP

3.4 MI S ST GEORGE, Dorchester, SC

Built 1931 Load: 32.4 t ADT: 2,700

US 25

Fair

Over: BEAVERDAM CK OVERFLOW

IN EDGEFIELD S OF SC 23, Edgefield, SC

Built 1915 Load: 32.4 t ADT: 6,800

S-20-362

Fair

Over: LITTLE CEDAR CR

7.3 MI S WINNSBORO, Fairfield, SC

Built 1981 Load: 32.4 t ADT: 200

SC 261

Fair

Over: PENNY ROYAL CREEK

17 MI N GEORGETOWN, Georgetown, SC

Built 1948 Load: 32.4 t ADT: 1,000

US 17 ALT

Fair

Over: COMBAHEE SWAMP #1

1.3 MI NE YEMASSEE, Hampton, SC

Built 1940 Load: 32.4 t ADT: 1,700

US 601

Fair

Over: WHIPPY SWAMP

4.0 MI NE HAMPTON, Hampton, SC

Built 1958 Load: 32.4 t ADT: 1,100

S-29-72

Fair

Over: TRIB LITTLE LYNCHES RV

1MI NE HEATH SPRINGS, Lancaster, SC

Built 1924 Load: 32.4 t ADT: 425

S-30-48

Fair

Over: SALUDA RIVER

16.9 MI SW LAURENS, Laurens, SC

Built 1975 Load: 32.4 t ADT: 125

SC 183

Fair

Over: CONEROSS CREEK

3.0 MI N OF WESTMINSTER, Oconee, SC

Built 1958 Load: 32.4 t ADT: 2,800

US 21

Fair

Over: EDISTO RIVER SWAMP

8MI S OF BRANCHVILLE, Orangeburg, SC

Built 1956 Load: 32.4 t ADT: 1,600

SC 137

Fair

Over: 12 MILE CREEK

1.3 MI NW OF NORRIS, Pickens, SC

Built 1972 Load: 32.4 t ADT: 3,100

C-40-1165

Fair

Over: VISTA GREENWAY TRAIL

CITY OF COLUMBIA, Richland, SC

Built 1964 Load: 32.4 t ADT: 150

S-41-25

Fair

Over: CLOUDS CREEK

12.0 MI E SALUDA, Saluda, SC

Built 1971 Load: 32.4 t ADT: 100

US 176 WB

Fair

Over: LAWSON FORK CREEK

4.0 MI E INMAN, Spartanburg, SC

Built 1932 Load: 32.4 t ADT: 12,600

S-46-714

Fair

Over: BR TO TAYLORS CREEK

4.0 MI S ROCK HILL, York, SC

Built 1998 Load: 32.4 t ADT: 1,350

SC 460

Fair

Over: STEELE CREEK

3 MI NORTH OF FORT MILL, York, SC

Built 2007 Load: 32.4 t ADT: 11,100

S-1-33

Fair

Over: DOUBLE BRANCH

3.2 MI SE ABBEVILLE, Abbeville, SC

Built 1987 Load: 32.7 t ADT: 325

C-2-3114

Fair

Over: POLE BRANCH

N AUGUSTA, Aiken, SC

Built 1976 Load: 32.7 t ADT: 175

US 301

Fair

Over: SALKEHATCHIE RIVER SWAMP

1/2MI N OF ULMERS, Allendale, SC

Built 1959 Load: 32.7 t ADT: 2,500

S-4-71

Fair

Over: LAKE HARTWELL

8.8MI NW ANDERSON, Anderson, SC

Built 1962 Load: 32.7 t ADT: 2,600

US 52

Fair

Over: REDIVERSION CANAL

16.3 MI-NE-MONCKS CORNER, Berkeley, SC

Built 1983 Load: 32.7 t ADT: 4,300

S-9-132

Fair

Over: SOUTHERN RR

5 MI NE ST MATHEWS, Calhoun, SC

Built 1993 Load: 32.7 t ADT: 25

SC 213

Fair

Over: LITTLE RIVER

5 MI N OF JENKINSVILLE, Fairfield, SC

Built 1978 Load: 32.7 t ADT: 1,150

S-21-49

Fair

Over: LYNCHES RIVER BRANCH

5 MI NW JOHNSONVILLE, Florence, SC

Built 1974 Load: 32.7 t ADT: 375

S-21-55

Fair

Over: LYNCHES RIVER

4 MI NW COWARD, Florence, SC

Built 1982 Load: 32.7 t ADT: 950

US 501

Fair

Over: CHINNERS MILL BRANCH

1.0MI E OF AYNOR, Horry, SC

Built 1948 Load: 32.7 t ADT: 25,500

US 501

Fair

Over: BRUNSON CREEK

8.8 MI W OF CONWAY, Horry, SC

Built 1948 Load: 32.7 t ADT: 25,700

US 76

Fair

Over: BOGGY BRANCH

4 MI N OF FLOYD, Horry, SC

Built 1961 Load: 32.7 t ADT: 3,200

SC 56

Fair

Over: DUNCAN CREEK

9.8 MI NE OF LAURENS, Laurens, SC

Built 1937 Load: 32.7 t ADT: 950

S-34-60

Fair

Over: LITTLE PEE DEE RIVER

3MI W NICHOLS, Marion, SC

Built 1974 Load: 32.7 t ADT: 1,600

US 176

Fair

Over: DUNCAN CREEK

14.9 MI N E OF NEWBERRY, Newberry, SC

Built 1952 Load: 32.7 t ADT: 3,600

SC 210

Fair

Over: CATTLE CREEK

8MI NE OF BRANCHVILLE, Orangeburg, SC

Built 1925 Load: 32.7 t ADT: 1,150

US 178

Fair

Over: TRIB ROCKY BOTTOM CK

10.6 MI-NW-PICKENS, Pickens, SC

Built 1932 Load: 32.7 t ADT: 800

S-40-1196

Fair

Over: WINDSOR LAKE

2 MI NE OF DENTSVILLE, Richland, SC

Built 1983 Load: 32.7 t ADT: 3,200

HILL STREET

Fair

Over: WILDCAT CREEK

W OF LEE RD, Richland, SC

Built 1999 Load: 32.7 t ADT: 4,100

I-85

Fair

Over: GRAYS CREEK

6.5 MI W SPARTANBURG, Spartanburg, SC

Built 1959 Load: 32.7 t ADT: 102,300

Showing 2,551-2,600 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.