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%.

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.

All Bridges in South Carolina

S-22-52

Fair

Over: SWAMP RUN CREEK

5MI N CAMPFIELD, Georgetown, SC

Built 1971 Load: 15.9 t ADT: 200

S-22-52

Fair

Over: TRIB-PEE DEE RV

10MI NE GEORGETOWN, Georgetown, SC

Built 1971 Load: 15.9 t ADT: 200

C-26-1432

Fair

Over: PRINCE MILL SWAMP

8.0 MI NE OF AYNOR, Horry, SC

Built 2001 Load: 15.9 t ADT: 250

S-26-788

Fair

Over: MAPLE SWAMP

7MI N CONWAY, Horry, SC

Built 1969 Load: 15.9 t ADT: 125

S-26-792

Fair

Over: LONG BRANCH

8MI NW LORIS, Horry, SC

Built 1970 Load: 15.9 t ADT: 25

S-29-96

Fair

Over: TRIB TO LYNCHES CREEK

3.5MI E HEATH SPRINGS, Lancaster, SC

Built 1940 Load: 15.9 t ADT: 125

S-29-521

Fair

Over: BR OF TURKEY CR

3.6 MI SE LANCASTER, Lancaster, SC

Built 1971 Load: 15.9 t ADT: 2,100

S-40-57

Fair

Over: HARMON CREEK

10MI NW COLUMBIA, Richland, SC

Built 1958 Load: 15.9 t ADT: 425

S-44-241

Fair

Over: JUMPING RUN CREEK

2.3 MI NW JONESVILLE, Union, SC

Built 1954 Load: 15.9 t ADT: 75

S-45-223

Fair

Over: JOHNSON SWAMP

1.0 MI SW ANDREWS, Williamsburg, SC

Built 1960 Load: 15.9 t ADT: 375

S-45-383

Fair

Over: BIRCH CREEK

7.0 MI N ANDREWS, Williamsburg, SC

Built 1966 Load: 15.9 t ADT: 200

S-45-438

Fair

Over: BR OF BOGGY SWAMP

3.0 MI E KINGSTREE, Williamsburg, SC

Built 1966 Load: 15.9 t ADT: 550

S-45-116

Fair

Over: MC/NAMEE SWAMP

2.0 MI SE CADES, Williamsburg, SC

Built 1968 Load: 15.9 t ADT: 550

SC 901

Fair

Over: FISHING CREEK

TOWN OF LANDO, Chester, SC

Built 1937 Load: 16.2 t ADT: 2,100

S-13-157

Fair

Over: THOMPSON CREEK

4.8 MI NE PAGELAND, Chesterfield, SC

Built 1958 Load: 16.2 t ADT: 600

S-13-490

Fair

Over: ROCKY CREEK

3.7 MI SE JEFFERSON, Chesterfield, SC

Built 1963 Load: 16.2 t ADT: 350

S-13-134

Fair

Over: HILL CREEK

2 MI N PAGELAND, Chesterfield, SC

Built 1964 Load: 16.2 t ADT: 1,600

S-13-487

Fair

Over: BRANCH OF HILL CREEK

5 MI W PAGELAND, Chesterfield, SC

Built 1964 Load: 16.2 t ADT: 75

S-13-43

Fair

Over: FORK SWAMP CREEK

2 MI N JEFFERSON, Chesterfield, SC

Built 1965 Load: 16.2 t ADT: 550

S-13-410

Fair

Over: BIG BLACK CREEK

6 MI NE JEFFERSON, Chesterfield, SC

Built 1969 Load: 16.2 t ADT: 175

S-13-49

Fair

Over: BROCKS MILL STREAM

6.3 MI NE CHESTERFIELD, Chesterfield, SC

Built 1970 Load: 16.2 t ADT: 325

S-13-716

Fair

Over: MONT PRONG CREEK

8.4MI S CHESTERFIELD, Chesterfield, SC

Built 1974 Load: 16.2 t ADT: 100

S-16-495

Fair

Over: HIGH HILL SWAMP

12MI N FLORENCE, Darlington, SC

Built 1964 Load: 16.2 t ADT: 1,150

S-16-589

Fair

Over: INDIAN CREEK

4MI W DARLINGTON, Darlington, SC

Built 1965 Load: 16.2 t ADT: 225

S-17-58

Fair

Over: GADDYS MILL

4MI NW LAKE VIEW, Dillon, SC

Built 1974 Load: 16.2 t ADT: 75

US 301

Fair

Over: DOUGLAS SWAMP

1MI SW OF OLANTA, Florence, SC

Built 1924 Load: 16.2 t ADT: 2,600

S-21-13

Fair

Over: MIDDLE BRANCH

7 MI E FLORENCE, Florence, SC

Built 1961 Load: 16.2 t ADT: 2,000

S-21-359

Fair

Over: DEEP CREEK

1.5MI S SALEM, Florence, SC

Built 1961 Load: 16.2 t ADT: 600

S-21-591

Fair

Over: BR-MUDDY CK

1 MI S JOHNSONVILLE, Florence, SC

Built 1961 Load: 16.2 t ADT: 500

S-21-13

Fair

Over: POLK SWAMP

7 MI E FLORENCE, Florence, SC

Built 1970 Load: 16.2 t ADT: 3,000

S-21-86

Fair

Over: BIG SWAMP

3.5 SE PAMPLICO, Florence, SC

Built 1970 Load: 16.2 t ADT: 1,300

S-21-794

Fair

Over: LANE BRANCH

TOWN OF COWARD, Florence, SC

Built 1973 Load: 16.2 t ADT: 600

US 17 SB

Fair

Over: SOUTH SANTEE RIVER

15 MI S GEORGETOWN, Georgetown, SC

Built 1950 Load: 16.2 t ADT: 4,650

S-22-24

Fair

Over: POLE SWAMP

7MI SW GEORGETOWN, Georgetown, SC

Built 1960 Load: 16.2 t ADT: 1,000

S-22-295

Fair

Over: WHITE OAK CREEK

5MI S GEORGETOWN, Georgetown, SC

Built 1960 Load: 16.2 t ADT: 900

S-22-525

Fair

Over: BROWNS BRANCH

16MI NE ANDREWS, Georgetown, SC

Built 1968 Load: 16.2 t ADT: 125

S-22-31

Fair

Over: BONNY CLABBER CREEK

7MI SW GEORGETOWN, Georgetown, SC

Built 1971 Load: 16.2 t ADT: 1,500

S-23-333

Fair

Over: GILDER CREEK

2.4 MI E MAULDIN, Greenville, SC

Built 1962 Load: 16.2 t ADT: 5,100

S-23-94

Fair

Over: SUBER BRANCH

3MI SW GREER, Greenville, SC

Built 1963 Load: 16.2 t ADT: 8,600

S-23-167

Fair

Over: LITTLE MT CR

4.6MI NE GREENVILLE, Greenville, SC

Built 1963 Load: 16.2 t ADT: 2,000

S-23-450

Fair

Over: TRIB TO BAKER CRK

8.6 MI SW SIMPSONVILLE, Greenville, SC

Built 1963 Load: 16.2 t ADT: 600

S-23-454

Fair

Over: LITTLE CREEK

9.8 MI SW SIMPSONVILLE, Greenville, SC

Built 1963 Load: 16.2 t ADT: 550

S-23-325

Fair

Over: GILDER CREEK

2.3 MI N MAULDIN, Greenville, SC

Built 1964 Load: 16.2 t ADT: 6,700

S-23-384

Fair

Over: BRUSHY CREEK

3.6 MI NE GREENVILLE, Greenville, SC

Built 1965 Load: 16.2 t ADT: 1,700

S-23-540

Fair

Over: TRIB TO ENOREE RIVER

3.5 MI S GREER, Greenville, SC

Built 1965 Load: 16.2 t ADT: 5,900

S-23-341

Fair

Over: TRIB TO JAMISON MILL CK

15.4 MI N GREER, Greenville, SC

Built 1966 Load: 16.2 t ADT: 1,050

S-23-671

Fair

Over: HUFF CREEK

6.5 MI SW SIMPSONVILLE, Greenville, SC

Built 1967 Load: 16.2 t ADT: 1,500

S-23-958

Fair

Over: ROCKY CREEK

1 MI SW SIMPSONVILLE, Greenville, SC

Built 1968 Load: 16.2 t ADT: 3,400

S-23-149

Fair

Over: BRUSHY CREEK

FARIS RD-GREENVILLE, Greenville, SC

Built 1969 Load: 16.2 t ADT: 13,800

S-23-737

Fair

Over: TRIB TO HUFF CREEK

4.8 MI SW MAULDIN, Greenville, SC

Built 1970 Load: 16.2 t ADT: 1,100

Showing 801-850 of 5,396 bridges

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.