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

S-23-63

Fair

Over: SALUDA RIVER

4.8MI W GREENVILLE, Greenville, SC

Built 1980 Load: 34.0 t ADT: 6,800

US 17 ALT

Fair

Over: COMBAHEE SWAMP #2

1.5 MI NE YEMASSEE, Hampton, SC

Built 1940 Load: 34.0 t ADT: 1,700

US 701

Fair

Over: POPLAR SWAMP

6.5MI NW OF CONWAY, Horry, SC

Built 1931 Load: 34.0 t ADT: 12,900

S-29-71

Fair

Over: BEAR CREEK

6.5MI SE LANCASTER, Lancaster, SC

Built 1925 Load: 34.0 t ADT: 550

SC 66

Fair

Over: BUSH RIVER

12.5 MI SE OF LAURENS, Laurens, SC

Built 1964 Load: 34.0 t ADT: 1,250

S-30-60

Fair

Over: LITTLE RIVER

LAURENS CITY LIMITS, Laurens, SC

Built 1973 Load: 34.0 t ADT: 2,900

SC 6

Fair

Over: RR NS ABANDONED

5MI SW OF S CONGAREE, Lexington, SC

Built 1959 Load: 34.0 t ADT: 8,100

S-37-65

Fair

Over: MARTIN CREEK

5 MI SE SENECA, Oconee, SC

Built 1961 Load: 34.0 t ADT: 2,900

US 176

Fair

Over: BRINE CREEK

3MI SE OF HOLLY HILL, Orangeburg, SC

Built 1938 Load: 34.0 t ADT: 4,300

US 278

Fair

Over: DUCK CREEK

3.5 MI SE ALLENDALE, Allendale, SC

Built 1922 Load: 34.3 t ADT: 5,000

US 29

Fair

Over: ROCKY RIVER

1.5MI SE OF ANDERSON, Anderson, SC

Built 1936 Load: 34.3 t ADT: 22,200

C-4-819

Fair

Over: LTL GENEROSTEE CR

10.6 MI SW OF ANDERSON, Anderson, SC

Built 1960 Load: 34.3 t ADT: 125

C-4-581

Fair

Over: ROCK CR

8.5 MI NE OF ANDERSON, Anderson, SC

Built 1963 Load: 34.3 t ADT: 125

C-4-154

Fair

Over: EAST PRONG CREEK

13.8 MI SW OF ANDERSON, Anderson, SC

Built 1965 Load: 34.3 t ADT: 125

S-5-49

Fair

Over: OVER SCL RR

4MI NE BAMBERG, Bamberg, SC

Built 1967 Load: 34.3 t ADT: 950

S-9-22

Fair

Over: BURKE CREEK

6 MI SW ST MATHEWS, Calhoun, SC

Built 1935 Load: 34.3 t ADT: 1,450

S-9-22

Fair

Over: CAW CAW CREEK

10 MI W ST MATHEWS, Calhoun, SC

Built 1935 Load: 34.3 t ADT: 3,200

L-10-3976

Fair

Over: RED TOP CANAL

3 MI NE OF HOLLYWOOD, Charleston, SC

Built 1999 Load: 34.3 t ADT: 225

L-2847/HRBRWATCHWY

Fair

Over: TIDAL MARSH

HARBOUR WATCH WAY, Charleston, SC

Built 1990 Load: 34.3 t ADT: 600

S-28-42

Fair

Over: JUMPING GULLY_CREEK

7 MI NW OF BETHUNE, Kershaw, SC

Built 1991 Load: 34.3 t ADT: 1,500

SC 72 OLD LOCATION

Fair

Over: CSX RAIL ROAD

9.5 MI SE OF LAURENS, Laurens, SC

Built 1940 Load: 34.3 t ADT: 125

SC 219

Fair

Over: CANNONS CREEK

3.2 MI NE OF NEWBERRY, Newberry, SC

Built 1961 Load: 34.3 t ADT: 8,600

SC 97

Fair

Over: LOVE BRANCH

5.0 MI S HICKORY GROVE, York, SC

Built 1974 Load: 34.3 t ADT: 375

S-4-1021

Fair

Over: HUNTINGTON CREEK

CITY OF ANDERSON, Anderson, SC

Built 1950 Load: 34.7 t ADT: 100

I-26

Fair

Over: SAW MILL BRANCH

13.3 MI SW MONCKS CRN, Berkeley, SC

Built 1960 Load: 34.7 t ADT: 90,400

RAMP OFF I-526 EB

Fair

Over: VEGETATIVE RIGHT OF WA

IN N. CHARLESTON, Charleston, SC

Built 1992 Load: 34.7 t ADT: 13,200

SC 217/LODGE HWY

Fair

Over: BUCKHEAD CREEK

0.5MI W SMOAKS, Colleton, SC

Built 1941 Load: 34.7 t ADT: 900

I-77 NBL

Fair

Over: BIG WATEREE CK

1.4 MI S OF SC 200, Fairfield, SC

Built 1979 Load: 34.7 t ADT: 23,650

I-77 SBL

Fair

Over: BIG WATEREE CK

1.4 MI S OF SC 200, Fairfield, SC

Built 1979 Load: 34.7 t ADT: 23,650

US 1

Fair

Over: RR CSXT

TOWN OF ELGIN, Kershaw, SC

Built 1948 Load: 34.7 t ADT: 13,100

S-29-72

Fair

Over: TRIB LITTLE LYNCHES RV

2MI NE LANCASTER, Lancaster, SC

Built 1924 Load: 34.7 t ADT: 425

I-77 NB

Fair

Over: CONGAREE RIVER

5 MI S COLUMBIA, Lexington, SC

Built 1985 Load: 34.7 t ADT: 46,600

I-126/US 76/US 321

Fair

Over: WAYNE ST & VISTA GREENWY

CITY OF COLA, Richland, SC

Built 1961 Load: 34.7 t ADT: 49,300

SC 277 NB

Fair

Over: RR CSXT

3 MI NE OF COLUMBIA, Richland, SC

Built 1974 Load: 34.7 t ADT: 20,150

SC 261

Fair

Over: BEECH CREEK

12 MI W OF SUMTER, Sumter, SC

Built 1948 Load: 34.7 t ADT: 3,500

SC 460

Fair

Over: RR NS

3.0 MI N FORT MILL, York, SC

Built 1975 Load: 34.7 t ADT: 17,600

C-4-3072

Fair

Over: HARTWELL RESERVOIR

10.8 MI NW OF ANDERSON, Anderson, SC

Built 1968 Load: 35.0 t ADT: 750

SC 70

Fair

Over: HAYES MILL CREEK

3.5 MI E OF DENMARK, Bamberg, SC

Built 1996 Load: 35.0 t ADT: 3,100

SC 5

Fair

Over: SOUTHERN RR

1 MI E BLACKSBURG, Cherokee, SC

Built 2003 Load: 35.0 t ADT: 9,600

I-95

Fair

Over: POLK SWAMP

2 MI W OF ST GEORGE, Dorchester, SC

Built 1974 Load: 35.0 t ADT: 50,800

SC 34

Fair

Over: BLUE CREEK

1.5 MI E OF RIDGEWAY, Fairfield, SC

Built 1947 Load: 35.0 t ADT: 2,200

S-24-284

Fair

Over: JOHN'S CREEK

5.2MI NW GREENWOOD, Greenwood, SC

Built 1973 Load: 35.0 t ADT: 350

S-26-99

Fair

Over: LAKE SWAMP

3 MI N GALIVANTS FERRY, Horry, SC

Built 1994 Load: 35.0 t ADT: 500

S-29-154

Fair

Over: LYNCHES CREEK

2.6 MI N KERSHAW, Lancaster, SC

Built 1987 Load: 35.0 t ADT: 500

I-77 SB

Fair

Over: CONGAREE RIVER

5 MI S COLUMBIA, Lexington, SC

Built 1985 Load: 35.0 t ADT: 46,600

S-42-1017

Fair

Over: NS RR

HOLLYWOOD DR/SPTBG, Spartanburg, SC

Built 1960 Load: 35.0 t ADT: 1,850

SC 5

Fair

Over: FISHING CREEK

4.0 MI E OF YORK, York, SC

Built 1968 Load: 35.0 t ADT: 9,900

RAMP ON I-526 EB

Fair

Over: MARSH

5.5 MI NE CHARLESTON, Berkeley, SC

Built 1989 Load: 35.3 t ADT: 7,400

L-635/HYDE PARK RD

Fair

Over: DRAYTON SWAMP

5.0 MI NW RAVENEL, Charleston, SC

Built 1996 Load: 35.3 t ADT: 225

I-95 NB

Fair

Over: COMBAHEE RIVER

HAMP/COL CO LN, Colleton, SC

Built 1970 Load: 35.3 t ADT: 26,050

Showing 2,651-2,700 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.