State profile · Near median Poor share

South Carolina bridge safety

Condition ratings, load ratings, and Poor-condition data for every public highway bridge in South Carolina, based on the FHWA National Bridge Inventory.

5,396
Public bridges
34.8%
Good condition
6.1%
Poor condition

Data updated May 2026

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 whose lowest applicable component is rated 0-4

-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 - Poor-condition 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 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.

ID

Idaho

5.51% top marginal rate
Structure
Progressive
Burden @ $100K
$1,742

MS

Mississippi

5.92% top marginal rate
Structure
Progressive
Burden @ $100K
$16,823
Selected

SC

South Carolina

6.10% top marginal rate
Structure
Progressive
Burden @ $100K
$5,396

WI

Wisconsin

6.13% top marginal rate
Structure
Progressive
Burden @ $100K
$14,851

NC

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 the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

All Bridges in South Carolina

SC 12

Unknown

Over: US 378

1 MI W OF COLUMBIA, Lexington, SC

Built 1976 ADT: 14,700

S-32-273

Unknown

Over: I-20

5 MI NW OF WEST COLUMBIA, Lexington, SC

Built 1979 ADT: 77,400

I-77 NB

Unknown

Over: S-129 & RR CSXT

3 MI S OF CAYCE, Lexington, SC

Built 1985 ADT: 2,500

I-77 NB

Unknown

Over: L-66

3 MI SE SPRINGDALE, Lexington, SC

Built 1985 ADT: 62

I-77 SB

Unknown

Over: S-129 & RR CSXT

3 MI S OF CAYCE, Lexington, SC

Built 1985 ADT: 2,500

RAMP ON I-77 NB

Unknown

Over: I-26/RAMP ON/OFF I-26

5 MI SW OF COLUMBIA, Lexington, SC

Built 1986 ADT: 34,550

RAMP OF I-77 SB

Unknown

Over: RAMPOFF I-26 WB

5 MI SW OF COLUMBIA, Lexington, SC

Built 1986 ADT: 8,200

RAMP OFF I-77 NB

Unknown

Over: I-26 & I-77

5 MI SW OF COLUMBIA, Lexington, SC

Built 1986 ADT: 69,100

SC 35

Unknown

Over: I-77

3 MI SE OF CAYCE, Lexington, SC

Built 1996 ADT: 89,500

L-32-5890

Unknown

Over: S-32-378

COLUMBIA AIRPORT, Lexington, SC

Built 2004 ADT: 9,200

I-20

Unknown

Over: S-32-1065 & RR NS

2 MI SE OF LEXINGTON, Lexington, SC

Built 2021 ADT: 150

SC 41

Unknown

Over: U.S. 501

2 MI SE OF RAINS, Marion, SC

Built 1972 ADT: 15,500

US 501 BUS NBL

Unknown

Over: US 501

4MI N OF MARION, Marion, SC

Built 1988 ADT: 10,700

US 501

Unknown

Over: US 501 BUS

2MI S OF MARION, Marion, SC

Built 1988 ADT: 15,300

US 501 RAMP SBL

Unknown

Over: S-41

3MI NE OF MARION, Marion, SC

Built 1988 ADT: 3,200

US 501 NB

Unknown

Over: S-41

3MI NE OF MARION, Marion, SC

Built 1989 ADT: 1,600

US 501

Unknown

Over: SC 38

5 MI N OF MARION, Marion, SC

Built 2005 ADT: 6,900

SC 41 ALT

Unknown

Over: US 501

2 MI NE OF MARION, Marion, SC

Built 2010 ADT: 8,100

S-36-32

Unknown

Over: I-26

8.0 MI NW NEWBERRY, Newberry, SC

Built 1959 ADT: 44,300

S-36-44

Unknown

Over: I-26

3.9 MI NE NEWBERRY, Newberry, SC

Built 1959 ADT: 44,400

S-36-99

Unknown

Over: I-26

7.7 MI SE NEWBERRY, Newberry, SC

Built 1959 ADT: 43,900

SC 59

Unknown

Over: I-85

13.2 MI S SENECA, Oconee, SC

Built 1961 ADT: 46,200

S-37-100

Unknown

Over: I-85

12.8 MI S SENECA, Oconee, SC

Built 1962 ADT: 44,100

S-37-35

Unknown

Over: S.C. 28

3 MI SE WALHALLA, Oconee, SC

Built 1972 ADT: 16,700

SC 11

Unknown

Over: U.S. 76 & 123

3.0 MI E OF WESTMINSTER, Oconee, SC

Built 1975 ADT: 10,000

SC 28 EB

Unknown

Over: SC 11

2.0 MI E OF WALHALLA, Oconee, SC

Built 1975 ADT: 2,900

SC 28 WB

Unknown

Over: SC 11

2.0 MI E OF WALHALLA, Oconee, SC

Built 1975 ADT: 2,900

SC 11

Unknown

Over: I-85

13.0 MI S WESTMINSTER, Oconee, SC

Built 1976 ADT: 48,400

I-26 EB

Unknown

Over: S.C. 33 & S.C.L. RR

1.5 MI NW OF ORANGEBURG, Orangeburg, SC

Built 1960 ADT: 1,000

I-26 WB

Unknown

Over: S-38-2029 SOUTHERN RR

3 MI NE OF ORANGEBURG, Orangeburg, SC

Built 1960 ADT: 62

US 601

Unknown

Over: I-26

3MI N OF ORANGEBURG, Orangeburg, SC

Built 1960 ADT: 51,200

S-38-36

Unknown

Over: I-26

1 MI N BOWMAN, Orangeburg, SC

Built 1960 ADT: 49,900

S-38-166

Unknown

Over: I-26

7MI N ORANGEBURG, Orangeburg, SC

Built 1960 ADT: 51,200

S-38-196

Unknown

Over: I-26

7MI SE ORANGEBURG, Orangeburg, SC

Built 1960 ADT: 49,900

S-38-692

Unknown

Over: I-26

4MI NE BOWMAN, Orangeburg, SC

Built 1960 ADT: 49,100

US 301

Unknown

Over: I-26

7 MI E ORANGEBURG, Orangeburg, SC

Built 1961 ADT: 48,900

S-38-1302

Unknown

Over: I-26

8MI SE BOWMAN, Orangeburg, SC

Built 1961 ADT: 49,700

S-38-1304

Unknown

Over: I-26

9MI N ORANGEBURG, Orangeburg, SC

Built 1961 ADT: 51,200

US 15 NB

Unknown

Over: I-95

2MI S OF SANTEE, Orangeburg, SC

Built 2015 ADT: 35,700

US 15

Unknown

Over: I-95

8MI NW OF HOLLY HILL, Orangeburg, SC

Built 1971 ADT: 35,000

I-95 SB

Unknown

Over: I-26

8 MI SE OF BOWMAN, Orangeburg, SC

Built 1972 ADT: 24,850

I-95 NB

Unknown

Over: U.S. 176

2 MI NW OF HOLLY HILL, Orangeburg, SC

Built 1973 ADT: 1,500

S-38-50

Unknown

Over: I-26

7 MI E OF ORANGEBURG, Orangeburg, SC

Built 2019 ADT: 48,900

SC 93

Unknown

Over: US 76

1.5 MI E OF CLEMSON, Pickens, SC

Built 2001 ADT: 16,500

US 123 NB

Unknown

Over: S-64

2MI S OF LIBERTY, Pickens, SC

Built 1962 ADT: 375

US 123 SB

Unknown

Over: U.S. 178

2MI W OF EASLEY, Pickens, SC

Built 1962 ADT: 4,600

S-39-18

Unknown

Over: US 123

2.0 MI SE CENTRAL, Pickens, SC

Built 1962 ADT: 22,700

S-39-43

Unknown

Over: US 123

2.0 MI S LIBERTY, Pickens, SC

Built 1962 ADT: 26,300

S-39-271

Unknown

Over: US 123

1.0 MI E CLEMSON, Pickens, SC

Built 1962 ADT: 26,000

SC 8

Unknown

Over: U.S.123

CITY OF EASLEY, Pickens, SC

Built 1963 ADT: 25,400

Showing 351-400 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.

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.

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.