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-15-46/RED OAK RD

Good

Over: HORSE PEN BRANCH

5.8 MI N COTTAGEVILLE, Colleton, SC

Built 2014 Load: 41.1 t ADT: 550

S-21-554

Good

Over: GUM BRANCH

4M SE EVERGREEN, Florence, SC

Built 1996 Load: 41.1 t ADT: 400

S-21-610

Good

Over: BOGGY BRANCH

3 MI NE CLAUSSEN, Florence, SC

Built 1997 Load: 41.1 t ADT: 750

S-21-721

Good

Over: GREY SWAMP #1

3 MI N COWARD, Florence, SC

Built 1997 Load: 41.1 t ADT: 125

S-26-136

Good

Over: JOHNSON BRANCH

5 MI S CONWAY, Horry, SC

Built 1997 Load: 41.1 t ADT: 450

S-28-58

Good

Over: GRANNYS QUARTERS CREEK

11 MI N CAMDEN, Kershaw, SC

Built 2004 Load: 41.1 t ADT: 1,100

S-28-45

Good

Over: BOLTON BRANCH CREEK

1 MI SW OF CAMDEN, Kershaw, SC

Built 2019 Load: 41.1 t ADT: 4,100

US 178

Good

Over: BLACK CREEK

5MI W OF PELION, Lexington, SC

Built 2004 Load: 41.1 t ADT: 2,900

S-38-134

Good

Over: COOPER SWAMP CREEK

8MI SW ORANGEBURG, Orangeburg, SC

Built 1947 Load: 41.1 t ADT: 175

US 301 SB

Good

Over: FOUR HOLE SWAMP

8 MI W OF SANTEE, Orangeburg, SC

Built 2023 Load: 41.1 t ADT: 4,750

S-39-81

Good

Over: WOLF CREEK

4.0 MI E PICKENS, Pickens, SC

Built 1998 Load: 41.1 t ADT: 225

SC 768 EB

Good

Over: GILLS CREEK

5 MI S OF COLUMBIA, Richland, SC

Built 1981 Load: 41.1 t ADT: 7,950

RAMP ON I-77 NB

Good

Over: WILDCAT CREEK

4 MI E OF COLUMBIA, Richland, SC

Built 1991 Load: 41.1 t ADT: 6,500

S-42-101

Good

Over: CSX RR

0.7 MI N CHESNEE, Spartanburg, SC

Built 2001 Load: 41.1 t ADT: 1,750

SC 85 SB

Good

Over: LAWSON FORK CREEK

3.2 MI N SPARTANBURG, Spartanburg, SC

Built 1993 Load: 41.1 t ADT: 11,200

S-44-66

Good

Over: CUNNINGHAM CREEK

4.2 MI NW JONESVILLE, Union, SC

Built 2009 Load: 41.1 t ADT: 150

S-46-57

Good

Over: BURGIS CREEK

4.6 MI E ROCK HILL, York, SC

Built 2009 Load: 41.1 t ADT: 3,700

S-1-65

Good

Over: BR OF ROCKY CR

0.6 MI SW LOWNDESVILLE, Abbeville, SC

Built 1996 Load: 41.5 t ADT: 125

S-2-1671

Good

Over: TRIB TO HORSE CREEK

4.0 MI S N AUGUSTA, Aiken, SC

Built 1998 Load: 41.5 t ADT: 1,100

S-11-119

Good

Over: BEAR CREEK

4.5 MI S OF BLACKSBURG, Cherokee, SC

Built 1979 Load: 41.5 t ADT: 500

S-14-35

Good

Over: TRIB TO DOUGLAS SWAMP

4MI E TURBEVILLE, Clarendon, SC

Built 2015 Load: 41.5 t ADT: 125

S-14-211

Good

Over: DEEP CREEK

6.0MI SE MANNING, Clarendon, SC

Built 2014 Load: 41.5 t ADT: 225

S-15-28

Good

Over: BULL CREEK

12.5 MI SW WALT'B, Colleton, SC

Built 1996 Load: 41.5 t ADT: 225

S-15-34

Good

Over: ALLEN CREEK

7 MI NE WALT'B, Colleton, SC

Built 2005 Load: 41.5 t ADT: 950

US 52 BYP WBL

Good

Over: BYERLY MILL POND

1MI NW OF DARLINGTON, Darlington, SC

Built 1972 Load: 41.5 t ADT: 4,000

SC 165

Good

Over: FISHBOURNE CREEK

FISHBOURNE CREEK (3), Dorchester, SC

Built 2009 Load: 41.5 t ADT: 7,300

US 378

Good

Over: HORSEPEN CREEX

10.1 MI N OF EDGEFILED, Edgefield, SC

Built 1959 Load: 41.5 t ADT: 1,000

S-20-41

Good

Over: LITTLE WATEREE CREEK

5MI NE WINNSBORO, Fairfield, SC

Built 2002 Load: 41.5 t ADT: 550

I-77

Good

Over: DUTCHMANS CREEK

1.0 MI N OF SC 34, Fairfield, SC

Built 1978 Load: 41.5 t ADT: 47,500

S-21-773

Good

Over: CYPRESS CREEK

TOWN OF OLANTA, Florence, SC

Built 1997 Load: 41.5 t ADT: 125

C-23-545

Good

Over: PETERS CREEK

5.4 MI NE SIMPSONVILLE, Greenville, SC

Built 2010 Load: 41.5 t ADT: 4,800

S-24-228

Good

Over: BIG ROCK CREEK

1.2MI NW NINETY SIX, Greenwood, SC

Built 2008 Load: 41.5 t ADT: 1,000

SC 9 SBL

Good

Over: MITCHELL SWAMP

1.0 MI SE OF GREEN SEA, Horry, SC

Built 1981 Load: 41.5 t ADT: 4,300

L-678/WHSPRNGHLSRD

Good

Over: PLAY CARDS SWAMP

7 MI W OF LORIS, Horry, SC

Built 2020 Load: 41.5 t ADT: 250

US 1

Good

Over: RR CSXT

1 MI W OF CAMDEN, Kershaw, SC

Built 2004 Load: 41.5 t ADT: 24,500

S-32-127

Good

Over: FOURTEEN MILE CREEK

TOWN OF LEXINGTON, Lexington, SC

Built 1991 Load: 41.5 t ADT: 4,400

S-37-129

Good

Over: W FORK LITTLE RIVER

8 MI NE WALHALLA, Oconee, SC

Built 1996 Load: 41.5 t ADT: 600

S-38-105

Good

Over: SPILLWAY - BROWNING

3MI E ELLOREE, Orangeburg, SC

Built 2013 Load: 41.5 t ADT: 800

C-39-563

Good

Over: RICES CREEK

3.8MI S OF PICKENS, Pickens, SC

Built 2013 Load: 41.5 t ADT: 126

S-40-1682

Good

Over: LITTLE CEDAR CREEK

12MI NW COLA, Richland, SC

Built 2017 Load: 41.5 t ADT: 750

C-42-1794

Good

Over: LAWSON FORK CRK

3.5 MI N OF SPARTANBURG, Spartanburg, SC

Built 1991 Load: 41.5 t ADT: 225

SC 5

Good

Over: ROCKY CREEK

6.8 MI W OF YORK, York, SC

Built 2009 Load: 41.5 t ADT: 6,300

S-46-63

Good

Over: BULLOCKS CREEK

3.4 MI E HICKORY GROVE, York, SC

Built 2010 Load: 41.5 t ADT: 500

SC 63/SNIDERS HWY

Good

Over: DEEP CREEK

13.5 MI W OF WALTBR, Colleton, SC

Built 2000 Load: 41.8 t ADT: 2,800

S-174/CARTER RD

Good

Over: CAPTAINS CREEK

2.2 MI SW RIDGEVILLE, Dorchester, SC

Built 2005 Load: 41.8 t ADT: 375

S-18-263/ASHLEY DR

Good

Over: SAWMILL BRANCH

SUMMERVILLE, Dorchester, SC

Built 2005 Load: 41.8 t ADT: 250

S-19-34

Good

Over: DOUBLE BRANCH

7.3 MI SW EDGEFIELD, Edgefield, SC

Built 1989 Load: 41.8 t ADT: 1,600

S-21-105

Good

Over: BUCK BRANCH

1MI N HYMAN, Florence, SC

Built 2006 Load: 41.8 t ADT: 900

US 76 WB

Good

Over: GREAT PEE DEE RV SWP

11.5MI E OF FLORENCE, Florence, SC

Built 1991 Load: 41.8 t ADT: 10,800

S-21-560

Good

Over: LYNCHES LAKE

3MI W JOHNSONVILLE, Florence, SC

Built 1997 Load: 41.8 t ADT: 275

Showing 4,451-4,500 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.