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-8-16

Good

Over: I-26

13 MI W SW OF MONCKS CRN, Berkeley, SC

Built 2022 Load: 38.6 t ADT: 11,900

S-45-381

Good

Over: BR OF SOCCEE SWAMP

4 MI NE OF HEMINGWAY, Williamsburg, SC

Built 2022 Load: 38.6 t ADT: 175

L-1106/PALCOMMPKWY

Good

Over: MCCUNE BRANCH

NORTH CHARLESTON, Charleston, SC

Built 2011 Load: 38.6 t ADT: 12,100

C-23-651

Good

Over: PAYNE BRANCH

3 MI SW OF FOUNTAIN INN, Greenville, SC

Built 2021 Load: 38.6 t ADT: 150

L-1061

Good

Over: TRIB TO PAYNE BRANCH

4.2 MI SW OF FOUNTAIN INN, Greenville, SC

Built 2021 Load: 38.6 t ADT: 125

S-12-58

Good

Over: LITTLE ROCKY CREEK

11 MI SE OF CHESTER, Chester, SC

Built 2023 Load: 38.6 t ADT: 175

S-35-36

Good

Over: MCLAURIN MILL CREEK

6 MI NW BENNETTSVILLE, Marlboro, SC

Built 2008 Load: 38.9 t ADT: 175

S-35-63

Good

Over: CROOKED CREEK

4 MI N BENNETTSVILLE, Marlboro, SC

Built 2008 Load: 38.9 t ADT: 350

S-8-98/CAINHOY RD

Good

Over: FRENCH QUARTER CK

5.5 MI SW HUGER, Berkeley, SC

Built 2007 Load: 38.9 t ADT: 1,600

S-41-43

Good

Over: BIG CREEK

4.8MI NE SALUDA, Saluda, SC

Built 2012 Load: 38.9 t ADT: 375

SC 105

Good

Over: I-85

3.0 MI NW GAFFNEY, Cherokee, SC

Built 2006 Load: 38.9 t ADT: 11,300

S-19-143

Good

Over: HORN CREEK

12.5MI SW EDGEFIELD, Edgefield, SC

Built 2015 Load: 38.9 t ADT: 125

S-31-108

Good

Over: SCAPE ORE SWAMP NO.1

8 MI S OF BISHOPVILLE, Lee, SC

Built 2012 Load: 38.9 t ADT: 275

SC 291

Good

Over: I-385

2.7 MI E. GREENVILLE, Greenville, SC

Built 2002 Load: 38.9 t ADT: 47,900

S-17-56

Good

Over: TRIB OF BEAR SWAMP

1MI E LAKE VIEW, Dillon, SC

Built 2004 Load: 38.9 t ADT: 175

S-10-1846

Good

Over: OYSTER HOUSE CREEK

3 MI S RAVENEL, Charleston, SC

Built 2006 Load: 38.9 t ADT: 275

S-40-59

Good

Over: I-77

0.5MI W BLYTHEWOOD, Richland, SC

Built 1978 Load: 38.9 t ADT: 11,600

S-11-223

Good

Over: KINGS CREEK

4.5MI SE BLACKSBURG, Cherokee, SC

Built 1979 Load: 38.9 t ADT: 750

S-45-754

Good

Over: BR- KINGSTREE CANAL

6.0 MI NW CADES, Williamsburg, SC

Built 1987 Load: 38.9 t ADT: 125

S-31-99

Good

Over: BACK SWAMP

3 MI E LYNCHBURG, Lee, SC

Built 1988 Load: 38.9 t ADT: 175

S-28-36

Good

Over: TWNEY FIVE MILE CREEK

2 MI NW LUGOFF, Kershaw, SC

Built 2016 Load: 38.9 t ADT: 2,000

C-23-343

Good

Over: BEAVERDAM CREEK

5.6 MI NE TRAVELERS REST, Greenville, SC

Built 2019 Load: 38.9 t ADT: 125

SC 912

Good

Over: NAKED CREEK

5.0 MI W OF BENNETTSVILLE, Marlboro, SC

Built 1994 Load: 38.9 t ADT: 1,700

S-14-213

Good

Over: PENN BRANCH

6MI N MANNING, Clarendon, SC

Built 1995 Load: 38.9 t ADT: 125

S-20-46

Good

Over: SWANEYS CREEK

13MI SE WINNSBORO, Fairfield, SC

Built 1995 Load: 38.9 t ADT: 225

S-29-82

Good

Over: STREAM

3.5MI N LANCASTER, Lancaster, SC

Built 1995 Load: 38.9 t ADT: 1,150

S-30-267

Good

Over: WARRIOR CREEK

7.0 MI N LAURENS, Laurens, SC

Built 1995 Load: 38.9 t ADT: 125

S-11-115

Good

Over: MACEDONIA CREEK

6.1MI NW GAFFNEY, Cherokee, SC

Built 1999 Load: 38.9 t ADT: 100

S-13-905

Good

Over: DEEP CREEK

1.0 MI SE MT CROGHAN, Chesterfield, SC

Built 1999 Load: 38.9 t ADT: 125

I- 185 RMP

Good

Over: I- 385

SOUTH OF GREENVILLE, Greenville, SC

Built 2000 Load: 38.9 t ADT: 1,350

SC 31 NBL

Good

Over: SC 90

22.55 MI NE OF SOCASTEE, Horry, SC

Built 2002 Load: 38.9 t ADT: 16,650

RAMP OFF I-77 NB

Good

Over: TRIB OF BIG CEDAR CREEK

2.5 MI SW OF RIDGEWAY, Fairfield, SC

Built 2006 Load: 38.9 t ADT: 1,250

SC 31 NBL RAMP

Good

Over: SC 31 & SC 22

6 MI N OF MYRTLE BEACH, Horry, SC

Built 2002 Load: 38.9 t ADT: 6,342

SC 165/HIGHWAY 165

Good

Over: CAW CAW SWAMP-NO 3

10 MI W OF CHARLESTON, Charleston, SC

Built 2019 Load: 38.9 t ADT: 4,600

I-185 SB

Good

Over: US 276 S-566 & CPDR RR

9 MI SE OF GREENVILLE, Greenville, SC

Built 2000 Load: 38.9 t ADT: 4,350

SC 274

Good

Over: MILL CREEK

9.4 MI N OF NEWPORT, York, SC

Built 2022 Load: 38.9 t ADT: 21,500

S-36-272

Good

Over: TRIB TO SECOND CREEK

5 MI N OF POMARIA, Newberry, SC

Built 2021 Load: 38.9 t ADT: 150

US 15

Good

Over: SCAPE ORE CREEK

6 MI SW OF BISHOPVILLE, Lee, SC

Built 2009 Load: 39.2 t ADT: 7,500

SC 6

Good

Over: FOURTEEN MILE CREEK

2MI N OF LEX, Lexington, SC

Built 2006 Load: 39.2 t ADT: 17,700

SC 63

Good

Over: WHIPPY SWAMP

6.3 MI NE OF VARNVILLE, Hampton, SC

Built 2002 Load: 39.2 t ADT: 2,900

US 78

Good

Over: EDISTO RIVER SWAMP

3MI SW OF BRANCHVILLE, Orangeburg, SC

Built 2011 Load: 39.2 t ADT: 1,950

SC 63

Good

Over: SALKEHATCHIE RIVER SWAMP

6.5 MI NE OF VARNVILLE, Hampton, SC

Built 2002 Load: 39.2 t ADT: 2,900

US 17 ALT

Good

Over: POPLAR BRANCH

8.6MI SW MONCKS CRN, Berkeley, SC

Built 1936 Load: 39.2 t ADT: 22,200

US 25

Good

Over: LOG CREEK

6.0 MI NW OF EDGEFIELD, Edgefield, SC

Built 2016 Load: 39.2 t ADT: 1,750

SC 769

Good

Over: CEDAR CREEK

1 MI W OF CONGAREE, Richland, SC

Built 2016 Load: 39.2 t ADT: 2,200

US 76

Good

Over: LUMBER RIVER

IN NICHOLS, Marion, SC

Built 1947 Load: 39.2 t ADT: 3,300

SC 602

Good

Over: SIX MILE CREEK

2 MI W OF CAYCE, Lexington, SC

Built 1948 Load: 39.2 t ADT: 12,900

US 378 WB

Good

Over: BLACK RIVER

10 MI E OF SUMTER, Sumter, SC

Built 2006 Load: 39.2 t ADT: 5,750

S-14-48

Good

Over: DEEP CREEK

8MI SE MANNING, Clarendon, SC

Built 1949 Load: 39.2 t ADT: 375

SC 332

Good

Over: ROCKY SWAMP CREEK

8MI E OF SPRINGFIELD, Orangeburg, SC

Built 2002 Load: 39.2 t ADT: 750

Showing 7,351-7,400 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.