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-42-74

Good

Over: RAINBOW LAKE

6.0 MI NE INMAN, Spartanburg, SC

Built 1995 Load: 34.7 t ADT: 1,400

S-44-127

Good

Over: UNNAMED STREAM

UNION, Union, SC

Built 2019 Load: 34.7 t ADT: 700

S-45-186

Good

Over: BROWNS BRANCH

NE OF KINGSTREE, Williamsburg, SC

Built 1999 Load: 34.7 t ADT: 4,400

SC 274

Good

Over: BIG ALLISON CREEK

4.1 MI N OF NEWPORT, York, SC

Built 2011 Load: 34.7 t ADT: 6,900

S-1-128

Good

Over: BLUE HILL CREEK

CITY OF ABBEVILLE, Abbeville, SC

Built 2003 Load: 35.0 t ADT: 700

SC 184

Good

Over: CHICKASAW CREEK

10.1 MI NW OF ABBEVILLE, Abbeville, SC

Built 1983 Load: 35.0 t ADT: 850

SC 4

Good

Over: BURCALE CREEK

9 MI SW OF WAGENER, Aiken, SC

Built 1932 Load: 35.0 t ADT: 3,400

S-11-72

Good

Over: THICKETTY CREEK

7.8MI SW GAFFNEY, Cherokee, SC

Built 2016 Load: 35.0 t ADT: 275

SC 212/WILLIAMS RD

Good

Over: BUCKHEAD CREEK (1)

2 MI S OF WILLIAMS, Colleton, SC

Built 1974 Load: 35.0 t ADT: 425

S-19-275

Good

Over: WIMBLEY BRANCH

6.3MI SE JOHNSTON, Edgefield, SC

Built 2016 Load: 35.0 t ADT: 150

US 378

Good

Over: LYNCHES RIVER

6MI NE LAKE CITY, Florence, SC

Built 2017 Load: 35.0 t ADT: 6,000

S-21-551

Good

Over: WILLOW CREEK

2MI N EVERGREEN, Florence, SC

Built 1995 Load: 35.0 t ADT: 1,250

SC 14

Good

Over: ROCKY CREEK

6.5 MI S OF GREER, Greenville, SC

Built 1984 Load: 35.0 t ADT: 14,000

C-26-1895

Good

Over: UNNAMED CREEK

CAROLINA FOREST BLVD, Horry, SC

Built 1995 Load: 35.0 t ADT: 4,800

S-29-330

Good

Over: BRANCH OF GILLS CREEK

5 MILES EAST OF LANCASTER, Lancaster, SC

Built 2008 Load: 35.0 t ADT: 1,450

SC 72

Good

Over: BEAVER DAM CREEK

9.2 MI SE OF LAURENS, Laurens, SC

Built 2004 Load: 35.0 t ADT: 6,200

S-30-377

Good

Over: SOUTH RABON CREEK

6.0 MI W GRAY COURT, Laurens, SC

Built 2010 Load: 35.0 t ADT: 375

US 378

Good

Over: HORSE CREEK

12 MI NW OF LEESVILLE, Lexington, SC

Built 2021 Load: 35.0 t ADT: 9,900

US 378

Good

Over: HOLLOW CREEK

12 MI NW OF LEESVILLE, Lexington, SC

Built 2021 Load: 35.0 t ADT: 9,900

US 76 EB

Good

Over: NS RR

3.0 MI W OF SENECA, Oconee, SC

Built 1965 Load: 35.0 t ADT: 7,250

S-38-82

Good

Over: CANTY BRANCH

5 MI S ELLOREE, Orangeburg, SC

Built 1948 Load: 35.0 t ADT: 100

I-77 NB

Good

Over: RR CSXT

5 MI SE OF COLUMBIA, Richland, SC

Built 1988 Load: 35.0 t ADT: 35,450

S-43-41

Good

Over: ROCKY BLUFF SWAMP

8 MI E OF SUMTER, Sumter, SC

Built 1994 Load: 35.0 t ADT: 400

S-43-46

Good

Over: ROCKY BLUFF SWAMP

4 MI N OF SUMTER, Sumter, SC

Built 1996 Load: 35.0 t ADT: 1,100

SC 72

Good

Over: CANE CREEK

1.5 MI W OF CARLISLE, Union, SC

Built 2013 Load: 35.0 t ADT: 2,300

S-45-220

Good

Over: DICKIE SWAMP

3 MI NW OF SALTERS, Williamsburg, SC

Built 2005 Load: 35.0 t ADT: 125

S-46-363

Good

Over: BEAVER DAM CREEK

4.2 MI SW HICKORY GROVE, York, SC

Built 1995 Load: 35.0 t ADT: 150

US 278

Good

Over: THREE RUNS CREEK

4 MI SE OF NEW ELLENTON, Aiken, SC

Built 2019 Load: 35.3 t ADT: 4,700

S-4-205

Good

Over: TRIB TO BROAD MOUTH

3.0 MI SE BELTON, Anderson, SC

Built 1995 Load: 35.3 t ADT: 325

S-1271/BOWMAN RD

Good

Over: SHEM CREEK

MT PLEASANT, Charleston, SC

Built 2012 Load: 35.3 t ADT: 17,900

S-12-75

Good

Over: TRIB TO ROCKY CREEK

1.6M SW GREAT FALLS, Chester, SC

Built 1985 Load: 35.3 t ADT: 275

S-13-60

Good

Over: ADAMS CREEK

2.2 MI N CHESTERFIELD, Chesterfield, SC

Built 2004 Load: 35.3 t ADT: 500

S-13-138

Good

Over: LITTLE BLACK CREEK

9.6 MI E OF JEFFERSON, Chesterfield, SC

Built 2020 Load: 35.3 t ADT: 600

S-17-286

Good

Over: HAYES SWAMP

4MI N DILLON, Dillon, SC

Built 1994 Load: 35.3 t ADT: 275

S-19-21

Good

Over: ROCK CREEK

7.1 MI NW EDGEFIELD, Edgefield, SC

Built 1995 Load: 35.3 t ADT: 300

SC 34

Good

Over: MOORE CREEK

1.5 MI W OF WINNSBORO, Fairfield, SC

Built 1926 Load: 35.3 t ADT: 2,000

S-21-35

Good

Over: LAKE SWAMP

6 MI SE TIMMONSVILLE, Florence, SC

Built 1993 Load: 35.3 t ADT: 950

S-21-58

Good

Over: BROWNS SWAMP APPR.

8 MI SE LAKE CITY, Florence, SC

Built 1994 Load: 35.3 t ADT: 750

S-22-36

Good

Over: BELLS SWAMP

10MI NW YAUHANNA, Georgetown, SC

Built 1995 Load: 35.3 t ADT: 500

SC 101

Good

Over: TRIB TO CLEAR CREEK

3 MI NW OF GREER, Greenville, SC

Built 1948 Load: 35.3 t ADT: 10,400

L-23-886

Good

Over: LAUREL CREEK

3.5 MI N OF MAULDIN, Greenville, SC

Built 2019 Load: 35.3 t ADT: 75

S-26-106

Good

Over: GRIER SWAMP

CITY OF CONWAY, Horry, SC

Built 2016 Load: 35.3 t ADT: 1,050

S-26-99

Good

Over: DAWSEY SWAMP

1 MI N GALIVANTS FERRY, Horry, SC

Built 1994 Load: 35.3 t ADT: 500

S-26-62

Good

Over: BRUNSON SWAMP

10 MI W CONWAY, Horry, SC

Built 1995 Load: 35.3 t ADT: 800

S-26-97

Good

Over: WHITE OAK SWAMP

9 MI S LORIS, Horry, SC

Built 1995 Load: 35.3 t ADT: 900

S-26-97

Good

Over: WHITE OAK SWAMP

9 MI S LORIS, Horry, SC

Built 1995 Load: 35.3 t ADT: 900

S-26-97

Good

Over: WHITE OAK SWAMP

9 MI S LORIS, Horry, SC

Built 1995 Load: 35.3 t ADT: 900

S-26-97

Good

Over: WHITE OAK SWAMP

9 MI S LORIS, Horry, SC

Built 1995 Load: 35.3 t ADT: 900

S-28-349

Good

Over: HORSEPEN CREEK

3 MI NE OF ELGIN, Kershaw, SC

Built 1997 Load: 35.3 t ADT: 2,900

SC 5

Good

Over: CATAWBA RV & S.C.L. RR

YORK CO LINE, Lancaster, SC

Built 2013 Load: 35.3 t ADT: 16,700

Showing 4,001-4,050 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.