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 394

Fair

Over: SALLEY BRANCH

0.1MI E OF AIKEN CO LN, Orangeburg, SC

Built 1929 Load: 23.7 t ADT: 400

US 176 WB

Fair

Over: LAWSONS FORK CREEK

4.0 MI E INMAN, Spartanburg, SC

Built 1920 Load: 23.7 t ADT: 12,600

US 29

Fair

Over: SOUTHERN RAILROAD

1.0 MI E OF SPARTANBURG, Spartanburg, SC

Built 1940 Load: 23.7 t ADT: 27,100

S-43-25

Fair

Over: BRIAR BRANCH

8 MI S OF SUMTER, Sumter, SC

Built 1949 Load: 23.7 t ADT: 3,200

S-44-12

Fair

Over: SPEARS CREEK

8.3 MI NW UNION, Union, SC

Built 1947 Load: 23.7 t ADT: 550

S-45-573

Fair

Over: WHITE OAK SWAMP

7.4 MI SE CADES, Williamsburg, SC

Built 1973 Load: 23.7 t ADT: 125

SC 211

Fair

Over: BULLOCKS CREEK

3.4 MI E OF HICKORY GROVE, York, SC

Built 1959 Load: 23.7 t ADT: 2,400

S-46-1230

Fair

Over: TURKEY CREEK

1.8 MI E FORT MILL, York, SC

Built 1975 Load: 23.7 t ADT: 1,300

S-46-59

Fair

Over: BRYSON CREEK

6.2 MI S SHARON, York, SC

Built 1981 Load: 23.7 t ADT: 350

US 1

Fair

Over: BRIDGE CREEK

10 MI N OF AIKEN, Aiken, SC

Built 1922 Load: 24.0 t ADT: 4,000

SC 28

Fair

Over: ROCKY RIVER

11.2MI SE OF ANDERSON, Anderson, SC

Built 1955 Load: 24.0 t ADT: 3,500

SC 7

Fair

Over: ASHLEY RIVER

IN N CHARLESTON, Charleston, SC

Built 1953 Load: 24.0 t ADT: 46,800

S-12-828

Fair

Over: UNNAMED STREAM

1.5 MI NW FT LAWN, Chester, SC

Built 1983 Load: 24.0 t ADT: 275

S-13-916

Fair

Over: UNNAMED STREAM

1 MI SW JEFFERSON, Chesterfield, SC

Built 1981 Load: 24.0 t ADT: 25

S-13-40

Fair

Over: PHYLISS BRANCH

5 MI N JEFFERSON, Chesterfield, SC

Built 1982 Load: 24.0 t ADT: 600

S-21-68

Fair

Over: SPARROW SWAMP

6 MI SE TIMMONSVILLE, Florence, SC

Built 1973 Load: 24.0 t ADT: 350

S-21-1350

Fair

Over: AIRPORT CANAL

1MI SE FLORENCE AIRPORT, Florence, SC

Built 1979 Load: 24.0 t ADT: 1,350

S-21-55

Fair

Over: LONG BRANCH

5 MI W EFFINGHAM, Florence, SC

Built 1980 Load: 24.0 t ADT: 275

S-22-387

Fair

Over: BR OF CEDAR CREEK

10.5 MI SE ANDREWS, Georgetown, SC

Built 1960 Load: 24.0 t ADT: 300

US 701

Fair

Over: SKEEBO BRANCH

5 MI N OF LORIS, Horry, SC

Built 1958 Load: 24.0 t ADT: 5,900

SC 319

Fair

Over: CHINNERS MILL BR (NO. 3)

4.0MI E OF AYNOR, Horry, SC

Built 1970 Load: 24.0 t ADT: 3,900

S-26-1135

Fair

Over: STERRITT SWAMP

4 MI E OF CONWAY, Horry, SC

Built 1982 Load: 24.0 t ADT: 600

S-26-1180

Fair

Over: PAWLEYS SWAMP

7.0 MI SW OF CONWAY, Horry, SC

Built 1983 Load: 24.0 t ADT: 375

SC 170

Fair

Over: BEACH HILL CANAL

NR GA/SC LN, Jasper, SC

Built 1940 Load: 24.0 t ADT: 4,000

US 521 NB

Fair

Over: STREAM

7.2 MI N OF LANCASTER, Lancaster, SC

Built 1973 Load: 24.0 t ADT: 12,150

US 21

Fair

Over: TOMS BRANCH

6MI S OF CAYCE, Lexington, SC

Built 1922 Load: 24.0 t ADT: 5,300

S-34-774

Fair

Over: LITTLE REEDY CREEK

5 MI SE MARION, Marion, SC

Built 1983 Load: 24.0 t ADT: 125

S-35-165

Fair

Over: CROOKED CREEK

10 MI NE WALLACE, Marlboro, SC

Built 1971 Load: 24.0 t ADT: 350

SC 34

Fair

Over: SCOTTS CREEK

1.5 MI S W OF NEWBERRY, Newberry, SC

Built 1940 Load: 24.0 t ADT: 3,500

US 76

Fair

Over: RAMSEY CREEK

3.0MI W OF WESTMINSTER, Oconee, SC

Built 1941 Load: 24.0 t ADT: 3,000

S-38-65

Fair

Over: SWAMP CR-LITTLE BULL

5 MI E ORANGEBURG, Orangeburg, SC

Built 1949 Load: 24.0 t ADT: 750

SC 288

Fair

Over: OOLENOY RIVER

8.0 MI-N-PICKENS, Pickens, SC

Built 1969 Load: 24.0 t ADT: 550

S-43-46

Fair

Over: ROCKY BLUFF SWAMP #2

5 MII NE OF SUMTER, Sumter, SC

Built 1930 Load: 24.0 t ADT: 1,100

S-43-37

Fair

Over: RAFTING CREEK

4 MI SW REMBERT, Sumter, SC

Built 1981 Load: 24.0 t ADT: 275

SC 527

Fair

Over: BOGGY SWAMP

3 MI SE OF KINGSTREE, Williamsburg, SC

Built 1943 Load: 24.0 t ADT: 1,400

S-45-35

Fair

Over: BENNETT SWAMP

4.0 MI N GREELEYVILLE, Williamsburg, SC

Built 1949 Load: 24.0 t ADT: 750

SC 512

Fair

Over: PAISLEY SWAMP (NO. 2)

6 MI W OF STUCKEY, Williamsburg, SC

Built 1978 Load: 24.0 t ADT: 700

C-4-156

Fair

Over: DEEP STEP CR

10.5 MI SE OF ANDERSON, Anderson, SC

Built 1960 Load: 24.3 t ADT: 125

S-8-99

Fair

Over: BR OF FRENCH QUARTER CR

4.0 MI N WANDO, Berkeley, SC

Built 1975 Load: 24.3 t ADT: 800

S-10-1442

Fair

Over: SIMMONS CREEK

8 MI W OF CHAS, Charleston, SC

Built 1967 Load: 24.3 t ADT: 5,200

SC 9

Fair

Over: THOMPSON CREEK

CHESTERFIELD CITY LIMITS, Chesterfield, SC

Built 1932 Load: 24.3 t ADT: 9,200

S-13-54

Fair

Over: CANNONS CREEK

7 MI SE PAGELAND, Chesterfield, SC

Built 1974 Load: 24.3 t ADT: 300

S-13-52

Fair

Over: INDIAN CREEK

CITY LIMITS CHESTERFIELD, Chesterfield, SC

Built 1982 Load: 24.3 t ADT: 500

S-16-185

Fair

Over: SWIFT CREEK

IN DARLINGTON-WELL ST, Darlington, SC

Built 1978 Load: 24.3 t ADT: 1,000

S-20-30

Fair

Over: LITTLE CEDAR CREEK

7MI S WINNSBORO, Fairfield, SC

Built 1972 Load: 24.3 t ADT: 1,200

S-23-107

Fair

Over: REEDY RIVER

2.2 MI W MAULDIN, Greenville, SC

Built 1956 Load: 24.3 t ADT: 28,100

US 29

Fair

Over: REEDY RIVER

CITY OF GREENVILLE, Greenville, SC

Built 1959 Load: 24.3 t ADT: 29,000

US 17 BUS

Fair

Over: MIDWAY SWASH

IN MYRTLE BEACH, Horry, SC

Built 1936 Load: 24.3 t ADT: 31,300

S-26-1021

Fair

Over: SWAMP CREEK

5.4MI E AYNOR, Horry, SC

Built 1977 Load: 24.3 t ADT: 300

S-29-20

Fair

Over: CAMP CREEK

9.5MI SW LANCASTER, Lancaster, SC

Built 1975 Load: 24.3 t ADT: 350

Showing 1,801-1,850 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.