State profile · Near median Poor share

South Carolina bridge safety

According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in South Carolina.

9,490
Public bridges
38.9%
Good condition
6.2%
Poor condition

South Carolina holds 9,490 public highway bridges (#26 of 52 by inventory) with a 6.17% Poor share (#25 of 52 by Poor share).

That is 6.2% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 28 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.

Inventory: FHWA NBI 2024 · last ETL August 2026

Total Bridges

9,490

Public highway bridges in South Carolina

Good Condition

38.9%

3,690 bridges rated 7-9

-11.1pp vs 50% benchmark

Poor Condition

6.2%

586 bridges whose lowest applicable component is rated 0-4

-1.3pp vs national avg 7.5%

South Carolina vs national bridge condition

South Carolina - Good condition share 38.9%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

South Carolina - Poor-condition share 20.6%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

South Carolina in the national condition pattern

Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.

Inventory size and Poor-condition share are different measures: South Carolina has 9,490 bridges and a 6.2% Poor-condition share in the 2024 NBI, rank #28 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold. Scatter plot of 54 data points. 0%10%20%30%40% 0k20k40k60k Public bridges in inventory (thousands) Poor-condition share (%) SC, Public bridges in inventory (thousands): 9.5k · Poor-condition share (%): 6.17%AL, Public bridges in inventory (thousands): 16.2k · Poor-condition share (%): 3.35%AK, Public bridges in inventory (thousands): 1.7k · Poor-condition share (%): 7.89%AZ, Public bridges in inventory (thousands): 8.6k · Poor-condition share (%): 1.15%AR, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 5.43%CA, Public bridges in inventory (thousands): 25.8k · Poor-condition share (%): 5.91%CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%DE, Public bridges in inventory (thousands): 0.9k · Poor-condition share (%): 1.26%DC, Public bridges in inventory (thousands): 0.3k · Poor-condition share (%): 1.95%FL, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 2.79%GA, Public bridges in inventory (thousands): 15.1k · Poor-condition share (%): 1.59%GU, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 12.77%HI, Public bridges in inventory (thousands): 1.2k · Poor-condition share (%): 6.53%ID, Public bridges in inventory (thousands): 4.6k · Poor-condition share (%): 4.9%IL, Public bridges in inventory (thousands): 26.9k · Poor-condition share (%): 9.35%IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%IA, Public bridges in inventory (thousands): 23.7k · Poor-condition share (%): 19.16%KS, Public bridges in inventory (thousands): 24.9k · Poor-condition share (%): 5.26%KY, Public bridges in inventory (thousands): 14.5k · Poor-condition share (%): 7.37%LA, Public bridges in inventory (thousands): 12.7k · Poor-condition share (%): 11.48%ME, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 15.41%MD, Public bridges in inventory (thousands): 5.5k · Poor-condition share (%): 4.56%MA, Public bridges in inventory (thousands): 5.3k · Poor-condition share (%): 8.88%MI, Public bridges in inventory (thousands): 11.4k · Poor-condition share (%): 11.27%MN, Public bridges in inventory (thousands): 13.5k · Poor-condition share (%): 4.44%MS, Public bridges in inventory (thousands): 16.7k · Poor-condition share (%): 6.03%MO, Public bridges in inventory (thousands): 24.6k · Poor-condition share (%): 8.95%MT, Public bridges in inventory (thousands): 5.2k · Poor-condition share (%): 6.81%NE, Public bridges in inventory (thousands): 15.4k · Poor-condition share (%): 7.9%NV, Public bridges in inventory (thousands): 2.1k · Poor-condition share (%): 1.14%NH, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 7.51%NJ, Public bridges in inventory (thousands): 6.8k · Poor-condition share (%): 6.01%NM, Public bridges in inventory (thousands): 4k · Poor-condition share (%): 4.51%NY, Public bridges in inventory (thousands): 17.6k · Poor-condition share (%): 9.43%NC, Public bridges in inventory (thousands): 19.2k · Poor-condition share (%): 6.76%ND, Public bridges in inventory (thousands): 4.3k · Poor-condition share (%): 10.98%OH, Public bridges in inventory (thousands): 26.7k · Poor-condition share (%): 4.74%OK, Public bridges in inventory (thousands): 22.9k · Poor-condition share (%): 7.7%OR, Public bridges in inventory (thousands): 8.3k · Poor-condition share (%): 4.61%PA, Public bridges in inventory (thousands): 23.3k · Poor-condition share (%): 12.58%PR, Public bridges in inventory (thousands): 2.4k · Poor-condition share (%): 13.92%RI, Public bridges in inventory (thousands): 0.8k · Poor-condition share (%): 15.2%SD, Public bridges in inventory (thousands): 5.9k · Poor-condition share (%): 16.36%TN, Public bridges in inventory (thousands): 20.4k · Poor-condition share (%): 4.41%TX, Public bridges in inventory (thousands): 56.7k · Poor-condition share (%): 1.23%UT, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 2.91%VT, Public bridges in inventory (thousands): 2.9k · Poor-condition share (%): 2.9%VI, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 29.17%VA, Public bridges in inventory (thousands): 14.1k · Poor-condition share (%): 3.39%WA, Public bridges in inventory (thousands): 8.5k · Poor-condition share (%): 5.45%WV, Public bridges in inventory (thousands): 7.3k · Poor-condition share (%): 18.64%WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%
Inventory size and Poor-condition share are different measures: South Carolina has 9,490 bridges and a 6.2% Poor-condition share in the 2024 NBI, rank #28 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold.

South Carolina vs all states by public bridge inventory

Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges

9,490 26th of 54 higher than 28 of 54 states

States and territories, banded by public bridge inventory size

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · 2024

Read the rank neighborhood for South Carolina

The highlighted point is South Carolina: 9,490 bridges and 6.17% in Poor condition, rank #28 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below South Carolina on that same Poor-share ordering:

  • New Jersey: 6,827 bridges · 6.01% Poor
  • Mississippi: 16,739 bridges · 6.03% Poor
  • South Carolina: 9,490 bridges · 6.17% Poor
  • Wyoming: 3,136 bridges · 6.51% Poor
  • Wisconsin: 14,446 bridges · 6.52% Poor

The full national sortable table lives on the rankings page.

Material families in South Carolina

Exclusive FHWA material families across all 9,490 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains South Carolina’s inventory

State agency holds 89.2% of the 9,490 public highway bridges filed under South Carolina in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When South Carolina’s bridges were built

Pre-1950 construction accounts for 13.0% of the 9,490 bridges with a recorded original year in South Carolina. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

South Carolina38.9%54.9%GoodFairPoor
Bridge inventory deck-condition mix - South Carolina (FHWA NBI)

Counties (46)

Abbeville 163 Aiken 198 Allendale 69 Anderson 463 Bamberg 80 Barnwell 76 Beaufort 72 Berkeley 216 Calhoun 64 Charleston 336 Cherokee 199 Chester 190 Chesterfield 199 Clarendon 170 Colleton 231 Darlington 174 Dillon 128 Dorchester 198 Edgefield 124 Fairfield 139 Florence 277 Georgetown 113 Greenville 635 Greenwood 144 Hampton 113 Horry 479 Jasper 129 Kershaw 174 Lancaster 181 Laurens 259 Lee 91 Lexington 229 Marion 112 Marlboro 96 McCormick 68 Newberry 218 Oconee 215 Orangeburg 273 Pickens 291 Richland 361 Saluda 125 Spartanburg 638 Sumter 166 Union 131 Williamsburg 195 York 288

South Carolina vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below South Carolina on the same metric.

NJ

New Jersey

6.01% top marginal rate
Structure
Progressive
Burden @ $100K
$6,827

MS

Mississippi

6.03% top marginal rate
Structure
Progressive
Burden @ $100K
$16,739
Selected

SC

South Carolina

6.17% top marginal rate
Structure
Progressive
Burden @ $100K
$9,490

WY

Wyoming

6.51% top marginal rate
Structure
Progressive
Burden @ $100K
$3,136

WI

Wisconsin

6.52% top marginal rate
Structure
Progressive
Burden @ $100K
$14,446

Bridges Needing Most Attention in South Carolina

Six lowest-condition bridges in South Carolina, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

C-42-1024

Poor

Over: PACOLET RIVER

1.0 MI NW OF CAMPOBELLO, Spartanburg, SC

Built 1932 Load: 0.0 t ADT: 275

C-4-3791

Poor

Over: CSX RAILROAD

1.0 MI S WILLIAMSTON, Anderson, SC

Built 1950 Load: 0.0 t ADT: 175

C-28-250

Poor

Over: LITTLE FLAT ROCK CK

13MI W OF CAMDEN, Kershaw, SC

Built 1950 Load: 0.0 t ADT: 200

S-41-164

Poor

Over: BR OF LITTLE SALUDA RV

5.5 MI NE OF SALUDA, Saluda, SC

Built 1952 Load: 0.0 t ADT: 25

C-11-92

Poor

Over: GILKEY CREEK

6.7 MI SE GAFFNEY, Cherokee, SC

Built 1954 Load: 0.0 t ADT: 125

C-11-331

Poor

Over: ABINGTON CREEK

8.8 MI SE GAFFNEY, Cherokee, SC

Built 1954 Load: 0.0 t ADT: 275

All Bridges in South Carolina

S-32-235

Good

Over: HOLLOW CREEK

4 MI N OF LEESVILLE, Lexington, SC

Built 2014 Load: 37.3 t ADT: 150

I-77 SB

Good

Over: GILLS CREEK

4 MI SE OF COLUMBIA, Richland, SC

Built 1982 Load: 37.3 t ADT: 41,350

I-77 NB

Good

Over: CONGAREE SWAMP

5 MI S OF COLUMBIA, Richland, SC

Built 1984 Load: 37.3 t ADT: 46,600

I-77 SB

Good

Over: CONGAREE SWAMP

5 MI S OF COLUMBIA, Richland, SC

Built 1984 Load: 37.3 t ADT: 46,600

S-21-58

Good

Over: BR OF LYNCHES LAKE

8.5 MI W JOHNSONVILLE, Florence, SC

Built 1987 Load: 37.3 t ADT: 750

S-15-88/SEE SEE RD

Good

Over: ASHEPOO RIVER

5 MI SW WALTERBORO, Colleton, SC

Built 1988 Load: 37.3 t ADT: 125

C-4-3694

Good

Over: HEN COOP CR

8.7 MI SE OF ANDERSON, Anderson, SC

Built 1990 Load: 37.3 t ADT: 125

S-2-29

Good

Over: JOYCE BRANCH

2.5 MI NE OF SC 118, Aiken, SC

Built 1991 Load: 37.3 t ADT: 1,050

C-26-510

Good

Over: EVANS BRANCH

14 MI NW OF CONWAY, Horry, SC

Built 1993 Load: 37.3 t ADT: 250

I-85 SB

Good

Over: LAWSON FORK CREEK

2.4 MI NW OF SPARTANBURG, Spartanburg, SC

Built 1993 Load: 37.3 t ADT: 41,250

SC 41

Good

Over: BUCK SWAMP

1.5 MI S FORK, Dillon, SC

Built 1995 Load: 37.3 t ADT: 2,300

I-385 RAMP

Good

Over: US 221 AND CSX RR

3.8 MI N OF LAURENS, Laurens, SC

Built 1995 Load: 37.3 t ADT: 2,400

SC 381

Good

Over: THREE CREEKS

1 MIE OF BLENHEIM, Marlboro, SC

Built 1995 Load: 37.3 t ADT: 750

S-39-37

Good

Over: NS RR

7.0 MI E EASLEY, Pickens, SC

Built 1995 Load: 37.3 t ADT: 2,900

SC 327

Good

Over: WILLOW CREEK

2 MI E EVERGREEN, Florence, SC

Built 1996 Load: 37.3 t ADT: 900

S-6-84

Good

Over: LITTLE SALKEHATCHIE CK

3.2 MI SE BLACKVILLE, Barnwell, SC

Built 1997 Load: 37.3 t ADT: 50

S-20-222

Good

Over: BR OF BEAVER DAM CR

4MI NE WINNSBORO, Fairfield, SC

Built 1999 Load: 37.3 t ADT: 350

C-10-1001/HUT RD

Good

Over: HUT CREEK

ON JOHNS ISLAND (ABRAMS), Charleston, SC

Built 2001 Load: 37.3 t ADT: 790

I-185

Good

Over: SC 417

SOUTH OF GREENVILLE, Greenville, SC

Built 2000 Load: 37.3 t ADT: 3,900

US 17

Good

Over: BROADWAY CANAL

IN MYRTLE BEACH, Horry, SC

Built 1992 Load: 37.3 t ADT: 22,250

SC 22 EB

Good

Over: WACCAMAW RIVER

11.5MI E OF CONWAY, Horry, SC

Built 2000 Load: 37.3 t ADT: 10,200

US 501 SB

Good

Over: GEORGE BISHOP RD

5 N. OF MYRTLE BEACH, Horry, SC

Built 2004 Load: 37.3 t ADT: 30,350

I-20 RAMPTOI-520S

Good

Over: I-520 N RAMP TO I-20W

NORTH AUGUSTA, Aiken, SC

Built 2008 Load: 37.3 t ADT: 1,950

SC 31 SB

Good

Over: SC 22

7 MI N OF MYRTLE BEACH, Horry, SC

Built 2002 Load: 37.3 t ADT: 21,400

SC 174/HIGHWAY 174

Good

Over: STORE CREEK

4 MI N OF EDISTO BEACH, Charleston, SC

Built 2018 Load: 37.3 t ADT: 4,900

L-594

Good

Over: TRIB TO REEDY RIVER

8 MI SW OF FOUNTAIN INN, Greenville, SC

Built 2021 Load: 37.3 t ADT: 125

US 276

Good

Over: RICHLAND CREEK-GREENVILL

CITY OF GREENVILLE, Greenville, SC

Built 1935 Load: 37.6 t ADT: 28,800

US 17 NB

Good

Over: WALLACE RIVER

5 MI NE OF RAVENEL, Charleston, SC

Built 2008 Load: 37.6 t ADT: 16,450

S-29-13

Good

Over: LEAR CREEK

2.5 MI W KERSHAW, Lancaster, SC

Built 1947 Load: 37.6 t ADT: 1,200

S-15-46/RED OAK RD

Good

Over: CRAVEN BRANCH

3.8 MI NE COTTAGEVILLE, Colleton, SC

Built 2014 Load: 37.6 t ADT: 550

S-40-1352

Good

Over: BEASLEYS CREEK

10 MI N OF COLUMBIA, Richland, SC

Built 2017 Load: 37.6 t ADT: 1,400

S-32-28

Good

Over: FOURTEEN MILE CREEK

3 MI NE OF LEXINGTON, Lexington, SC

Built 2014 Load: 37.6 t ADT: 8,600

SC 171/FOLLY RD

Good

Over: FOLLY RIVER

ON FOLLY ISLAND, Charleston, SC

Built 2016 Load: 37.6 t ADT: 17,600

SC 171/FOLLY RD

Good

Over: LONG ISLAND RIVER

1 1/2 MI N OF FOLLY BEACH, Charleston, SC

Built 2016 Load: 37.6 t ADT: 17,600

S-9-167

Good

Over: SPRING CREEK

4 MI E CAMERON, Calhoun, SC

Built 2005 Load: 37.6 t ADT: 50

S-25-27

Good

Over: RABBIT BRANCH

7MI S VARNVILLE, Hampton, SC

Built 2002 Load: 37.6 t ADT: 500

SC 14

Good

Over: BELUE CREEK

13.5 MI N OF GREER, Greenville, SC

Built 1954 Load: 37.6 t ADT: 1,650

C-23-1262

Good

Over: LONG BRANCH

2.0 MI W GREENVILLE, Greenville, SC

Built 2003 Load: 37.6 t ADT: 150

S-34/PURRYSBURG RD

Good

Over: UNNAMED STREAM

10.8MI SW RIDGELAND, Jasper, SC

Built 2002 Load: 37.6 t ADT: 200

I-20 EB

Good

Over: S-40-63

10MI NE OF COLA, Richland, SC

Built 2013 Load: 37.6 t ADT: 25,200

SC 165

Good

Over: ASHLEY RIVER OVERFLOW

4.8 MI SW SUMRVL, Dorchester, SC

Built 2016 Load: 37.6 t ADT: 27,300

S-31-31

Good

Over: BEAVERDAM CREEK

6 MI SW OF BISHOPVILLE, Lee, SC

Built 2017 Load: 37.6 t ADT: 1,000

I-77 NB

Good

Over: TRIB TO GILLS CREEK

4 MI S COLUMBIA, Richland, SC

Built 1983 Load: 37.6 t ADT: 46,600

S-24-96

Good

Over: TURKEY CREEK

5.1MI SE WARE SHOALS, Greenwood, SC

Built 1984 Load: 37.6 t ADT: 175

S-36-361

Good

Over: BEAVER DAM CREEK

5.9 MI SW NEWBERRY, Newberry, SC

Built 1985 Load: 37.6 t ADT: 125

S-36-48

Good

Over: SHARPS BRANCH

15.1 MI SW NEWBERRY, Newberry, SC

Built 1987 Load: 37.6 t ADT: 175

S-32-774

Good

Over: LITTLE BLACK CREEK

6 MI S OF GILBERT, Lexington, SC

Built 1991 Load: 37.6 t ADT: 1,850

S-5-8

Good

Over: THREE MILE CREEK

5MI SW EHRHARDT, Bamberg, SC

Built 1992 Load: 37.6 t ADT: 75

S-21-58

Good

Over: BROWNS SWAMP APPR.

8 MI SE LAKE CITY, Florence, SC

Built 1994 Load: 37.6 t ADT: 750

S-21-58

Good

Over: BROWNS SWAMP APPR.

8 MI SE LAKE CITY, Florence, SC

Built 1994 Load: 37.6 t ADT: 750

Showing 7,151-7,200 of 9,490 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

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.

What to do with this

Use South Carolina's inventory picture to drill to a county or a specific span.

  • Browse counties in South Carolina and open the highest-Poor shares first. County list
  • See where this state sits among peers on Poor-condition share. State rankings
  • Compare this state with another jurisdiction on the same measures. State compare

NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. South Carolina Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.