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 321

Good

Over: BIRDS BRANCH

2MI S OF OLAR, Bamberg, SC

Built 1940 Load: 48.0 t ADT: 1,200

US 301

Good

Over: BLACK RIVER (NO. 3)

8MI N OF MANNING, Clarendon, SC

Built 2017 Load: 48.0 t ADT: 1,650

S-15-328

Good

Over: DRY BRANCH

17.8 MI NW WALT'B, Colleton, SC

Built 2015 Load: 48.0 t ADT: 125

S-15-436

Good

Over: TRIB TO ASHEPOO RIVER

10.5MI SE WALTERBORO, Colleton, SC

Built 1992 Load: 48.0 t ADT: 275

C-23-6364

Good

Over: HUFF CREEK

6 MI SW SIMPSONVILLE, Greenville, SC

Built 2015 Load: 48.0 t ADT: 125

C-23-831

Good

Over: WHITMIRE BRANCH

2 MI NW OF TRAVELERS REST, Greenville, SC

Built 2018 Load: 48.0 t ADT: 125

S-26-1246

Good

Over: SOCASTEE SWAMP

N OF MYRTLE BEACH, Horry, SC

Built 2004 Load: 48.0 t ADT: 250

US 521 NB

Good

Over: CANE CREEK

3.7 MI N OF LANCASTER, Lancaster, SC

Built 2021 Load: 48.0 t ADT: 24,300

S-31-52

Good

Over: LITTLE LONG BRANCH

1 MI NW OF MAYESVILLE, Lee, SC

Built 2021 Load: 48.0 t ADT: 200

S-41-31

Good

Over: PERSIMMON CREEK

5.7 MI NE OF SALUDA, Saluda, SC

Built 2020 Load: 48.0 t ADT: 175

S-3-44

Good

Over: PIPE CREEK

1.5MI SW ALLENDALE, Allendale, SC

Built 2004 Load: 48.3 t ADT: 125

S-4-668

Good

Over: WILSONS CREEK

2.2MI NE IVA, Anderson, SC

Built 2012 Load: 48.3 t ADT: 450

S-11-15

Good

Over: THICKETTY CREEK

10.4 MI SE GAFFNEY, Cherokee, SC

Built 1997 Load: 48.3 t ADT: 100

S-23-134

Good

Over: BEAVERDAM CREEK

4.8MI N GREER, Greenville, SC

Built 2011 Load: 48.3 t ADT: 1,700

S-23-201 RAMP

Good

Over: BRUSHY CREEK

1.4 MI. S OF GREENVILLE, Greenville, SC

Built 1998 Load: 48.3 t ADT: 2,000

S-30-64

Good

Over: WALNUT CREEK

10.7 MI SW LAURENS, Laurens, SC

Built 1989 Load: 48.3 t ADT: 175

SC 917

Good

Over: LITTLE PEE DEE SWP (2)

4 MI SE OF MULLINS, Marion, SC

Built 2012 Load: 48.3 t ADT: 2,900

I-77 NB

Good

Over: RAMP ON I-77 SB

5 MI SE OF SPRINGDALE, Richland, SC

Built 1984 Load: 48.3 t ADT: 31,200

I-77 SB

Good

Over: RR CSXT

1.0 MI W OF US 378, Richland, SC

Built 1988 Load: 48.3 t ADT: 35,450

C-42-1956

Good

Over: CHEROKEE CREEK

15 NE OF SPARTANBURG, Spartanburg, SC

Built 2008 Load: 48.3 t ADT: 225

S-10-1958

Good

Over: TRIB TO PENNYS CREEK

6.8 MI SW CHAS, Charleston, SC

Built 2010 Load: 48.6 t ADT: 25

S-11-77

Good

Over: BR. HORSE CREEK

12.8 MI NW OF GAFFNEY, Cherokee, SC

Built 2021 Load: 48.6 t ADT: 50

C-26-375

Good

Over: JONES BIG SWAMP

3MI NW OF N MYRTLE BEACH, Horry, SC

Built 2015 Load: 48.6 t ADT: 250

SC 12 WB

Good

Over: RR CSXT & RR NS

CITY OF COLUMBIA, Richland, SC

Built 1986 Load: 48.6 t ADT: 14,450

S-1-218

Good

Over: BRANCH OF PENNY CREEK

3.1 MI SE OF ANTREVILLE, Abbeville, SC

Built 2021 Load: 48.9 t ADT: 125

S-12-53

Good

Over: TURKEY BRANCH

4.0 MI S.W./GREAT FALLS, Chester, SC

Built 2005 Load: 48.9 t ADT: 250

S-14-440

Good

Over: BALLARD CREEK

2 MI S PINEWOOD, Clarendon, SC

Built 2013 Load: 48.9 t ADT: 325

US 521

Good

Over: CSX RAILROAD

ANDREWS, Georgetown, SC

Built 2006 Load: 48.9 t ADT: 1,200

US 521

Good

Over: CSX RAILROAD

ANDREWS, Georgetown, SC

Built 2006 Load: 48.9 t ADT: 1,200

C-23-588

Good

Over: TRIB TO REEDY RIVER

7 MI SW FOUNTAIN INN, Greenville, SC

Built 2019 Load: 48.9 t ADT: 125

S-31-29

Good

Over: SCAPE ORE CREEK

5 MI W OF BISHOPVILLE, Lee, SC

Built 2015 Load: 48.9 t ADT: 1,050

S-38-136

Good

Over: SANDY RUN SWAMP

6MI E HOLLY HILL, Orangeburg, SC

Built 1997 Load: 48.9 t ADT: 550

C-39-644

Good

Over: TRIB OF LITTLE CROW CR

7.5 MI W OF PICKENS, Pickens, SC

Built 2010 Load: 48.9 t ADT: 25

S-46-503

Good

Over: FISHING CREEK

4.2 MI SW ROCK HILL, York, SC

Built 1998 Load: 48.9 t ADT: 275

C-4-732

Good

Over: FIVE MILE CR

4.3 MI WEST ANDERSON, Anderson, SC

Built 1988 Load: 49.2 t ADT: 175

S-8-48/BETHERA RD

Good

Over: WHISKINBOO CREEK

9.5MI NE MONCKS CORNER, Berkeley, SC

Built 2000 Load: 49.2 t ADT: 350

C-10-4438

Good

Over: TIDAL CREEK

WEST ASHLEY, Charleston, SC

Built 2020 Load: 49.2 t ADT: 225

US 301

Good

Over: BLACK SWAMP (NO. 1)

8MI N OF MANNING, Clarendon, SC

Built 2017 Load: 49.2 t ADT: 1,650

S-1-133

Good

Over: MCCORDS CREEK

3.0MI NE ABBEVILLE, Abbeville, SC

Built 1998 Load: 49.6 t ADT: 3,000

S-3-47

Good

Over: COOSAWHATCHIE RIVER

3MI S ALLENDALE, Allendale, SC

Built 2016 Load: 49.6 t ADT: 225

L-7-5929

Good

Over: MARSH

12.8 MI SW OF BEAUFORT, Beaufort, SC

Built 2004 Load: 49.6 t ADT: 425

S-8-49

Good

Over: ECHAW CREEK #1

8MI SE JAMESTOWN, Berkeley, SC

Built 2003 Load: 49.6 t ADT: 325

S-17-42

Good

Over: BR OF BUCK SWAMP

5MI SW LAKE VIEW, Dillon, SC

Built 2012 Load: 49.6 t ADT: 325

SC 165/DELEMAR HWY

Good

Over: FISHBURNE CREEK

FISHBURNE CREEK (2), Dorchester, SC

Built 2009 Load: 49.6 t ADT: 7,300

S-20-20

Good

Over: BIG WATEREE CREEK

9.3MI NE WINNSBORO, Fairfield, SC

Built 2008 Load: 49.6 t ADT: 100

S-22-264

Good

Over: ST. PAULS BRANCH

8MI NW MURRELLS INLET, Georgetown, SC

Built 2010 Load: 49.6 t ADT: 300

S-32-175

Good

Over: RAWLS CREEK

1 MI W OF IRMO, Lexington, SC

Built 2014 Load: 49.6 t ADT: 9,000

S-45-39

Good

Over: BOGGY SWAMP

8.0 MI W HEMINGWAY, Williamsburg, SC

Built 2016 Load: 49.6 t ADT: 750

S-8-88/MURRAY DR

Good

Over: TURKEY CREEK

IN HANAHAN, Berkeley, SC

Built 2005 Load: 49.9 t ADT: 13,300

S-133/STEED CR RD

Good

Over: YORK BOTTOM CREEK

1.0 MI SE HUGER, Berkeley, SC

Built 2006 Load: 49.9 t ADT: 600

Showing 4,851-4,900 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.