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-15-45/ROUND O RD

Good

Over: TRIB BAPTIST CHURCH CK

3.8 MI SW COTTAGEVILLE, Colleton, SC

Built 2006 Load: 42.4 t ADT: 1,300

S-89/WOLFE CR RD

Good

Over: JONES SWAMP CREEK

6.8 MI NW WALTERBORO, Colleton, SC

Built 2014 Load: 42.4 t ADT: 75

SC 51

Good

Over: LITTLE SWAMP

1 MI NW OF SALEM, Florence, SC

Built 2018 Load: 42.4 t ADT: 1,800

S-23-335

Good

Over: TRIB ENOREE RIVER

5.4 MI NE GREENVILLE, Greenville, SC

Built 2018 Load: 42.4 t ADT: 10,000

S-23-1966

Good

Over: TRIB TO ENOREE RIVER

2.3 MI SW GREER, Greenville, SC

Built 2013 Load: 42.4 t ADT: 2,200

I-185 SBL

Good

Over: GROVE CREEK

SOUTH OF GREENVILLE, Greenville, SC

Built 1999 Load: 42.4 t ADT: 3,750

SC 544

Good

Over: LAKEWOOD SWAMP

1.6 MI WEST-SURFSIDE, Horry, SC

Built 1997 Load: 42.4 t ADT: 27,800

SC 462

Good

Over: ELBO CREEK

8.7 MI NW OF RIDGELAND, Jasper, SC

Built 2003 Load: 42.4 t ADT: 600

S-30-88

Good

Over: LOCAL STREAM

18.4 MI SE LAURENS, Laurens, SC

Built 1987 Load: 42.4 t ADT: 400

S-35-34

Good

Over: LITTLE PEE DEE

2 MI E MCCOLL, Marlboro, SC

Built 1999 Load: 42.4 t ADT: 650

S-36-37

Good

Over: SCOTTS CREEK

IN NEWBERRY, Newberry, SC

Built 1990 Load: 42.4 t ADT: 1,200

C-39-1399

Good

Over: UNNAMED CANAL

10 MI W OF PICKENS, Pickens, SC

Built 2006 Load: 42.4 t ADT: 200

C-39-1535

Good

Over: TOWN CREEK

4.6 MI NE OF PICKENS, Pickens, SC

Built 2007 Load: 42.4 t ADT: 200

L-40-4062

Good

Over: SMITH BRANCH

2 MI N OF COLUMBIA, Richland, SC

Built 1992 Load: 42.4 t ADT: 225

S-40-52

Good

Over: RR NS

11 MI NE OF COLUMBIA, Richland, SC

Built 2005 Load: 42.4 t ADT: 36,400

S-41-192

Good

Over: DAILEY CREEK

8.5 MI NE OF SALUDA, Saluda, SC

Built 1964 Load: 42.4 t ADT: 50

S-42-220

Good

Over: CSX RAILROAD

3.0 MI E GREER, Spartanburg, SC

Built 1998 Load: 42.4 t ADT: 2,500

S-43-251

Good

Over: NASTY BRANCH

7 MI SW SUMTER, Sumter, SC

Built 2001 Load: 42.4 t ADT: 2,600

S-338/INGLENOOK RD

Good

Over: BOGGY SWAMP BR

4 MI NE OF KINGSTREE, Williamsburg, SC

Built 2021 Load: 42.4 t ADT: 275

S-46-816

Good

Over: MUD CREEK

3.2 W HICKORY GROVE, York, SC

Built 2020 Load: 42.4 t ADT: 50

S-2-33

Good

Over: LITTLE HORSE CREEK

3.0 MI NW GRANITVILLE, Aiken, SC

Built 1990 Load: 42.8 t ADT: 12,000

S-1100

Good

Over: HEMBREE CREEK

ANDERSON CITY LIMITS, Anderson, SC

Built 1988 Load: 42.8 t ADT: 10,600

S-12-306

Good

Over: MC KELVEY BRANCH

13.1MI NW CHESTER, Chester, SC

Built 2010 Load: 42.8 t ADT: 25

S-13-683

Good

Over: BIG BLACK CREEK

4 MI SE PAGELAND, Chesterfield, SC

Built 2010 Load: 42.8 t ADT: 450

S-15-49/RUFFIN RD

Good

Over: JONES SWAMP

4.6 MI NW OF WALTERBORO, Colleton, SC

Built 1999 Load: 42.8 t ADT: 750

SC 34

Good

Over: PEE DEE RIVER SWAMP

7MI E DARLINGTON, Darlington, SC

Built 2005 Load: 42.8 t ADT: 1,600

S-18-49/QUAKER RD

Good

Over: COWTAIL CREEK

2.5 MI S ST GEORGE, Dorchester, SC

Built 2016 Load: 42.8 t ADT: 650

S-28-21

Good

Over: 25 MILE CREEK

5 MI W OF LUGOFF, Kershaw, SC

Built 2000 Load: 42.8 t ADT: 1,600

S-30-34

Good

Over: MILLERS FORK CREEK

5 MI NE OF CLINTON, Laurens, SC

Built 2023 Load: 42.8 t ADT: 175

S-38-92

Good

Over: MILL BRANCH

4MI NE BOWMAN, Orangeburg, SC

Built 2004 Load: 42.8 t ADT: 425

S-39-143

Good

Over: BIG ESTATOE CREEK

10.0 MI NW PICKENS, Pickens, SC

Built 1980 Load: 42.8 t ADT: 1,050

C-39-486

Good

Over: TRIB EIGHTEEN MILE CREEK

2.6 MI NE OF LIBERTY, Pickens, SC

Built 2009 Load: 42.8 t ADT: 200

S-44-71

Good

Over: BROWN CREEK

3.9 MI NE UNION, Union, SC

Built 1991 Load: 42.8 t ADT: 400

C-46-2054

Good

Over: GUYON MOORE CREEK

2.5 MI NW HICKORY GROVE, York, SC

Built 2009 Load: 42.8 t ADT: 225

US 601

Good

Over: HALFWAY SWAMP

2 MI NE OF ST. MATTHEWS, Calhoun, SC

Built 1993 Load: 43.1 t ADT: 2,200

S-11-34

Good

Over: STREAM

7.3MI NW GAFFNEY, Cherokee, SC

Built 2008 Load: 43.1 t ADT: 1,900

SC 9

Good

Over: ROCKY CREEK

3.7MI E OF CHESTER, Chester, SC

Built 2003 Load: 43.1 t ADT: 5,200

S-12-383

Good

Over: DRY FORK CREEK

1.1 MI W. OF CHESTER, Chester, SC

Built 1974 Load: 43.1 t ADT: 650

S-14-19

Good

Over: NEWMANS CREEK

6MI SE TURBEVILLE, Clarendon, SC

Built 1998 Load: 43.1 t ADT: 275

SC 34

Good

Over: MAPLE SWAMP

TOWN OF DILLON, Dillon, SC

Built 1936 Load: 43.1 t ADT: 6,600

SC 165/DELEMAR HWY

Good

Over: FISHBURNE CREEK

FISHBURNE CREEK (1), Dorchester, SC

Built 2009 Load: 43.1 t ADT: 7,300

S-163/SUMMERS DR

Good

Over: UNKNOWN CREEK

10.0 MI SW SUMMERVILLE, Dorchester, SC

Built 2011 Load: 43.1 t ADT: 750

S-22/ORANGEBURG RD

Good

Over: NEGRO BRANCH

3.7 MI W SUMMERVILLE, Dorchester, SC

Built 1999 Load: 43.1 t ADT: 13,100

S-21-278

Good

Over: LYNCHES LAKE

LAKE CITY, Florence, SC

Built 1997 Load: 43.1 t ADT: 4,600

I-85 NB

Good

Over: BRUSHY CREEK

1MI S OF GREENVILLE, Greenville, SC

Built 1998 Load: 43.1 t ADT: 55,250

L-23-3557

Good

Over: MIDDLE SALUDA RIVER

12.6 MI NW TRAVELERS REST, Greenville, SC

Built 1999 Load: 43.1 t ADT: 125

S-23-272

Good

Over: HUFF CREEK

5.8MI SW SIMPSONVILLE, Greenville, SC

Built 2000 Load: 43.1 t ADT: 2,600

S-26-591

Good

Over: BROWN SWAMP

7MI W CONWAY, Horry, SC

Built 1996 Load: 43.1 t ADT: 2,400

SC 31 NB

Good

Over: WETLAND

3 MI N MYRTLE BEACH, Horry, SC

Built 2016 Load: 43.1 t ADT: 12,000

S-26-24

Good

Over: CHINNER BRANCH

1 MI S OF AYNOR, Horry, SC

Built 2019 Load: 43.1 t ADT: 1,450

Showing 4,551-4,600 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.