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

US 76

Fair

Over: SANDY SPRINGS CREEK

5.2 MI SE OF PENDLETON, Anderson, SC

Built 1963 Load: 45.0 t ADT: 19,800

I-26 EB

Fair

Over: TIMOTHY CREEK

12 MI NW OF SUMMERVILLE, Berkeley, SC

Built 1960 Load: 45.0 t ADT: 52,100

SC 430

Fair

Over: ROCK CREEK

8.4 MI N OF EDGEFIELD, Edgefield, SC

Built 1940 Load: 45.0 t ADT: 550

I-20 SPUR

Fair

Over: JEFFERIES CREEK

2MI W OF FLORENCE, Florence, SC

Built 1967 Load: 45.0 t ADT: 15,500

US 278 WB

Fair

Over: S-482/GUMTREE ROAD

HILTON HEAD ISLAND, Beaufort, SC

Built 1997 Load: 45.4 t ADT: 15,000

I-85

Fair

Over: ROCKY CREEK

7.6 MI E OF GREENVILLE, Greenville, SC

Built 1962 Load: 45.4 t ADT: 130,300

SC 22 EB

Fair

Over: KINGSTON LAKE

10.5 MI NE OF CONWAY, Horry, SC

Built 2001 Load: 45.4 t ADT: 6,450

US 221

Fair

Over: TRIB TO LITTLE BUCK CR

1.0 MI S CHESNEE, Spartanburg, SC

Built 1948 Load: 45.4 t ADT: 10,200

I-26

Fair

Over: TIMOTHY CREEK

13 MI NW OF SUMMERVILLE, Berkeley, SC

Built 1960 Load: 45.7 t ADT: 52,100

SC 200

Fair

Over: READY CREEK

4.1 MI N OF WINNSBORO, Fairfield, SC

Built 1987 Load: 45.7 t ADT: 1,700

SC 22 EB

Fair

Over: CAMP SWAMP

10.2 MI NE CONWAY, Horry, SC

Built 2000 Load: 45.7 t ADT: 6,450

US 601 NB

Fair

Over: RR CSXT

TOWN OF LUGOFF, Kershaw, SC

Built 1969 Load: 45.7 t ADT: 9,800

S-30-103

Fair

Over: NORTH CREEK

5.2 MI SW CLINTON, Laurens, SC

Built 1991 Load: 45.7 t ADT: 1,950

SC 402

Fair

Over: WADBOO SWAMP

3.5MI E MONCKS CRN, Berkeley, SC

Built 2003 Load: 46.0 t ADT: 6,300

I-26 EB

Fair

Over: CYPRESS SWAMP

14.8 MI SW MONCKS CRN, Berkeley, SC

Built 1961 Load: 46.0 t ADT: 26,750

I-26 WB

Fair

Over: CYPRESS SWAMP

14.8MI SW MONCKS CRN, Berkeley, SC

Built 1961 Load: 46.0 t ADT: 26,750

SC 403

Fair

Over: LYNCHES RIVER

1.0 MI S. OF SARDIS, Florence, SC

Built 1991 Load: 46.0 t ADT: 2,100

SC 414

Fair

Over: MEADOW CREEK

8 MI NE TRAVELERS REST, Greenville, SC

Built 1975 Load: 46.0 t ADT: 2,700

SC 105

Fair

Over: THICKETTY CREEK

16 MI S OF GAFFNEY, Cherokee, SC

Built 1984 Load: 46.3 t ADT: 400

SC 642

Fair

Over: EAGLE CREEK

5MI SE SUMR'VL, Dorchester, SC

Built 1956 Load: 46.3 t ADT: 38,300

I-26 EB

Fair

Over: ABANDONED RAILROAD

10.4 MI SE OF NEWBERRY, Newberry, SC

Built 1959 Load: 46.3 t ADT: 22,000

US 76

Fair

Over: NS RR

2.2MI SE OF CLEMSON, Pickens, SC

Built 1960 Load: 46.3 t ADT: 20,600

I-20 WB

Fair

Over: SOUTH EDISTO RIVER

10 MI NE OF AIKEN, Aiken, SC

Built 1970 Load: 46.7 t ADT: 18,100

SC 700/MAYBANK HWY

Fair

Over: STONO RIVER & PENNYS CRK

5 MI SW OF CHARLESTON, Charleston, SC

Built 2004 Load: 46.7 t ADT: 35,500

US 221

Fair

Over: HORSE CREEK

0.5 MI S OF NC LN, Cherokee, SC

Built 1939 Load: 46.7 t ADT: 6,200

C-23-3176

Fair

Over: TRIB. BRUSHY CREEK

1 MI S OF GENVILLE, Greenville, SC

Built 1997 Load: 46.7 t ADT: 150

SC 22 WB

Fair

Over: JONES BIG SWAMP #3

5.2MI N BRIARCLIFF ACRES, Horry, SC

Built 2000 Load: 46.7 t ADT: 10,200

SC 9

Fair

Over: HANNAHS CREEK

CITY LIMITS-LANCASTER, Lancaster, SC

Built 1940 Load: 46.7 t ADT: 10,900

S-42-908

Fair

Over: CSXT RR

4.0 MI E. GREER, Spartanburg, SC

Built 1967 Load: 46.7 t ADT: 5,000

SC 105

Fair

Over: SOUTHERN RAILROAD

CITY OF GAFFNEY, Cherokee, SC

Built 1973 Load: 47.0 t ADT: 6,800

SC 225

Fair

Over: C S X RAILROAD

1.8 MI SW OF GREENWOOD, Greenwood, SC

Built 1973 Load: 47.0 t ADT: 11,900

I-20

Fair

Over: GILLIES DITCH

5 MI W OF CAMDEN, Kershaw, SC

Built 1969 Load: 47.0 t ADT: 42,200

S-33-7

Fair

Over: MILL CREEK

8.0 MI NW MCCORMICK, McCormick, SC

Built 1988 Load: 47.0 t ADT: 650

US 76 WBL

Fair

Over: SIX & TWENTY

5.6 NW OF ANDERSON, Anderson, SC

Built 1961 Load: 47.3 t ADT: 14,700

SC 171/FOLLY RD

Fair

Over: JAMES ISLAND CREEK

4 MI SW OF JAMES ISLAND, Charleston, SC

Built 2009 Load: 47.3 t ADT: 48,400

SC 261

Fair

Over: S.C.L. RAILROAD

3MI E OF MANNING, Clarendon, SC

Built 1969 Load: 47.3 t ADT: 1,950

US 25

Fair

Over: ACADEMY CREEK

TOWN OF EDGEFIELD, Edgefield, SC

Built 1925 Load: 47.3 t ADT: 3,100

S-19-35

Fair

Over: BEAVERDAM CREEK

4.6MI NW EDGEFIELD, Edgefield, SC

Built 1971 Load: 47.3 t ADT: 800

SC 707

Fair

Over: UNNAMED SWAMP

3.0MI N OF SURFSIDE, Horry, SC

Built 1999 Load: 47.3 t ADT: 27,500

S-27-75

Fair

Over: BAY SWAMP

9 MI NW RIDGELAND, Jasper, SC

Built 1996 Load: 47.3 t ADT: 225

S-30-6

Fair

Over: RABON CREEK

8.0 MI SW LAURENS, Laurens, SC

Built 1924 Load: 47.3 t ADT: 450

US 76 EBL

Fair

Over: SIX & TWENTY CREEK

5.6 NW OF ANDERSON, Anderson, SC

Built 1961 Load: 47.6 t ADT: 14,700

SC 329

Fair

Over: SOUTHERN RAILWAY

4.3 MI. NE GAFFNEY, Cherokee, SC

Built 1980 Load: 47.6 t ADT: 4,200

I-95 NB

Fair

Over: CATFISH CANAL

4.0MI W OF LATTA, Dillon, SC

Built 1965 Load: 47.6 t ADT: 21,850

I-95 SB

Fair

Over: CATFISH CANAL

4.0MI W OF LATTA, Dillon, SC

Built 1965 Load: 47.6 t ADT: 21,850

US 278 EB

Fair

Over: NEW RIVER

4 MI NE OF HARDEEVILLE, Jasper, SC

Built 1996 Load: 47.6 t ADT: 15,750

US 278 WB

Fair

Over: NEW RIVER

4 MI NE OF HARDEEVILLE, Jasper, SC

Built 1996 Load: 47.6 t ADT: 15,750

SC 277

Fair

Over: SMITH BRANCH

2 MI N OF COLUMBIA, Richland, SC

Built 1970 Load: 47.6 t ADT: 39,600

I-26

Fair

Over: JAMES CREEK

3.9 MI SE INMAN, Spartanburg, SC

Built 1960 Load: 47.6 t ADT: 42,900

SC 120

Fair

Over: SECOND MILL POND

TOWN OF SUMTER, Sumter, SC

Built 1964 Load: 47.6 t ADT: 24,200

Showing 3,051-3,100 of 5,396 bridges

Related

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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.