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

C-4-10405

Good

Over: TRIB TO SIX TWENTY CREEK

14.2 MI NE OF ANDERSON, Anderson, SC

Built 2012 Load: 36.9 t ADT: 50

L-6794/WEBER BLVD

Good

Over: MCCHUNE BRANCH

8 MI W OF GOOSE CREEK, Charleston, SC

Built 2015 Load: 36.9 t ADT: 600

S-12-404

Good

Over: TRIB TO FISHING CR

4MI NE RICHBURG, Chester, SC

Built 2010 Load: 36.9 t ADT: 125

S-13-149

Good

Over: LITTLE CEDAR CREEK

4.2 MI SE PATRICK, Chesterfield, SC

Built 2002 Load: 36.9 t ADT: 225

S-13-106

Good

Over: HILL CREEK

4 MI NW PAGELAND, Chesterfield, SC

Built 1994 Load: 36.9 t ADT: 275

S-18-29

Good

Over: EDISTO RIVER RELIEF

EDISTO RIVER RELIEF #4, Dorchester, SC

Built 2003 Load: 36.9 t ADT: 750

SC 253

Good

Over: REEDY RIVER

2.5 MI NW OF GREENVILLE, Greenville, SC

Built 1964 Load: 36.9 t ADT: 12,700

S-23-191

Good

Over: HOWARD BRANCH

1.8MI N FOUNTAIN INN, Greenville, SC

Built 2016 Load: 36.9 t ADT: 3,500

S-26-105

Good

Over: WACCAMAW BRANCH

5 MI NE HICKORY GROVE, Horry, SC

Built 2011 Load: 36.9 t ADT: 3,200

S-26-55

Good

Over: BUCK CREEK

7 MI E LORIS, Horry, SC

Built 1985 Load: 36.9 t ADT: 175

US 521

Good

Over: BIG PINE TREE CREEK

1MI S OF CAMDEN, Kershaw, SC

Built 2022 Load: 36.9 t ADT: 15,700

US 378

Good

Over: BEAVER DAM CREEK

7 MI W OF LEXINGTON, Lexington, SC

Built 2000 Load: 36.9 t ADT: 15,400

S-37-167

Good

Over: CLEVELAND CREEK

11.5 MI S SENECA, Oconee, SC

Built 2009 Load: 36.9 t ADT: 125

S-37-88

Good

Over: TOXAWAY CREEK

6 MI W WESTMINSTER, Oconee, SC

Built 2011 Load: 36.9 t ADT: 375

I-85 NB

Good

Over: LAWSON FORK CREEK

2.4 MI NW OF SPARTANBURG, Spartanburg, SC

Built 1993 Load: 36.9 t ADT: 41,250

S-43-78

Good

Over: PUDDING SWAMP NO. 2

10 MI SE OF MAYESVILLE, Sumter, SC

Built 1996 Load: 36.9 t ADT: 150

S-46-23

Good

Over: BR OF BULLOCKS CR

6.7 MI W YORK, York, SC

Built 2006 Load: 36.9 t ADT: 325

S-46-73

Good

Over: BULLOCKS CREEK

4.3 MI SW HICKORY GROVE, York, SC

Built 2000 Load: 36.9 t ADT: 600

S-1-184

Good

Over: MILLER BRANCH

3.5MI SE DUE WEST, Abbeville, SC

Built 2002 Load: 37.3 t ADT: 125

S-2-29

Good

Over: JOYCE BRANCH

2.5 MI NE OF SC 118, Aiken, SC

Built 1991 Load: 37.3 t ADT: 1,050

C-4-3694

Good

Over: HEN COOP CR

8.7 MI SE OF ANDERSON, Anderson, SC

Built 1990 Load: 37.3 t ADT: 125

US 17/SAVANNAH HWY

Good

Over: RANTOWLES CREEK

6 MI NE OF RAVENEL, Charleston, SC

Built 2007 Load: 37.3 t ADT: 32,900

SC 174/HIGHWAY 174

Good

Over: STORE CREEK

4 MI N OF EDISTO BEACH, Charleston, SC

Built 2018 Load: 37.3 t ADT: 4,900

I-85

Good

Over: BUFFALO CREEK

7.5 MI NE OF GAFFNEY, Cherokee, SC

Built 2003 Load: 37.3 t ADT: 55,200

S-12-144

Good

Over: LITTLE ROCKY CREEK

7.8MI SE CHESTER, Chester, SC

Built 2009 Load: 37.3 t ADT: 150

S-15-88/SEE SEE RD

Good

Over: ASHEPOO RIVER

5 MI SW WALTERBORO, Colleton, SC

Built 1988 Load: 37.3 t ADT: 125

US 301

Good

Over: LITTLE PEE DEE RIVER

3.0MI N OF DILLON, Dillon, SC

Built 2019 Load: 37.3 t ADT: 9,100

S-17-30

Good

Over: BEAR SWAMP

2MI E DILLON, Dillon, SC

Built 1948 Load: 37.3 t ADT: 650

SC 41

Good

Over: BUCK SWAMP

1.5 MI S FORK, Dillon, SC

Built 1995 Load: 37.3 t ADT: 2,300

S-21-58

Good

Over: BR OF LYNCHES LAKE

8.5 MI W JOHNSONVILLE, Florence, SC

Built 1987 Load: 37.3 t ADT: 750

SC 327

Good

Over: WILLOW CREEK

2 MI E EVERGREEN, Florence, SC

Built 1996 Load: 37.3 t ADT: 900

L-594

Good

Over: TRIB TO REEDY RIVER

8 MI SW OF FOUNTAIN INN, Greenville, SC

Built 2021 Load: 37.3 t ADT: 125

C-26-510

Good

Over: EVANS BRANCH

14 MI NW OF CONWAY, Horry, SC

Built 1993 Load: 37.3 t ADT: 250

S-31-36

Good

Over: TRIB SCAPE ORE SWAMP

7 MI W OF BISHOPVILLE, Lee, SC

Built 2017 Load: 37.3 t ADT: 500

S-31-108

Good

Over: SCAPE ORE SWAMP NO. 2

8 MI S OF BISHOPVILLE, Lee, SC

Built 2012 Load: 37.3 t ADT: 275

S-32-77

Good

Over: TWELVE MILE CREEK

3 MI SW LEXINGTON, Lexington, SC

Built 1977 Load: 37.3 t ADT: 7,500

S-32-235

Good

Over: HOLLOW CREEK

4 MI N OF LEESVILLE, Lexington, SC

Built 2014 Load: 37.3 t ADT: 150

SC 28

Good

Over: TAYLOR CREEK

3.7MI NW OF MCCORMICK, McCormick, SC

Built 1930 Load: 37.3 t ADT: 2,100

S-36-521

Good

Over: CRIMS CREEK

10.9 MI SE NEWBERRY, Newberry, SC

Built 1954 Load: 37.3 t ADT: 300

S-39-37

Good

Over: NS RR

7.0 MI E EASLEY, Pickens, SC

Built 1995 Load: 37.3 t ADT: 2,900

I-77 SB

Good

Over: GILLS CREEK

4 MI SE OF COLUMBIA, Richland, SC

Built 1982 Load: 37.3 t ADT: 41,350

I-77 NB

Good

Over: CONGAREE SWAMP

5 MI S OF COLUMBIA, Richland, SC

Built 1984 Load: 37.3 t ADT: 46,600

I-85 SB

Good

Over: LAWSON FORK CREEK

2.4 MI NW OF SPARTANBURG, Spartanburg, SC

Built 1993 Load: 37.3 t ADT: 41,250

US 17 NB

Good

Over: WALLACE RIVER

5 MI NE OF RAVENEL, Charleston, SC

Built 2008 Load: 37.6 t ADT: 16,450

SC 171/FOLLY RD

Good

Over: FOLLY RIVER

ON FOLLY ISLAND, Charleston, SC

Built 2016 Load: 37.6 t ADT: 17,600

SC 145

Good

Over: BIG BLACK CREEK

8.8 MI SW OF CHESTERFIELD, Chesterfield, SC

Built 2000 Load: 37.6 t ADT: 750

S-13-243

Good

Over: ADAMS CREEK

1.8 MI N OF CHESTERFIELD, Chesterfield, SC

Built 2019 Load: 37.6 t ADT: 250

S-15-46/RED OAK RD

Good

Over: CRAVEN BRANCH

3.8 MI NE COTTAGEVILLE, Colleton, SC

Built 2014 Load: 37.6 t ADT: 550

S-21-58

Good

Over: BROWNS SWAMP APPR.

8 MI SE LAKE CITY, Florence, SC

Built 1994 Load: 37.6 t ADT: 750

S-21-596

Good

Over: BR-BIG SWAMP

3 MI NW SALEM, Florence, SC

Built 1995 Load: 37.6 t ADT: 750

Showing 4,151-4,200 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.