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-12-141

Good

Over: ROCKY CREEK

TOWN OF GREAT FALLS, Chester, SC

Built 2016 Load: 27.2 t ADT: 550

S-12-72

Good

Over: LITTLE ROCKY CREEK

7MI SE CHESTER, Chester, SC

Built 1996 Load: 27.2 t ADT: 275

S-12-408

Good

Over: TAN YARD BRANCH

CRESTWOOD CTR IN CHESTER, Chester, SC

Built 1996 Load: 27.2 t ADT: 200

S-13-63

Good

Over: BRANCH OF BEAR CREEK

8.5 MI S CHESTERFIELD, Chesterfield, SC

Built 1983 Load: 27.2 t ADT: 150

S-13-445

Good

Over: CLAY CREEK

5.7 NE PAGELAND, Chesterfield, SC

Built 1992 Load: 27.2 t ADT: 275

S-15-114

Good

Over: TRIB TO BLACK CREEK

7.5 MI SW WALT'B, Colleton, SC

Built 1965 Load: 27.2 t ADT: 325

S-15-89

Good

Over: TRIB TO JONES SWAMP

5.8 MI NW WALT'B, Colleton, SC

Built 1967 Load: 27.2 t ADT: 75

SC 340

Good

Over: LAKE SWAMP

6.0 MI E OF LAMAR, Darlington, SC

Built 1947 Load: 27.2 t ADT: 2,000

S-18-83

Good

Over: POLK SWAMP

3.1 MI SE ST GEORGE, Dorchester, SC

Built 1965 Load: 27.2 t ADT: 550

S-22-545

Good

Over: BOND SWAMP

4MI S ANDREWS, Georgetown, SC

Built 2010 Load: 27.2 t ADT: 125

C-39-7104

Good

Over: SALUDA RIVER

9.3 MI NW TRAVELERS REST, Greenville, SC

Built 1993 Load: 27.2 t ADT: 325

C-23-2145

Good

Over: TRIB TO CLEAR CREEK

3.2 MI NW OF GREER, Greenville, SC

Built 2012 Load: 27.2 t ADT: 150

S-25-50

Good

Over: COOSAWHATCHIE RIVER

2MI SW HAMPTON, Hampton, SC

Built 1976 Load: 27.2 t ADT: 1,100

S-34/PURRYSBURG RD

Good

Over: MILL STONE CREEK

10.2MI SW RIDGELAND, Jasper, SC

Built 1965 Load: 27.2 t ADT: 175

S-27-87

Good

Over: COOSAWHATCHIE RIVER

14.8MI N RIDGELAND, Jasper, SC

Built 1975 Load: 27.2 t ADT: 600

C-34-260

Good

Over: TOBYS CREEK

0.5 MI W PEE DEE, Marion, SC

Built 1989 Load: 27.2 t ADT: 200

S-38-63

Good

Over: EDISTO RIVER SWAMP

3.5 MI W BRANCHVILLE, Orangeburg, SC

Built 2003 Load: 27.2 t ADT: 400

C-39-714

Good

Over: RICES CREEK

4.5MI SE OF PICKENS, Pickens, SC

Built 2004 Load: 27.2 t ADT: 200

S-41-145

Good

Over: TRIB TO SALUDA RIVER

11.0 MI NE OF SALUDA, Saluda, SC

Built 1989 Load: 27.2 t ADT: 50

C-42-984

Good

Over: TRIB TO PACOLET RIVER

5.8 MI SW OF CHESNEE, Spartanburg, SC

Built 2003 Load: 27.2 t ADT: 225

C-42-4782

Good

Over: LTL CHINQUEPIN CK

1.8MI NW SPARTANBURG, Spartanburg, SC

Built 1940 Load: 27.2 t ADT: 225

S-46-728

Good

Over: WILDCAT CREEK

CITY OF ROCK HILL, York, SC

Built 2002 Load: 27.2 t ADT: 11,500

US 17 ALT

Good

Over: SAWMILL CREEK

13MI SW MONCKS CRN, Berkeley, SC

Built 1936 Load: 27.5 t ADT: 41,900

L-3826/INGLESDBLVD

Good

Over: UNNAMED STREAM

NORTH CHARLESTON, Charleston, SC

Built 2015 Load: 27.5 t ADT: 600

S-15-397

Good

Over: BLACK CREEK

8.5 MI W WALT'B, Colleton, SC

Built 1966 Load: 27.5 t ADT: 175

S-15-397

Good

Over: UNNAMED STREAM -NO. 2

8.5 MI W WALT'B, Colleton, SC

Built 1966 Load: 27.5 t ADT: 175

S-15-429/CANNON RD

Good

Over: BAM BOO CREEK

12 MI NE WALTERBORO, Colleton, SC

Built 1966 Load: 27.5 t ADT: 450

S-15-712

Good

Over: UNNAMED STREAM

10.8 MI N WALT'B, Colleton, SC

Built 1979 Load: 27.5 t ADT: 75

S-721/CONNLEY RD

Good

Over: UNNAMED STREAM

18.5 MI NW WALTERBORO, Colleton, SC

Built 1981 Load: 27.5 t ADT: 125

S-26-24

Good

Over: PALMETTO SWAMP BOX CULVE

7 MI S AYNOR, Horry, SC

Built 1948 Load: 27.5 t ADT: 1,800

SC 97

Good

Over: ROCKY BRANCH

7 MI NW OF CAMDEN, Kershaw, SC

Built 2022 Load: 27.5 t ADT: 2,500

S-29-15

Good

Over: HANGING ROCK CREEK

1MI S HEATH SPRINGS, Lancaster, SC

Built 2015 Load: 27.5 t ADT: 2,100

S-30-36

Good

Over: RABON CREEK

7.2 MI SW LAURENS, Laurens, SC

Built 2006 Load: 27.5 t ADT: 700

S-32-1426

Good

Over: HORSEPEN CREEK

3 MI S OF BATESBURG, Lexington, SC

Built 1975 Load: 27.5 t ADT: 150

S-41-65

Good

Over: RED BANK CREEK

4.4 MI NW OF SALUDA, Saluda, SC

Built 1993 Load: 27.5 t ADT: 200

L-7979/NRTHWDSBLVD

Good

Over: TRIB TO GOOSE CREEK RES

NORTH CHARLESTON, Charleston, SC

Built 1986 Load: 27.9 t ADT: 600

S-11-307

Good

Over: IRENE CREEK

3.1MI SW GAFFNEY, Cherokee, SC

Built 2006 Load: 27.9 t ADT: 2,500

S-15-102

Good

Over: SOIL CONSERVATION CANAL

15.5 MI NW WALT'B, Colleton, SC

Built 1971 Load: 27.9 t ADT: 200

SC 102

Good

Over: BOGGY SWAMP

4MI N OF HARTSVILLE, Darlington, SC

Built 1947 Load: 27.9 t ADT: 3,100

SC 61/ASHLEYRIVRRD

Good

Over: TRIB OF ASHLEY RIVER

6 MI SW OF LADSON, Dorchester, SC

Built 1925 Load: 27.9 t ADT: 11,600

SC 23

Good

Over: BEAVERDAM CREEK

TOWN OF EDGEFIELD, Edgefield, SC

Built 1925 Load: 27.9 t ADT: 1,350

US 378

Good

Over: LITTLE STEVENS CREEK

11.0 MI NE OF EDGEFIELD, Edgefield, SC

Built 1959 Load: 27.9 t ADT: 1,000

US 276 WBL

Good

Over: RAMP 5180/5181

5.7 MI N GREENVILLE, Greenville, SC

Built 1957 Load: 27.9 t ADT: 14,450

C-23-310

Good

Over: CSXT RR

IN GREENVILLE OFF SC 291, Greenville, SC

Built 1998 Load: 27.9 t ADT: 3,700

I-185 NBL

Good

Over: HUFF CREEK

SOUTH OF GREENVILLE, Greenville, SC

Built 2000 Load: 27.9 t ADT: 3,950

I-185 SBL

Good

Over: HUFF CREEK

SOUTH OF GREENVILLE, Greenville, SC

Built 2000 Load: 27.9 t ADT: 3,950

C-23-5196

Good

Over: TRIB TO ROCKY CREEK

CITY OF GREENVILLE, Greenville, SC

Built 1990 Load: 27.9 t ADT: 150

S-24-29

Good

Over: BRIGHTMAN CREEK

4.1MI SE GREENWOOD, Greenwood, SC

Built 1948 Load: 27.9 t ADT: 3,400

SC 905

Good

Over: TODD SWAMP

10.5MI S OF LORIS, Horry, SC

Built 1942 Load: 27.9 t ADT: 6,600

SC 35

Good

Over: RR CSXT

3 MI SW OF COLUMBIA, Lexington, SC

Built 2003 Load: 27.9 t ADT: 11,400

Showing 3,551-3,600 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.