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-11-30

Good

Over: DOOLITTLE CREEK

4.3 MI SW BLACKSBURG, Cherokee, SC

Built 1996 Load: 34.0 t ADT: 950

SC 9

Good

Over: BROAD RIVER

UNION CO LN, Chester, SC

Built 2019 Load: 34.0 t ADT: 3,600

S-13-34

Good

Over: DEEP CREEK

3 MI NW OF CHESTERFIELD, Chesterfield, SC

Built 2020 Load: 34.0 t ADT: 350

S-21-35

Good

Over: LAKE SWAMP

6 MI SE TIMMONSVILLE, Florence, SC

Built 1993 Load: 34.0 t ADT: 950

S-26-78

Good

Over: BROWN SWAMP

7 MI SW CONWAY, Horry, SC

Built 1995 Load: 34.0 t ADT: 2,100

US 278/INDPNDCBLVD

Good

Over: UNNAMED STREAM

2.4 MI NW OF OKATIE, Jasper, SC

Built 1986 Load: 34.0 t ADT: 31,500

US 76

Good

Over: LICK CREEK

6.7 MI NW OF LAURENS, Laurens, SC

Built 2007 Load: 34.0 t ADT: 3,500

S-30-701

Good

Over: BR TO N.RABON CK

2.7 MI W GRAY COURT, Laurens, SC

Built 2004 Load: 34.0 t ADT: 250

US 29 SB

Good

Over: NORTH TYGER RIVER

6 MI W OF SPARTANBURG, Spartanburg, SC

Built 2021 Load: 34.0 t ADT: 13,350

S-45-142

Good

Over: BOGGY SWAMP

3.0 MI S KINGSTREE, Williamsburg, SC

Built 1995 Load: 34.0 t ADT: 650

S-46-347

Good

Over: STONY FORK CREEK

8.2 MI W ROCK HILL, York, SC

Built 2017 Load: 34.0 t ADT: 1,250

S-1-111

Good

Over: TURKEY CREEK

3.3MI NE DONALDS, Abbeville, SC

Built 2015 Load: 34.3 t ADT: 150

S-4-527

Good

Over: WHITNER CREEK

CITY OF ANDERSON, Anderson, SC

Built 1971 Load: 34.3 t ADT: 2,200

S-6-38

Good

Over: DAVIS MILL BRANCH

5 MI NE BLACKVILLE, Barnwell, SC

Built 2006 Load: 34.3 t ADT: 225

SC 33

Good

Over: FOUR HOLE SWAMP

0.5MI S OF CAMERON, Calhoun, SC

Built 1939 Load: 34.3 t ADT: 1,650

SC 45

Good

Over: MECHAW CREEK

5 MI N OF MCCLELLANVILLE, Charleston, SC

Built 1978 Load: 34.3 t ADT: 400

RAMP ON SC 30 WB

Good

Over: S-30EB/LOCKWOOD DR

CITY OF CHARLESTON, Charleston, SC

Built 1993 Load: 34.3 t ADT: 31,600

S-12-335

Good

Over: TRIB OF GRASSY RUN BR

3MI E CHESTER, Chester, SC

Built 2003 Load: 34.3 t ADT: 1,650

S-12-54

Good

Over: SUSYBOLE CR

11.5MI NW CHESTER, Chester, SC

Built 1997 Load: 34.3 t ADT: 75

S-13-148

Good

Over: THOMPSON CREEK

2.5 MI S CHERAW, Chesterfield, SC

Built 2003 Load: 34.3 t ADT: 650

SC 327 SB

Good

Over: BLACK CREEK

6MI NE OF FLORENCE, Florence, SC

Built 1971 Load: 34.3 t ADT: 5,050

C-23-4922

Good

Over: ROCKY CREEK

6.2 MI E GREENVILLE, Greenville, SC

Built 2014 Load: 34.3 t ADT: 250

C-23-3926

Good

Over: GRAZE BRANCH

6.6 MILES N FOUNTAIN INN, Greenville, SC

Built 2013 Load: 34.3 t ADT: 150

C-23-634

Good

Over: HORSE CREEK

10 MI SW OF FOUNTAIN INN, Greenville, SC

Built 1967 Load: 34.3 t ADT: 125

S-29-149

Good

Over: TURKEY QUARTER CREEK

4MI SE LANCASTER, Lancaster, SC

Built 2003 Load: 34.3 t ADT: 550

SC 200

Good

Over: TRIB TO CANE CK

7.0 MI N OF LANCASTER, Lancaster, SC

Built 1922 Load: 34.3 t ADT: 3,400

S-29-185

Good

Over: CANE CREEK

5MI N LANCASTER, Lancaster, SC

Built 2014 Load: 34.3 t ADT: 900

S-32-34

Good

Over: ROCKY FORD CREEK

5 MI SW OF GILBERT, Lexington, SC

Built 1948 Load: 34.3 t ADT: 3,800

S-36-32

Good

Over: INDIAN CREEK

9.3 MI NW NEWBERRY, Newberry, SC

Built 2016 Load: 34.3 t ADT: 125

S-42-52

Good

Over: MOTLOW CREEK

6.5MI NW INMAN, Spartanburg, SC

Built 2003 Load: 34.3 t ADT: 1,000

SC 292

Good

Over: JORDAN CK-LAKE COOLEY

3.0MI S OF INMAN, Spartanburg, SC

Built 1976 Load: 34.3 t ADT: 9,600

C-42-940

Good

Over: NORTH PACOLET RIVER

5.3 MI E OF LANDRUM, Spartanburg, SC

Built 1990 Load: 34.3 t ADT: 225

S-43-370

Good

Over: MUSH BRANCH

8 MI W SUMTER, Sumter, SC

Built 1997 Load: 34.3 t ADT: 1,000

S-45-317

Good

Over: BR OF OX SWAMP

6.0 MI E LANE, Williamsburg, SC

Built 2007 Load: 34.3 t ADT: 450

US 21

Good

Over: CATAWBA RIVER

4.1 MI N OF ROCK HILL, York, SC

Built 2013 Load: 34.3 t ADT: 30,300

S-46-816

Good

Over: GUYONMOORE CREEK

2.1 MI W HICKORY GROVE, York, SC

Built 2015 Load: 34.3 t ADT: 50

S-46-657

Good

Over: DUTCHMANS CREEK

5.7 MI N ROCK HILL, York, SC

Built 2011 Load: 34.3 t ADT: 1,200

S-46-962

Good

Over: BIG DUTCHMAN CREEK

5.9 MI N ROCK HILL, York, SC

Built 2012 Load: 34.3 t ADT: 1,300

S-1-228

Good

Over: CHARLIES CREEK

1.1MI NE LOWNDESVILLE, Abbeville, SC

Built 1982 Load: 34.7 t ADT: 125

S-4-22

Good

Over: DEVIL FORK CREEK

7.1MI SW ANDERSON, Anderson, SC

Built 1959 Load: 34.7 t ADT: 3,300

S-12-304

Good

Over: DRY FORK CREEK

2.8 MI W CHESTER, Chester, SC

Built 1997 Load: 34.7 t ADT: 400

SC 212/WILLIAMS RD

Good

Over: BUCKHEAD CREEK (2)

2 MI S OF WILLIAMS, Colleton, SC

Built 1974 Load: 34.7 t ADT: 425

S-19-311

Good

Over: BEECH CREEK

4.5MI E JOHNSTON, Edgefield, SC

Built 2016 Load: 34.7 t ADT: 100

S-19-39

Good

Over: TURKEY CREEK

5.2MI NW JOHNSTON, Edgefield, SC

Built 2019 Load: 34.7 t ADT: 100

S-20-101

Good

Over: JUNE CREEK

14.5MI E WINNSBORO, Fairfield, SC

Built 1999 Load: 34.7 t ADT: 850

S-29-471

Good

Over: BR OF GILLS CR

CITY OF LANCASTER, Lancaster, SC

Built 2018 Load: 34.7 t ADT: 6,200

S-32-51

Good

Over: BEAR CREEK

2 MI SW CHAPIN, Lexington, SC

Built 2009 Load: 34.7 t ADT: 8,900

S-32-278

Good

Over: BLACK CREEK

10 MI S OF GILBERT, Lexington, SC

Built 1994 Load: 34.7 t ADT: 2,100

SC 381

Good

Over: BEAVER DAM CREEK (NO. 1)

1MI S OF MCCOLL, Marlboro, SC

Built 1986 Load: 34.7 t ADT: 1,450

S-42-57

Good

Over: CSXT

4.0 MI W COWPENS, Spartanburg, SC

Built 1994 Load: 34.7 t ADT: 16,200

Showing 3,951-4,000 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.