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%.

Condition Distribution

Bridge inventory deck-condition mix — South Carolina (FHWA NBI)

South Carolina34.766493699036324%49.03632320237213%GoodFairPoorStructurally Deficient
Bridge inventory deck-condition mix — South Carolina (FHWA NBI)

Counties (46)

Abbeville 96 Aiken 103 Allendale 43 Anderson 267 Bamberg 48 Barnwell 45 Beaufort 45 Berkeley 136 Calhoun 34 Charleston 196 Cherokee 113 Chester 95 Chesterfield 126 Clarendon 85 Colleton 139 Darlington 95 Dillon 62 Dorchester 112 Edgefield 82 Fairfield 81 Florence 161 Georgetown 71 Greenville 373 Greenwood 75 Hampton 60 Horry 259 Jasper 73 Kershaw 94 Lancaster 110 Laurens 146 Lee 50 Lexington 135 Marion 61 Marlboro 52 McCormick 32 Newberry 111 Oconee 119 Orangeburg 160 Pickens 156 Richland 211 Saluda 66 Spartanburg 361 Sumter 100 Union 82 Williamsburg 108 York 167

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.

C-20-60

Poor

Over: BR OF MORRIS CR

8.4 MI SW OF WINNSBORO, Fairfield, SC

Built 1960 Load: 0.3 t ADT: 125

S-12-353

Poor

Over: BEAVER DAM CREEK

3MI NW GREAT FALLS, Chester, SC

Built 1974 Load: 0.6 t ADT: 200

C-30-548

Poor

Over: NORTH RABON CREEK

11.5MI NW OF LAURENS, Laurens, SC

Built 1989 Load: 0.6 t ADT: 200

S-34-64

Poor

Over: PITCH POT SWAMP

4MI W MARION, Marion, SC

Built 1967 Load: 1.0 t ADT: 200

S-39-250

Poor

Over: MACHINE CREEK

8.0 MI N EASLEY, Pickens, SC

Built 1963 Load: 1.0 t ADT: 2,400

C-11-288

Poor

Over: BR BROAD RIVER

3.8 MI SW BLACKBURG, Cherokee, SC

Built 1992 Load: 1.3 t ADT: 200

All Bridges in South Carolina

SC 917

Poor

Over: LONG BRANCH SWP (NO. 2)

8.5MI NW OF LORIS, Horry, SC

Built 1948 Load: 29.5 t ADT: 2,100

C-42-4440

Poor

Over: TRIB DUTCHMAN CR

9.8 MI NE WOODRUFF, Spartanburg, SC

Built 1983 Load: 29.5 t ADT: 225

CANE GULLY BRANCH-

Poor

Over: BRANCH

NO DATA ENTERED, Berkeley, SC

Built 1978 Load: 30.1 t ADT: 50

SC 703

Poor

Over: SHEM CREEK

IN MT PLEASANT, Charleston, SC

Built 1947 Load: 30.1 t ADT: 35,700

SC 12

Poor

Over: CONGAREE RIVER

1MI W OF COLUMBIA, Lexington, SC

Built 1976 Load: 30.1 t ADT: 25,200

SC 11

Poor

Over: N. FORK LITTLE RIVER

10.5 MI NE WALHALLA, Oconee, SC

Built 1969 Load: 30.5 t ADT: 4,000

US 21

Poor

Over: BUCKHEAD CREEK (2)

0.5MI N RUFFIN, Colleton, SC

Built 1955 Load: 30.8 t ADT: 1,200

S-22-266

Poor

Over: S. CROSSWAY #2

PAWLEYS ISLAND, Georgetown, SC

Built 2002 Load: 30.8 t ADT: 2,200

SC 215

Poor

Over: CRANE CREEK

5 MI N OF COLUMBIA, Richland, SC

Built 1922 Load: 30.8 t ADT: 7,600

SC 274

Poor

Over: BIG ALLISON CREEK

4.1 MI N OF NEWPORT, York, SC

Built 1975 Load: 30.8 t ADT: 6,900

SC 11

Poor

Over: S PACOLET RIVER

4.5 MI SE LANDRUM, Spartanburg, SC

Built 1964 Load: 31.1 t ADT: 5,900

S-8-35

Poor

Over: REDIVERSION CANAL

14.8 MI NE MONCKS CORNER, Berkeley, SC

Built 1982 Load: 31.4 t ADT: 1,550

US 278

Poor

Over: HORSE CREEK

5 MI SE OF AUGUSTA, Aiken, SC

Built 1951 Load: 31.8 t ADT: 7,800

US 278 EB

Poor

Over: MACKAY CREEK

@ HILTON HEAD ISLAND, Beaufort, SC

Built 1956 Load: 32.1 t ADT: 28,700

S-9-24

Poor

Over: BATES MILL CREEK

4 MI N ST MATHEWS, Calhoun, SC

Built 1930 Load: 32.1 t ADT: 750

LIQUOR STILL RD.

Poor

Over: COLONEL'S CREEK

RANGE 28C & 28B, Richland, SC

Built 1984 Load: 32.1 t ADT: 25

US 501

Poor

Over: CHINNERS SWAMP

10.0MI W OF CONWAY, Horry, SC

Built 1948 Load: 32.7 t ADT: 25,700

US 29 NB

Poor

Over: NORTH TYGER RIVER

6.0 MI W OF SPARTANBURG, Spartanburg, SC

Built 1973 Load: 33.7 t ADT: 13,350

US 76

Poor

Over: ROCKY BLUFF SWAMP (2)

6 MI NE OF SUMTER, Sumter, SC

Built 1951 Load: 33.7 t ADT: 2,100

US 21

Poor

Over: ROCKY CREEK

CITY OF GREAT FALLS, Chester, SC

Built 1938 Load: 34.3 t ADT: 4,500

SC 11

Poor

Over: GVILLE WATER WORKS PIPES

14MI NE OF PICKENS, Pickens, SC

Built 1970 Load: 35.3 t ADT: 3,300

SC 56

Poor

Over: TYGER RIVER

12.0 MI SE WOODRUFF, Spartanburg, SC

Built 1930 Load: 35.6 t ADT: 1,150

SC 93

Poor

Over: NORFOLK SOUTHERN RR

TOWN OF NORRIS, Pickens, SC

Built 1954 Load: 36.9 t ADT: 5,400

US 17 NB

Poor

Over: ASHLEY RIVER

IN CHARLESTON, Charleston, SC

Built 1961 Load: 37.9 t ADT: 36,400

S-43-40

Poor

Over: CANE SAVANNAH CREEK

6 MI SW OF SUMTER, Sumter, SC

Built 1990 Load: 37.9 t ADT: 3,200

SC 9

Poor

Over: IRON SPRING SWAMP

1.0 MI SW OF GREEN SEA, Horry, SC

Built 1981 Load: 38.9 t ADT: 8,600

US 15

Poor

Over: LITTLE SEED TICK CREEK

6.0 MI NE HARTSVILLE, Darlington, SC

Built 1931 Load: 41.1 t ADT: 2,900

SC 150

Poor

Over: FAIRFOREST CREEK

5.0MI SW OF PACOLET, Spartanburg, SC

Built 1983 Load: 41.1 t ADT: 1,200

SC 72

Poor

Over: TYGER RIVER

6.9 MI W OF CARLISLE, Union, SC

Built 1958 Load: 42.8 t ADT: 2,700

I-26 WB

Poor

Over: INDIAN CREEK

9.1 MI NW OF NEWBERRY, Newberry, SC

Built 1960 Load: 48.0 t ADT: 22,150

US 76 WBL

Poor

Over: EIGHTEEN MILE CREEK

1.1 MI W OF PENDLETON, Anderson, SC

Built 1961 Load: 48.3 t ADT: 8,450

S-23-316

Poor

Over: HUFF CREEK

5.2MI SW MAULDIN, Greenville, SC

Built 1912 Load: 49.9 t ADT: 2,000

I-85

Poor

Over: TRIB LAUREL CRK

4.9 MI E OF GREENVILLE, Greenville, SC

Built 1960 Load: 97.2 t ADT: 124,000

C-1-406

Structurally Deficient

Over: LONG CANE CR

6.8 MI NE OF ABBEVILLE, Abbeville, SC

Built 1960 ADT: 125

C-4-535

Structurally Deficient

Over: C & NW RR

1.2 MI E. ANDERSON, Anderson, SC

Built 1955 ADT: 175

S-13-130

Structurally Deficient

Over: CLAY CREEK

2.4 MI NW MT CROGHAN, Chesterfield, SC

Built 1961 ADT: 125

S-13-531

Structurally Deficient

Over: MANGUM BRANCH

4.3 MI NW PAGELAND, Chesterfield, SC

Built 1967 ADT: 100

S-20-20

Structurally Deficient

Over: HOGFORK BRANCH

9.8MI NE WINNSBORO, Fairfield, SC

Built 1961 ADT: 100

C-28-250

Structurally Deficient

Over: LITTLE FLAT ROCK CK

13MI W OF CAMDEN, Kershaw, SC

Built 1950 ADT: 200

S-29-765

Structurally Deficient

Over: HANGING ROCK CREEK

2.3MI SW KERSHAW, Lancaster, SC

Built 1958 ADT: 200

C-37-1855

Structurally Deficient

Over: SOUTHERN RR

3.4 MI E OF SENECA, Oconee, SC

Built 1955 ADT: 200

S-37-258

Structurally Deficient

Over: CHAUGA CREEK

9 MI NW WALHALLA, Oconee, SC

Built 1957 ADT: 175

CENTURYDIVISION RD

Structurally Deficient

Over: COLONEL'S CREEK

BETWEEN RANGE 18C & 18D, Richland, SC

Built 1941 ADT: 120

S-41-164

Structurally Deficient

Over: BR OF LITTLE SALUDA RV

5.5 MI NE OF SALUDA, Saluda, SC

Built 1952 ADT: 25

C-42-1024

Structurally Deficient

Over: PACOLET RIVER

1.0 MI NW OF CAMPOBELLO, Spartanburg, SC

Built 1932 ADT: 275

S-42-108

Structurally Deficient

Over: RICHLAND CREEK

3.6 MI NW PACOLET, Spartanburg, SC

Built 1959 ADT: 600

SC 49/SC 215 CON

Structurally Deficient

Over: SOUTHERN RAILROAD

2.7 MI S OF UNION, Union, SC

Built 1930 Load: 1.3 t ADT: 1,450

S-11-56

Structurally Deficient

Over: HORSE CREEK

13.7MI NW GAFFNEY, Cherokee, SC

Built 1950 Load: 1.6 t ADT: 50

SC 105

Structurally Deficient

Over: PACOLET RIVER

CHEROKEE CO LN, Union, SC

Built 1960 Load: 1.9 t ADT: 500

S-390/TOOGOODOO RD

Structurally Deficient

Over: SWINTON CREEK

5 MI SW RAVENEL, Charleston, SC

Built 1975 Load: 2.6 t ADT: 2,200

Showing 5,301-5,350 of 5,396 bridges

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
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.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

Read our methodology — how this data is sourced, computed, and verified.