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

SC 247

Good

Over: SALUDA RIVER

4.6 MI NE BELTON, Anderson, SC

Built 2001 Load: 23.7 t ADT: 3,300

L-8365/QUEENSGTWAY

Good

Over: TIDAL CREEK

IN MT. PLEASANT, Charleston, SC

Built 2000 Load: 23.7 t ADT: 600

SC 97

Good

Over: ROCKY CREEK

2.5MI NW OF GREAT FALLS, Chester, SC

Built 2016 Load: 23.7 t ADT: 1,900

S-13-20

Good

Over: BEAVER CREEK

8.3 MI SE CHESTERFIELD, Chesterfield, SC

Built 1978 Load: 23.7 t ADT: 850

SC 151 NBL

Good

Over: FORK CREEK

1.5 MI SE JEFFERSON, Chesterfield, SC

Built 1994 Load: 23.7 t ADT: 3,000

US 378

Good

Over: LITTLE PEE DEE RIVER

MARION CO LN, Horry, SC

Built 2012 Load: 23.7 t ADT: 8,800

SC 22 WB

Good

Over: ICWW OVERFLOW

1.5MI N BRIARCLIFF ACRES, Horry, SC

Built 2000 Load: 23.7 t ADT: 14,750

S-42-213

Good

Over: SOUTH PACOLET RIVER

6.0 MI NE INMAN, Spartanburg, SC

Built 1997 Load: 23.7 t ADT: 2,400

S-44-12

Good

Over: SPEARS CREEK BRANCH

8.6 MI NW UNION, Union, SC

Built 1947 Load: 23.7 t ADT: 550

S-44-24

Good

Over: BRUSHY CREEK

6.1 MI SE UNION, Union, SC

Built 1986 Load: 23.7 t ADT: 225

SC 24

Good

Over: BYRUM CREEK

1.3 MI W OF ANDERSON, Anderson, SC

Built 1948 Load: 24.0 t ADT: 8,400

L-5355/RVRTWNECCDR

Good

Over: TIDAL CREEK

MT PLEASANT, Charleston, SC

Built 1999 Load: 24.0 t ADT: 600

US 29

Good

Over: BIG THICKETTY CREEK

4.7 MI SW OF GAFFNEY, Cherokee, SC

Built 2005 Load: 24.0 t ADT: 7,900

S-13-114

Good

Over: HARRIS CREEK

7 MI SE PATRICK, Chesterfield, SC

Built 1986 Load: 24.0 t ADT: 200

US 17 ALT

Good

Over: CHESSEY CREEK

1.5 MI W OF COTTAGEVILLE, Colleton, SC

Built 1937 Load: 24.0 t ADT: 7,700

S-23-347

Good

Over: BRUSHY CREEK

5.3 MI SW GREER, Greenville, SC

Built 2006 Load: 24.0 t ADT: 10,900

S-42-1550

Good

Over: FAIR FOREST CREEK

0.8 MI W. SPARTANBURG, Spartanburg, SC

Built 1947 Load: 24.0 t ADT: 1,400

S-4-22

Good

Over: BIG GENEROSTEE CRK

1.2MI W ANDERSON, Anderson, SC

Built 1940 Load: 24.3 t ADT: 5,600

SC 72

Good

Over: SANDY RIVER

11.8MI S OF CHESTER, Chester, SC

Built 2018 Load: 24.3 t ADT: 2,900

S-12-476

Good

Over: BR OF TURKEY CK

11.2 MI W LOWRY, Chester, SC

Built 1978 Load: 24.3 t ADT: 125

S-13-271

Good

Over: BR-ROCK CREEK

4.2 MI SE JEFFERSON, Chesterfield, SC

Built 1985 Load: 24.3 t ADT: 75

US 15 BUS

Good

Over: KILBORN MILL POND

1MI NE OF HARTSVILLE, Darlington, SC

Built 1931 Load: 24.3 t ADT: 7,700

SC 129

Good

Over: FREYS CREEK

3.0 MI N OF WELLFORD, Spartanburg, SC

Built 1962 Load: 24.3 t ADT: 8,400

S-44-439

Good

Over: BR BUFFALO CR.

CITY OF UNION, Union, SC

Built 1975 Load: 24.3 t ADT: 50

S-46-22

Good

Over: STEEL CREEK

5.6 MI N FORT MILL, York, SC

Built 2018 Load: 24.3 t ADT: 13,000

SC 64

Good

Over: GEORGES CREEK

4MI W OF OLAR, Bamberg, SC

Built 1955 Load: 24.6 t ADT: 1,000

US 178/E MAIN ST

Good

Over: WALNUT CREEK (NO. 1)

5 MI S OF HARLEYVILLE, Dorchester, SC

Built 1928 Load: 24.6 t ADT: 2,500

S-23-87

Good

Over: REEDY RIVER

3.9MI NW GREENVILLE, Greenville, SC

Built 1950 Load: 24.6 t ADT: 11,900

C-23-7648

Good

Over: PETERS CREEK

2 MI E OF MAULDIN, Greenville, SC

Built 2007 Load: 24.6 t ADT: 495

US 378

Good

Over: LITTLE PEE DEE SWAMP

10 MI W OF CONWAY, Horry, SC

Built 2012 Load: 24.6 t ADT: 8,800

SC 31 SBL

Good

Over: WETLAND

23.4 MI NE OF SOCASTEE, Horry, SC

Built 2002 Load: 24.6 t ADT: 16,650

SC 31 NBL

Good

Over: WETLAND

23.4 MI NE OF SOCASTEE, Horry, SC

Built 2002 Load: 24.6 t ADT: 16,650

SC 183

Good

Over: CANE CREEK

1.0 MI N OF WALHALLA, Oconee, SC

Built 1936 Load: 24.6 t ADT: 6,100

S-42-128

Good

Over: NORTH PACOLET RIVER

3.0 MI E LANDRUM, Spartanburg, SC

Built 2011 Load: 24.6 t ADT: 5,600

C-42-590

Good

Over: REEDY CREEK

4.6 MI S SPARTANBURG, Spartanburg, SC

Built 1983 Load: 24.6 t ADT: 3,200

S-44-22

Good

Over: ENOREE RIVER

13.5 MI SW UNION, Union, SC

Built 2017 Load: 24.6 t ADT: 475

SC 461 NB

Good

Over: RR CSXT

8.2 MI NW CHARLESTON, Charleston, SC

Built 1994 Load: 24.9 t ADT: 22,650

S-12-195

Good

Over: FISHING CREEK

6.8MI N RICHBURG, Chester, SC

Built 1975 Load: 24.9 t ADT: 200

S-21-46

Good

Over: LYNCHES RIVER

4.5 MI E COWARDS, Florence, SC

Built 1977 Load: 24.9 t ADT: 1,400

S-23-50

Good

Over: TRIB TO HUFF CREEK

6.3MI SW SIMPSONVILLE, Greenville, SC

Built 1948 Load: 24.9 t ADT: 2,800

SC 146

Good

Over: LAUREL CREEK

3.5 MI E OF GREENVILLE, Greenville, SC

Built 1939 Load: 24.9 t ADT: 15,300

C-23-728

Good

Over: MOUNTAIN CREEK

12.2 MI SW FOUNTAIN INN, Greenville, SC

Built 1983 Load: 24.9 t ADT: 275

C-24-177

Good

Over: REEDY BRANCH

13.7 MI SW OF G'WD, Greenwood, SC

Built 1988 Load: 24.9 t ADT: 200

C-26-440

Good

Over: HALFWAY SWAMP

7.0 MI S OF CONWAY, Horry, SC

Built 1920 Load: 24.9 t ADT: 250

S-26-19

Good

Over: LAKE SWAMP

9 MI NE AYNOR, Horry, SC

Built 1982 Load: 24.9 t ADT: 1,650

SC 31 SBL

Good

Over: WETLANDS

20.8 MI NE SOCASTEE, Horry, SC

Built 2002 Load: 24.9 t ADT: 21,400

SC 31 NBL

Good

Over: WETLANDS

20.8 MI NE SOCASTEE, Horry, SC

Built 2002 Load: 24.9 t ADT: 21,400

S-28-37

Good

Over: SAWNEYS CREEK

8 MI NW OF CAMDEN, Kershaw, SC

Built 2005 Load: 24.9 t ADT: 1,150

US 176

Good

Over: ROCKY CREEK

14.3 MI SE OF NEWBERRY, Newberry, SC

Built 1949 Load: 24.9 t ADT: 2,800

US 178

Good

Over: ROCKY BOTTOM CREEK

16MI NW OF PICKENS, Pickens, SC

Built 1932 Load: 24.9 t ADT: 800

Showing 3,401-3,450 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.