State profile · Near national median SD

South Carolina bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in South Carolina — drawn straight from the FHWA National Bridge Inventory.

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

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 rated 0-4

Structurally Deficient

6.1%

329 bridges flagged for repair priority

-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 — Structurally deficient 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 on the structurally deficient leaderboard (lower share = better)

States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below South Carolina on the same metric.

16

Idaho

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

28

Mississippi

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

45

South Carolina

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

55

Wisconsin

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

37

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 composite NBI rating. Each is inspected at least every 24 months.

All Bridges in South Carolina

S-23-507

Poor

Over: LANGSTON CREEK

2.7 MI NW GREENVILLE, Greenville, SC

Built 1964 Load: 5.8 t ADT: 1,000

S-11-320

Poor

Over: DOOLITTLE CREEK

2.4MI S BLACKSBURG, Cherokee, SC

Built 1964 Load: 6.8 t ADT: 350

US 15 SB

Poor

Over: POCOTALIGO RIVER

2 MI S OF SUMTER, Sumter, SC

Built 1935 Load: 6.8 t ADT: 10,200

S-23-102

Poor

Over: ARMSTRONG CREEK

3.5 MI SW TRAVELERS REST, Greenville, SC

Built 1960 Load: 7.5 t ADT: 1,300

US 29

Poor

Over: CHEROKEE CREEK

3.8 MI E OF GAFFNEY, Cherokee, SC

Built 1931 Load: 7.8 t ADT: 8,500

S-29-294

Poor

Over: BRANCH

3 MI NE KERSHAW, Lancaster, SC

Built 1940 Load: 7.8 t ADT: 125

SC 49

Poor

Over: FAIRFOREST CREEK

4.3 MI SW OF UNION, Union, SC

Built 1931 Load: 7.8 t ADT: 3,200

C-36-503

Poor

Over: CANNONS CREEK

4.9MI NE OF NEWBERRY, Newberry, SC

Built 1971 Load: 8.1 t ADT: 125

C-36-787

Poor

Over: TRIB TO CANNONS CREEK

5.9MI SE OF NEWBERRY, Newberry, SC

Built 1991 Load: 8.1 t ADT: 125

C-42-3787

Poor

Over: NS RR

RIVERSIDE - SPARTANBURG, Spartanburg, SC

Built 1945 Load: 8.1 t ADT: 225

SC 421

Poor

Over: LITTLE HORSE CREEK

1 MI E OF CLEARWATER, Aiken, SC

Built 1926 Load: 8.7 t ADT: 8,700

S-23-562

Poor

Over: ENOREE RIVER

6.1 MI W GREER, Greenville, SC

Built 1965 Load: 8.7 t ADT: 1,450

S-46-1104

Poor

Over: CROWDERS CREEK

5.4 MI NE CLOVER, York, SC

Built 1972 Load: 8.7 t ADT: 450

S-37-59

Poor

Over: TRIB TO CANE CREEK

2.5 MI NW WALHALLA, Oconee, SC

Built 1951 Load: 9.4 t ADT: 500

S-10-98

Poor

Over: GUERIN CREEK

15.4 MI E CHAS, Charleston, SC

Built 1974 Load: 9.7 t ADT: 350

C-24-289

Poor

Over: CUFFYTOWN CREEK

13.0 MI SE OF G'WD, Greenwood, SC

Built 1975 Load: 9.7 t ADT: 200

S-36-342

Poor

Over: BUSH RIVER

6.4 MI NW NEWBERRY, Newberry, SC

Built 1963 Load: 9.7 t ADT: 250

C-42-787

Poor

Over: CSXT RR

FOREST ST IN SPARTANBURG, Spartanburg, SC

Built 1913 Load: 9.7 t ADT: 3,700

S-20-54

Poor

Over: MILLS CREEK

6MI SW WINNSBORO, Fairfield, SC

Built 1955 Load: 10.0 t ADT: 250

US 52 EBL

Poor

Over: LYNCHES RIVER

5.5 MI N OF COWARD, Florence, SC

Built 1974 Load: 10.0 t ADT: 7,350

C-42-10

Poor

Over: CEDAR SHOALS CR

14.1 MI SE WOODRUFF, Spartanburg, SC

Built 1940 Load: 10.0 t ADT: 225

US 17 SB

Poor

Over: NORTH SANTEE RIVER

16MI SW GEORGETOWN, Georgetown, SC

Built 1951 Load: 10.4 t ADT: 4,650

S-34-32

Poor

Over: REEDY CREEK

TOWN OF RAINS, Marion, SC

Built 1977 Load: 10.7 t ADT: 1,250

S-29-204

Poor

Over: FLAT CREEK

12.5MI E LANCASTER, Lancaster, SC

Built 1939 Load: 11.0 t ADT: 100

S-1-37

Poor

Over: HOGSKIN CREEK

3.0MI W DUE WEST, Abbeville, SC

Built 1959 Load: 11.3 t ADT: 250

SC 64/BELLS HWY

Poor

Over: BUCKHEAD CREEK TRIB

13.2 MI W OF WALTBR, Colleton, SC

Built 1931 Load: 11.3 t ADT: 2,800

SC 114

Poor

Over: SANDY RUN CREEK

1.0 MI S OF CHEROKEECO LN, Union, SC

Built 1954 Load: 11.3 t ADT: 850

SC 527

Poor

Over: CLAPP SWAMP

6.5 MI NW OF KINGSTREE, Williamsburg, SC

Built 1992 Load: 11.3 t ADT: 2,700

S-12-525

Poor

Over: WHITESIDES BRANCH

1MI NE EDGEMOOR, Chester, SC

Built 1967 Load: 11.7 t ADT: 150

S-42-242

Poor

Over: SOUTH TYGER RIVER

2.0 MI S LYMAN, Spartanburg, SC

Built 1955 Load: 11.7 t ADT: 4,200

S-36

Poor

Over: BRANCH OF MOUNTAIN CREEK

12 MI N OF EDGEFIELD, Edgefield, SC

Built 1948 Load: 12.0 t ADT: 175

C-38-498

Poor

Over: COW CASTLE CREEK

1MI NW BOWMAN (OC-4212), Orangeburg, SC

Built 1939 Load: 12.0 t ADT: 200

S-44-73

Poor

Over: MILL CREEK

3.5 MI NE JONESVILLE, Union, SC

Built 1960 Load: 12.0 t ADT: 650

S-44-4

Poor

Over: BIG BROWNS CREEK

4.1 MI N UNION, Union, SC

Built 1977 Load: 12.0 t ADT: 1,100

SC 265

Poor

Over: LYNCHES RIVER

LANCASTER CO LN, Chesterfield, SC

Built 1938 Load: 12.6 t ADT: 1,000

S-37-206

Poor

Over: TRIB TO BEAVER DAM CK

8 MI S SENECA, Oconee, SC

Built 1958 Load: 12.6 t ADT: 275

C-4-866

Poor

Over: WILSON CR

9.4 MI SW OF ANDERSON, Anderson, SC

Built 1956 Load: 13.0 t ADT: 125

S-20-15

Poor

Over: SAWNEYS CREEK

14.3MI SE WINNSBORO, Fairfield, SC

Built 1957 Load: 13.0 t ADT: 225

S-11-401

Poor

Over: BR OF BOWEN RIVER

5.2MI NW BLACKSBURG, Cherokee, SC

Built 1968 Load: 13.3 t ADT: 350

S-22-179

Poor

Over: BLACK RIVER

15.0 MI-N-GEORGETOWN, Georgetown, SC

Built 1976 Load: 13.3 t ADT: 1,700

S-46-181

Poor

Over: LITTLE ALLISON CREEK

5.2 MI E YORK, York, SC

Built 1951 Load: 13.3 t ADT: 475

S-38-200

Poor

Over: BUSHY BRANCH

6MI S ELLOREE, Orangeburg, SC

Built 1953 Load: 13.6 t ADT: 325

S-46-103

Poor

Over: TOOLS FORK CREEK

3.0 MI W ROCK HILL, York, SC

Built 1968 Load: 13.6 t ADT: 650

US 21 SB

Poor

Over: BEAUFORT RIVER

SOUTHEAST OF BEAUFORT, Beaufort, SC

Built 1979 Load: 13.9 t ADT: 12,000

SC 200

Poor

Over: CAMP CREEK

4.1 MI N OF LANCASTER, Lancaster, SC

Built 1938 Load: 13.9 t ADT: 6,500

SC 3

Poor

Over: KING CREEK

14 MI SW OF ALLENDALE, Allendale, SC

Built 1957 Load: 14.3 t ADT: 950

S-29-12

Poor

Over: BEAR CREEK

SPRINGDALE RD-LANCASTER, Lancaster, SC

Built 1970 Load: 14.3 t ADT: 7,300

S-42-184

Poor

Over: PACOLET RIVER

3.0 MI SW LANDRUM, Spartanburg, SC

Built 1955 Load: 14.3 t ADT: 500

S-20-99

Poor

Over: ROCKY CREEK

17MI NW WINNSBORO, Fairfield, SC

Built 1960 Load: 14.6 t ADT: 100

S-23-115

Poor

Over: MIDDLE TYGER RIVER

11.4MI N GREER, Greenville, SC

Built 1969 Load: 14.6 t ADT: 250

Showing 5,101-5,150 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 Editorial.

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). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.