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-42-90

Good

Over: DUTCHMAN CREEK

9.5 MI SW PACOLET, Spartanburg, SC

Built 1995 Load: 45.4 t ADT: 800

S-43-290

Good

Over: BR OF ROCKY BLUFF CR

8 MI N OF SUMTER, Sumter, SC

Built 2016 Load: 45.4 t ADT: 225

US 76

Good

Over: SCAPE ORE CREEK (NO. 1)

7 MI NE OF SUMTER, Sumter, SC

Built 1999 Load: 45.4 t ADT: 1,600

S-3-56

Good

Over: COPE CREEK

7 MI NE FAIRFAX, Allendale, SC

Built 1997 Load: 45.7 t ADT: 125

S-8-44/DR EVANS RD

Good

Over: STREAM

3.5MI E MONCKS CORNER, Berkeley, SC

Built 2007 Load: 45.7 t ADT: 1,100

S-13-142

Good

Over: INDIAN CREEK

1.6 MI E CHESTERFIELD, Chesterfield, SC

Built 1997 Load: 45.7 t ADT: 175

S-24/MT CARMEL RD

Good

Over: WOLF CREEK

2.8 MI NW OF WALTERBORO, Colleton, SC

Built 1947 Load: 45.7 t ADT: 3,500

S-21-1134

Good

Over: BLACK CREEK

3.5 MI NORTH OF FLORENCE, Florence, SC

Built 1997 Load: 45.7 t ADT: 1,250

L-23-312

Good

Over: SOUTH TYGER RIVER

3.0 MI SE OF TIGERVILLE, Greenville, SC

Built 2018 Load: 45.7 t ADT: 125

S-29-285

Good

Over: CANE CREEK

7MI N LANCASTER, Lancaster, SC

Built 2016 Load: 45.7 t ADT: 350

S-31-71

Good

Over: TRIB BEAVER DAM CREEK

9 MI W OF BISHOPVILLE, Lee, SC

Built 2014 Load: 45.7 t ADT: 325

S-37-66

Good

Over: BEAVER DAM CREEK

10.2 MI S SENECA, Oconee, SC

Built 2002 Load: 45.7 t ADT: 500

C-37-1199

Good

Over: CHAUGA RIVER

7.0MI NW OF WALHALLA, Oconee, SC

Built 2015 Load: 45.7 t ADT: 200

S-43-81

Good

Over: ALLIGATOR BRANCH

5 MI E OF SUMTER, Sumter, SC

Built 2017 Load: 45.7 t ADT: 450

S-45-47

Good

Over: SANDY BAY BRANCH

6.0 MI NW CADES, Williamsburg, SC

Built 1994 Load: 45.7 t ADT: 400

C-2-754-75

Good

Over: JONES CREEK

9.8 MI NE OF ANDERSON, Anderson, SC

Built 2021 Load: 46.0 t ADT: 1,100

SC 70

Good

Over: LITTLE SALKEHATCHIE

4 MI W OF DENMARK, Bamberg, SC

Built 2019 Load: 46.0 t ADT: 2,900

S-7-77/SEASIDE RD

Good

Over: STATION CREEK

9.4 MI SE BEAUFORT, Beaufort, SC

Built 2003 Load: 46.0 t ADT: 400

US 17 ALT

Good

Over: DRAIN-CANADY BRANCH

4 MI NE OF MONCKS CORNER, Berkeley, SC

Built 1948 Load: 46.0 t ADT: 8,500

S-16-35

Good

Over: HIGH HILL CREEK

4MI N FLORENCE, Darlington, SC

Built 2000 Load: 46.0 t ADT: 3,000

S-16-573

Good

Over: GULLY SWAMP

4MI N LAMAR, Darlington, SC

Built 2006 Load: 46.0 t ADT: 375

S-26-653

Good

Over: BRUNSON SWAMP

10MI S GALIVANTS FERRY, Horry, SC

Built 2015 Load: 46.0 t ADT: 475

SC 22 EB

Good

Over: JONES BIG SWAMP #5

4.4MI N BRIARCLIFF ACRES, Horry, SC

Built 2000 Load: 46.0 t ADT: 11,950

S-28-140

Good

Over: GRANNIES QUARTER CR #2

7 MI S OF KERSHAW, Kershaw, SC

Built 2013 Load: 46.0 t ADT: 150

S-31-313

Good

Over: BEAVER DAM CK (2)

5 MI NW OF MANVILLE, Lee, SC

Built 2020 Load: 46.0 t ADT: 300

S-32-1287

Good

Over: SECOND CREEK

2 MI S OF SOUTH CONGAREE, Lexington, SC

Built 2015 Load: 46.0 t ADT: 600

S-40-1070

Good

Over: SMITH BRANCH

3 MI N OF COLUMBIA, Richland, SC

Built 1985 Load: 46.0 t ADT: 350

S-46-654

Good

Over: BURGIS CREEK

5 MI E OF ROCK HILL, York, SC

Built 2021 Load: 46.0 t ADT: 3,900

SC 71

Good

Over: LITTLE RIVER

6.0 MI N W OF ABBEVILLE, Abbeville, SC

Built 2002 Load: 46.3 t ADT: 600

S-11-243

Good

Over: BOWENS RIVER

4.0MI NW BLACKSBURG, Cherokee, SC

Built 2009 Load: 46.3 t ADT: 125

S-20-323

Good

Over: CEDAR CREEK

9.8 MI S WINNSBORO, Fairfield, SC

Built 2010 Load: 46.3 t ADT: 275

S-23-337

Good

Over: MOUNTAIN CREEK

6.5 MI NE GREENVILLE, Greenville, SC

Built 2007 Load: 46.3 t ADT: 2,800

C-23-342

Good

Over: TRIB TO BEAVERDAM CR

2.5 MI NE TRAVELERS REST, Greenville, SC

Built 2020 Load: 46.3 t ADT: 125

SC 336/TILLMAN RD

Good

Over: WAGON BRANCH

4 MI W OF RIDGELAND, Jasper, SC

Built 1996 Load: 46.3 t ADT: 2,800

US 278/INDPNDCBLVD

Good

Over: UNNAMED STREAM

4 MI NE OF HARDEEVILLE, Jasper, SC

Built 1986 Load: 46.3 t ADT: 31,500

S-28-385

Good

Over: TWENTYFIVE MILE CR OVF

4 MI W OF ELGIN, Kershaw, SC

Built 2012 Load: 46.3 t ADT: 400

S-30-82

Good

Over: BURRIS CREEK

7.7 MI SW LAURENS, Laurens, SC

Built 1989 Load: 46.3 t ADT: 200

SC 41

Good

Over: MAIDEN DOWN SWAMP

4 MI NW OF MULLINS, Marion, SC

Built 2017 Load: 46.3 t ADT: 3,000

US 1

Good

Over: HUSBANDS CREEK

1 MI N OF WALLACE, Marlboro, SC

Built 2019 Load: 46.3 t ADT: 3,400

C-39-1854

Good

Over: CRAYTON CREEK

5.6 MI E OF EASLEY, Pickens, SC

Built 2007 Load: 46.3 t ADT: 200

S-40-1307

Good

Over: TOMS CREEK

4 MI NW OF EASTOVER, Richland, SC

Built 2018 Load: 46.3 t ADT: 150

L-176

Good

Over: RR CSXT/RR NS

CITY OF COLUMBIA, Richland, SC

Built 2022 Load: 46.3 t ADT: 225

S-43-255

Good

Over: TEARCOAT BRANCH

8 MI SE OF SUMTER, Sumter, SC

Built 2014 Load: 46.3 t ADT: 125

S-43-59

Good

Over: THREE MILE BRANCH

9 MI SE MAYESVILLE, Sumter, SC

Built 2003 Load: 46.3 t ADT: 125

S-45-347

Good

Over: KINGSTREE SWAMP CANAL

7.0 MI NW CADES, Williamsburg, SC

Built 1994 Load: 46.3 t ADT: 475

S-46-720

Good

Over: BIG DUTCHMANS CREEK

CITY OF ROCK HILL, York, SC

Built 2010 Load: 46.3 t ADT: 650

S-1-113

Good

Over: CHICKSAW CREEK

1 MI NW OF DUE WEST, Abbeville, SC

Built 2023 Load: 46.7 t ADT: 200

S-4-158

Good

Over: MOUNTAIN CREEK

8.3 MI SW ANDERSON, Anderson, SC

Built 1990 Load: 46.7 t ADT: 700

US 52

Good

Over: WALKER SWAMP

12.8MI NE MONCKS CRN, Berkeley, SC

Built 1997 Load: 46.7 t ADT: 8,800

SC 430

Good

Over: LOG CREEK

2.6 MI N OF EDGEFIELD, Edgefield, SC

Built 1940 Load: 46.7 t ADT: 550

Showing 4,751-4,800 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.