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-46-1274

Fair

Over: MUD CREEK

2.8 MI NW HICKORY GROVE, York, SC

Built 1977 Load: 38.2 t ADT: 50

S-1-70

Fair

Over: BOWMANS CREEK

2.7MI W LOWNDESVILLE, Abbeville, SC

Built 1978 Load: 38.2 t ADT: 125

S-4-263

Fair

Over: ROCKY RIVER

2.5MI SE ANDERSON, Anderson, SC

Built 1978 Load: 38.2 t ADT: 2,700

S-30-730

Fair

Over: NORTH RABON CREEK

14.2MI NW OF LAURENS, Laurens, SC

Built 1985 Load: 38.2 t ADT: 400

I-77 NB

Fair

Over: LITTLE WATEREE CREEK

2.7 MI N OF S-41, Fairfield, SC

Built 1981 Load: 38.2 t ADT: 23,600

I-77 SB

Fair

Over: LITTLE WATEREE CREEK

2.7 MI N OF S-41, Fairfield, SC

Built 1981 Load: 38.2 t ADT: 23,600

SC 394

Fair

Over: NORTH EDISTO RIVER

2.0 MI W NORTH, Orangeburg, SC

Built 1984 Load: 38.2 t ADT: 1,700

S-24-104

Fair

Over: HORSEPEN CREEK

5.3MI NE CALLISON, Greenwood, SC

Built 1987 Load: 38.2 t ADT: 150

S-44-24

Fair

Over: CANE CREEK

10.5 MI SW UNION, Union, SC

Built 1988 Load: 38.2 t ADT: 225

S-5-33

Fair

Over: GENTS BRANCH

3.0 MI SW DENMARK, Bamberg, SC

Built 1989 Load: 38.2 t ADT: 450

RAMP OFF I-526 WB

Fair

Over: TRIB TO HOBCAW CREEK

NEAR MT. PLEASANT, Charleston, SC

Built 1990 Load: 38.2 t ADT: 10,800

S-21-55

Fair

Over: SPARROW SWAMP

5MI NW OF EFFINGHAM, Florence, SC

Built 1990 Load: 38.2 t ADT: 950

S-13-33

Fair

Over: INDIAN CREEK

3 MI W CHESTERFIELD, Chesterfield, SC

Built 1991 Load: 38.2 t ADT: 700

S-14-48

Fair

Over: DOCTOR BRANCH

11MI SE MANNING, Clarendon, SC

Built 1991 Load: 38.2 t ADT: 475

S-14-103

Fair

Over: DEEP CREEK

4MI E MANNING, Clarendon, SC

Built 1991 Load: 38.2 t ADT: 100

S-24-133

Fair

Over: CUFFEYTOWN CREEK

7.8MI SE GREENWOOD, Greenwood, SC

Built 1991 Load: 38.2 t ADT: 275

S-31-34

Fair

Over: BLACK RIVER

5 MI S OF BISHOPVILLE, Lee, SC

Built 1991 Load: 38.2 t ADT: 375

S-3-289

Fair

Over: LOG BRANCH

4MI NE ALLENDALE, Allendale, SC

Built 1996 Load: 38.2 t ADT: 150

S-21-105

Fair

Over: BIG SWAMP

1.5MI N HYMAN, Florence, SC

Built 1996 Load: 38.2 t ADT: 900

S-14-76

Fair

Over: BIG BRANCH

5MI SW SUMMERTON, Clarendon, SC

Built 1997 Load: 38.2 t ADT: 300

SC 20

Fair

Over: CALHOUN CREEK

2.6 MI N W OF ABBEVILLE, Abbeville, SC

Built 1930 Load: 38.6 t ADT: 4,300

SC 20

Fair

Over: HOGSKIN CREEK

12.8 MI N.W. OF ABBEVILLE, Abbeville, SC

Built 1930 Load: 38.6 t ADT: 1,850

SC 560

Fair

Over: GARRISON CREEK

14.8 MI SE OF NEWBERRY, Laurens, SC

Built 1948 Load: 38.6 t ADT: 650

SC 125 NBL

Fair

Over: HOLLOW CREEK

3 MI NW OF JACKSON, Aiken, SC

Built 1951 Load: 38.6 t ADT: 7,200

US 76/ US 378

Fair

Over: RR SCL ABANDONED

TOWN OF SUMTER, Sumter, SC

Built 1958 Load: 38.6 t ADT: 13,100

I-26

Fair

Over: GRAMLING CREEK

8 MI N OF ORANGEBURG, Orangeburg, SC

Built 1960 Load: 38.6 t ADT: 49,500

US 301

Fair

Over: LYNCHES RIVER

5MI NE OF OLANTA, Florence, SC

Built 1961 Load: 38.6 t ADT: 3,800

US 76 WBL

Fair

Over: I-85

6.2MI NW OF ANDERSON, Anderson, SC

Built 1962 Load: 38.6 t ADT: 14,700

C-4-108

Fair

Over: WILSON CR

8.9 MI SW OF ANDERSON, Anderson, SC

Built 1962 Load: 38.6 t ADT: 125

US 76 EB

Fair

Over: GREAT PEE DEE RV SWP

11.5MI E OF FLORENCE, Florence, SC

Built 1962 Load: 38.6 t ADT: 10,800

S-46-160

Fair

Over: US 21

6.5 MI SE ROCK HILL, York, SC

Built 1966 Load: 38.6 t ADT: 1,850

S-17-286

Fair

Over: I-95

3MI N DILLON, Dillon, SC

Built 1967 Load: 38.6 t ADT: 400

I-95 NB

Fair

Over: LITTLE PEE DEE RIVER

1.5MI NE OF DILLON, Dillon, SC

Built 1968 Load: 38.6 t ADT: 20,950

I-95 SB

Fair

Over: LITTLE PEE DEE RIVER

1.5MI NE OF DILLON, Dillon, SC

Built 1968 Load: 38.6 t ADT: 20,950

US 17 SB

Fair

Over: WALLACE RIVER

5 MI NE OF RAVENEL, Charleston, SC

Built 1971 Load: 38.6 t ADT: 16,450

S-20-62

Fair

Over: ROCKTON & RION RR

5.7MI S WINNSBORO, Fairfield, SC

Built 1971 Load: 38.6 t ADT: 325

US 52

Fair

Over: INDIAN CREEK

IN DARLINGTON, Darlington, SC

Built 1972 Load: 38.6 t ADT: 22,800

I-20 EB

Fair

Over: LYNCHES RIVER #2

6MI SE OF BISHOPVILLE, Lee, SC

Built 1972 Load: 38.6 t ADT: 14,450

I-20 WB

Fair

Over: LYNCHES RIVER #2

6MI SE OF BISHOPVILLE, Lee, SC

Built 1972 Load: 38.6 t ADT: 14,450

S-16-290

Fair

Over: I-20

3MI W DARLINGTON, Darlington, SC

Built 1974 Load: 38.6 t ADT: 275

SC 395

Fair

Over: BUSH RIVER

4.9 MI S OF NEWBERRY, Newberry, SC

Built 1974 Load: 38.6 t ADT: 1,100

SC 277 SB

Fair

Over: I-20

6 MI NE OF COLA, Richland, SC

Built 1974 Load: 38.6 t ADT: 27,150

S-21-12

Fair

Over: S-1545

CHURCH ST FLORENCE, Florence, SC

Built 1980 Load: 38.6 t ADT: 20,600

SC 403

Fair

Over: DEEP HOLE SWAMP

0.2MI W OF I-95, Florence, SC

Built 1982 Load: 38.6 t ADT: 2,100

S-23-566

Fair

Over: I-385

2.1 MI S MAULDIN, Greenville, SC

Built 1984 Load: 38.6 t ADT: 2,400

S-44-52

Fair

Over: SUGAR CREEK

5.6 MI W OF UNION, Union, SC

Built 1986 Load: 38.6 t ADT: 500

S-45-754

Fair

Over: SMITHS SWAMP

7.0 MI NW CADES, Williamsburg, SC

Built 1987 Load: 38.6 t ADT: 125

S-26-23

Fair

Over: LAKE SWAMP

10 MI SE GALIVANTS FERRY, Horry, SC

Built 1992 Load: 38.6 t ADT: 1,450

S-44-221

Fair

Over: MITCHELL CREEK

7.9 MI NW UNION, Union, SC

Built 1992 Load: 38.6 t ADT: 175

S-22-302

Fair

Over: TRIB-MIDWAY INLET

LITCHFIELD BEACH, Georgetown, SC

Built 1994 Load: 38.6 t ADT: 1,600

Showing 4,351-4,400 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.