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-30-37

Good

Over: LITTLE RIVER

3.0 MI SE LAURENS, Laurens, SC

Built 1994 Load: 35.3 t ADT: 275

S-31-37

Good

Over: UNNAMED STREAM

11 MI SW OF BISHOPVILLE, Lee, SC

Built 1993 Load: 35.3 t ADT: 350

US 15

Good

Over: GREAT PEE DEE SWP (2)

8 MI SW BENNETTSVILLE, Marlboro, SC

Built 2008 Load: 35.3 t ADT: 4,200

US 15

Good

Over: GREAT PEE DEE SWP (4)

4.5 MI NE SOCIETY HILL, Marlboro, SC

Built 2005 Load: 35.3 t ADT: 4,200

S-39-138

Good

Over: WOLF CREEK

2.0 MI SW PICKENS, Pickens, SC

Built 2001 Load: 35.3 t ADT: 475

SC 194

Good

Over: BURNETS CREEK

1.6 MI NE SALUDA, Saluda, SC

Built 1943 Load: 35.3 t ADT: 1,300

S-41-26

Good

Over: CLOUDS CR OVERFLOW

10.4 MI SE SALUDA, Saluda, SC

Built 1985 Load: 35.3 t ADT: 850

S-41-75

Good

Over: CLOUDS CREEK

13.1MI SE SALUDA, Saluda, SC

Built 1997 Load: 35.3 t ADT: 375

S-45-35

Good

Over: BR OF BLACK RIVER

8.0 MI N GREELEYVILLE, Williamsburg, SC

Built 1995 Load: 35.3 t ADT: 750

S-7-79

Good

Over: JARVIS CREEK

IN HILTON HEAD ISLAND, Beaufort, SC

Built 2017 Load: 35.6 t ADT: 6,300

SC 41

Good

Over: QUIMBY CREEK

14.2MI SE MONCKS CRN, Berkeley, SC

Built 2003 Load: 35.6 t ADT: 3,900

SC 174/HIGHWAY 174

Good

Over: RUSSELL CREEK

8 MI N OF EDISTO BEACH, Charleston, SC

Built 2020 Load: 35.6 t ADT: 4,900

S-13-59

Good

Over: DEEP CREEK

3 MI NW OF CHESTERFIELD, Chesterfield, SC

Built 2020 Load: 35.6 t ADT: 125

S-15-64

Good

Over: INDIAN CREEK

10 MI NW WALT'B, Colleton, SC

Built 2010 Load: 35.6 t ADT: 900

SC 230

Good

Over: SWEET WATER CREEK

3.2 MI NW OF AIKEN CO LN, Edgefield, SC

Built 1948 Load: 35.6 t ADT: 2,600

S-19-35

Good

Over: TURKEY CREEK

9.5MI NW EDGEFIELD, Edgefield, SC

Built 1990 Load: 35.6 t ADT: 800

I-77 BRIDGE RAMP

Good

Over: UNNAMED

5 MI SW OF RIDGEWAY, Fairfield, SC

Built 2006 Load: 35.6 t ADT: 350

S-21-730

Good

Over: LYNCHES LAKE

3 MI SE LAKE CITY, Florence, SC

Built 1996 Load: 35.6 t ADT: 300

S-23-451

Good

Over: PAYNE BRANCH

4.4 MI SW FOUNTAIN INN, Greenville, SC

Built 1988 Load: 35.6 t ADT: 900

US 701

Good

Over: BUG SWAMP

7.5MI S OF LORIS, Horry, SC

Built 2004 Load: 35.6 t ADT: 6,900

S-26-926

Good

Over: TRIB TO ICWW

1 MI W SOCASTEE, Horry, SC

Built 2011 Load: 35.6 t ADT: 700

SC 22 WBL

Good

Over: MA RR

6 MI N OF CONWAY, Horry, SC

Built 2000 Load: 35.6 t ADT: 6,450

SC 22 EBL

Good

Over: MA RR

6MI N OF CONWAY, Horry, SC

Built 2000 Load: 35.6 t ADT: 6,450

SC 160

Good

Over: BIG SUGAR CREEK

YORK CO LN, Lancaster, SC

Built 1999 Load: 35.6 t ADT: 15,200

S-34-31

Good

Over: OAK SWAMP

3MI N MULLINS, Marion, SC

Built 1995 Load: 35.6 t ADT: 1,000

S-34-46

Good

Over: REEDY CREEK

3MI N CENTENERY, Marion, SC

Built 1996 Load: 35.6 t ADT: 225

US 176

Good

Over: MUD CREEK

8.9MI NE OF NEWBERRY, Newberry, SC

Built 1949 Load: 35.6 t ADT: 1,200

C-39-394

Good

Over: GOLDEN CREEK

2.5MI W OF LIBERTY, Pickens, SC

Built 2010 Load: 35.6 t ADT: 200

S-40-434

Good

Over: EIGHT MILE CREEK

4 MI NE OF COLUMBIA, Richland, SC

Built 2013 Load: 35.6 t ADT: 2,000

S-40-61

Good

Over: NORTH BRANCH CANE CREEK

9 MI N COLUMBIA, Richland, SC

Built 1994 Load: 35.6 t ADT: 2,700

S-41-122

Good

Over: BIG CREEK

5.6MI NE SALUDA, Saluda, SC

Built 2012 Load: 35.6 t ADT: 125

C-42-570

Good

Over: FERGUSON CR

4.5 MI NW OF WOODRUFF, Spartanburg, SC

Built 1985 Load: 35.6 t ADT: 225

C-42-1953

Good

Over: CASEY CREEK

5.5MI SW CHESNEE, Spartanburg, SC

Built 1989 Load: 35.6 t ADT: 225

US 221 SB

Good

Over: BIG FERGUSON CREEK

2.5 MI N WOODRUFF, Spartanburg, SC

Built 1993 Load: 35.6 t ADT: 3,700

S-45-771

Good

Over: BR KINGSTREE SW CANAL

1.5 MI NW KINGSTREE, Williamsburg, SC

Built 1986 Load: 35.6 t ADT: 950

C-4-1104

Good

Over: ROCKY RIVER

4.7 MI NE ANDERSON, Anderson, SC

Built 2009 Load: 36.0 t ADT: 2,300

US 278

Good

Over: ROSEMARY CREEK

6.0 MI S WILLISTON, Barnwell, SC

Built 1952 Load: 36.0 t ADT: 3,500

L-10-1004

Good

Over: AIRPORT CANAL

JOHNS ISL (TRUCKLANDS), Charleston, SC

Built 1996 Load: 36.0 t ADT: 250

US 401

Good

Over: JEFFRIES CREEK

4 MI SW OF DARLINGTON, Darlington, SC

Built 2020 Load: 36.0 t ADT: 3,100

S-19-63

Good

Over: LOG CREEK

7.8 MI NW EDGEFIELD, Edgefield, SC

Built 1985 Load: 36.0 t ADT: 25

S-21-72

Good

Over: TRIB TO LYNCHES RIVER

3 MI N SCRANTON, Florence, SC

Built 1995 Load: 36.0 t ADT: 550

C-23-823

Good

Over: REEDY RIV

2.7 MI SW TRAVELERS REST, Greenville, SC

Built 2010 Load: 36.0 t ADT: 150

I-185 NBL

Good

Over: PROPOSED MAGNA RR

SOUTH OF GREENVILLE, Greenville, SC

Built 1999 Load: 36.0 t ADT: 3,950

SC 90

Good

Over: TILLY SWAMP

9.5MI E OF CONWAY, Horry, SC

Built 1975 Load: 36.0 t ADT: 15,100

S-26-130

Good

Over: TREDWELL SWAMP

1 MI N AYNOR, Horry, SC

Built 1995 Load: 36.0 t ADT: 1,400

S-28-15

Good

Over: LITTLE PINE TREE CREEK

TOWN OF CAMDEN, Kershaw, SC

Built 1978 Load: 36.0 t ADT: 3,800

S-37-174

Good

Over: TRIB TO CANE CREEK

1 MI N WALHALLA, Oconee, SC

Built 1974 Load: 36.0 t ADT: 475

S-37-133

Good

Over: CANE CREEK

2 MI E WALHALLA, Oconee, SC

Built 2013 Load: 36.0 t ADT: 1,650

S-40-1571

Good

Over: MYERS CREEK

1 MI W OF HOPKINS, Richland, SC

Built 2018 Load: 36.0 t ADT: 300

I-77 SB

Good

Over: TRIB TO GILLS CREEK

4 MI S COLUMBIA, Richland, SC

Built 1983 Load: 36.0 t ADT: 46,600

Showing 4,051-4,100 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.