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-34/PURRYSBURG RD

Good

Over: UNNAMED STREAM

4.8MI NW HARDEEVILLE, Jasper, SC

Built 2002 Load: 44.7 t ADT: 200

S-30-276

Good

Over: NED WESSON BRANCH

9.3 MI SE CLINTON, Laurens, SC

Built 1988 Load: 44.7 t ADT: 150

SC 2

Good

Over: MONKEY SPRINGS BRANCH

CITY OF CAYCE, Lexington, SC

Built 1998 Load: 44.7 t ADT: 5,000

S-36-41

Good

Over: CAMPING CREEK

10. MI SE OF NEWBERRY, Newberry, SC

Built 2020 Load: 44.7 t ADT: 1,000

S-36-272

Good

Over: SECOND CREEK

5 MI N OF POMARIA, Newberry, SC

Built 2021 Load: 44.7 t ADT: 150

S-38-74

Good

Over: N. EDISTO RIVER SWP

6MI NW ORANGEBURG, Orangeburg, SC

Built 2001 Load: 44.7 t ADT: 5,500

S-38-82

Good

Over: PROVIDENCE SWAMP

8 MI S ELLOREE, Orangeburg, SC

Built 1948 Load: 44.7 t ADT: 550

S-40-1995

Good

Over: TRIB GILLS CREEK

CITY OF COLUMBIA, Richland, SC

Built 2004 Load: 44.7 t ADT: 2,000

S-42-262

Good

Over: CSX RAILROAD

SPARTANBURG, Spartanburg, SC

Built 2001 Load: 44.7 t ADT: 1,700

C-42-724

Good

Over: SHOALLY CREEK

4.8 MI N OF SPARTANBURG, Spartanburg, SC

Built 1991 Load: 44.7 t ADT: 5,900

C-42-1913

Good

Over: DOUBLE BRANCH

4.9 MI S CHESNEE, Spartanburg, SC

Built 2021 Load: 44.7 t ADT: 225

C-42-1913

Good

Over: TRIB TO DOUBLE BRANCH

4.8 MI S CHESNEE, Spartanburg, SC

Built 2021 Load: 44.7 t ADT: 225

S-43-1322

Good

Over: GREEN SWAMP

6 MI NW OF SUMTER, Sumter, SC

Built 1990 Load: 44.7 t ADT: 175

SC 46/MAY RIVER RD

Good

Over: STONEY CREEK

5MI W OF BLUFFTON, Beaufort, SC

Built 2001 Load: 45.0 t ADT: 14,000

S-10-38

Good

Over: ADAMS RUN

9 MI W RAVENEL, Charleston, SC

Built 1999 Load: 45.0 t ADT: 700

S-15-166

Good

Over: TRIB TO INDIAN CREEK

9.8 MI NW WALT'B, Colleton, SC

Built 2008 Load: 45.0 t ADT: 250

SC 403

Good

Over: LYNCHES RIVER SWAMP

AT SARDIS, Florence, SC

Built 1990 Load: 45.0 t ADT: 2,100

S-21-646

Good

Over: SINGLETARY BRANCH

TOWN OF COWARD, Florence, SC

Built 1996 Load: 45.0 t ADT: 125

S-21-646

Good

Over: SMITH BRANCH

TOWN OF COWARD, Florence, SC

Built 1997 Load: 45.0 t ADT: 125

SC 22 EB

Good

Over: JONES BIG SWAMP #6

4.3MI N BRIARCLIFF ACRES, Horry, SC

Built 2000 Load: 45.0 t ADT: 11,950

SC 22 EB

Good

Over: JONES BIG SWAMP #8

4MI N BRIARCLIFF ACRES, Horry, SC

Built 2000 Load: 45.0 t ADT: 11,950

SC 3/HERITAGE RD

Good

Over: ELBO CREEK

1MI W OF GRAYS, Jasper, SC

Built 1948 Load: 45.0 t ADT: 1,000

S-27-108

Good

Over: CYPRESS CREEK

14.7MI N RIDGELAND, Jasper, SC

Built 2014 Load: 45.0 t ADT: 300

S-28-5

Good

Over: 25-MILE CREEK

TOWN OF LUGOFF, Kershaw, SC

Built 2000 Load: 45.0 t ADT: 4,600

C-39-603

Good

Over: TOWN CREEK

2.2MI N OF PICKENS, Pickens, SC

Built 2011 Load: 45.0 t ADT: 200

C-39-1658

Good

Over: TRIB TO 3 & 20 CRK

4.3MI SE OF LIBERTY, Pickens, SC

Built 2012 Load: 45.0 t ADT: 200

S-39-23

Good

Over: TWELVE MILE CREEK

3.0 MI NW PICKENS, Pickens, SC

Built 1995 Load: 45.0 t ADT: 1,550

C-39-179

Good

Over: UNKNOWN CREEK

4.9 MI SW OF EASLEY, Pickens, SC

Built 2007 Load: 45.0 t ADT: 200

S-40-221

Good

Over: SOUTH BR OF BEAR CR

6 MI NE OF BLYTHEWOOD, Richland, SC

Built 2020 Load: 45.0 t ADT: 750

S-43-673

Good

Over: GREEN SWAMP

5 MI NW OF SUMTER, Sumter, SC

Built 2007 Load: 45.0 t ADT: 5,400

S-1-133

Good

Over: PARKERS CREEK

ABBEVILLE CITY LIMITS, Abbeville, SC

Built 1996 Load: 45.4 t ADT: 1,200

SC 191

Good

Over: BRIDGE CREEK

1 MI NE OF GRANITVILLE, Aiken, SC

Built 2003 Load: 45.4 t ADT: 1,500

S-2-254

Good

Over: LITTLE HORSE CREEK

3 MI N BURNETTOWN SC, Aiken, SC

Built 1992 Load: 45.4 t ADT: 6,100

SC 641

Good

Over: SALKEHATCHIE RIVER SWAMP

0.25 MI E-ALLENDALE COLN, Bamberg, SC

Built 2001 Load: 45.4 t ADT: 850

S-6-57

Good

Over: SALKEHATCHIE RIVER SWAMP

8 MI E BARNWELL, Barnwell, SC

Built 2005 Load: 45.4 t ADT: 150

S-10-98

Good

Over: GUERIN CREEK

9MI NE OF MT PLEASANT, Charleston, SC

Built 2003 Load: 45.4 t ADT: 350

SC 105

Good

Over: IRENE CREEK

2.5 MI W OF GAFFNEY, Cherokee, SC

Built 2006 Load: 45.4 t ADT: 11,300

US 21

Good

Over: SANDY RUN CREEK

13 MI SW OF WALTERBORO, Colleton, SC

Built 2022 Load: 45.4 t ADT: 1,300

S-17-46

Good

Over: BUCK SWAMP

1MI S FLOYDALE, Dillon, SC

Built 1999 Load: 45.4 t ADT: 1,000

SC 20

Good

Over: SOUTHERN RR.

8 MI SW OF GREENVILLE, Greenville, SC

Built 1950 Load: 45.4 t ADT: 4,800

I-85

Good

Over: CPDR_& PRIVATE RD.

4.0 MI E OF GREENVILLE, Greenville, SC

Built 1960 Load: 45.4 t ADT: 124,000

S-23-92

Good

Over: BEAVERDAM CREEK

5 MI NW OF GREER, Greenville, SC

Built 2021 Load: 45.4 t ADT: 2,600

S-24-112

Good

Over: REEDY BRANCH

5.0MI N TROY, Greenwood, SC

Built 1995 Load: 45.4 t ADT: 275

S-25-29

Good

Over: SALKEHATCHIE RIVER

11MI NE HAMPTON, Hampton, SC

Built 1999 Load: 45.4 t ADT: 150

SC 22 EB

Good

Over: CROSS BRANCH

5 MI N CONWAY, Horry, SC

Built 2000 Load: 45.4 t ADT: 4,400

SC 22 WB

Good

Over: POPLAR SWAMP

5 MI N OF CONWAY, Horry, SC

Built 2000 Load: 45.4 t ADT: 4,400

SC 22 WB

Good

Over: MAPLE SWAMP #3

8 MI NE OF CONWAY, Horry, SC

Built 2000 Load: 45.4 t ADT: 6,450

S-29-764

Good

Over: HANGING ROCK CREEK

1.5MI S OF KERSHAW, Lancaster, SC

Built 2021 Load: 45.4 t ADT: 700

I-26

Good

Over: STOOP CREEK

6 MI NE OF COLUMBIA, Lexington, SC

Built 1960 Load: 45.4 t ADT: 143,800

SC 395

Good

Over: BR TO SCOTTS CREEK

NEWBERRY CITY LIMITS, Newberry, SC

Built 1975 Load: 45.4 t ADT: 3,700

Showing 4,701-4,750 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.