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

US 123/SC 93 CON

Unknown

Over: US 123 SBL

1.0 MI SW EASLEY, Pickens, SC

Built 1963 ADT: 25,400

S-39-53

Unknown

Over: U.S. 123

2.0 MI E LIBERTY, Pickens, SC

Built 1963 ADT: 29,500

SC 153

Unknown

Over: US 123

4.2 MI E EASLEY, Pickens, SC

Built 1985 ADT: 41,400

US 76

Unknown

Over: US 601

9 MI W OF STATEBURG, Richland, SC

Built 1957 ADT: 3,900

I-26 RAMP

Unknown

Over: RAMP OFF I-26 EB

4 MI NW OF COLUMBIA, Richland, SC

Built 1958 ADT: 61,900

RAMP OFF I-126 WB

Unknown

Over: I-126E@RAMPON I-126WB

CITY OF COLUMBIA, Richland, SC

Built 1959 ADT: 31,750

US 76/176

Unknown

Over: I-26

1 MI N OF IRMO, Richland, SC

Built 2002 ADT: 80,100

I-126

Unknown

Over: L-43-4083

1 MI NW OF COLUMBIA, Richland, SC

Built 1960 ADT: 132

I-20

Unknown

Over: SC 555,SOU RR,FRTG RD

6 MI N OF COLA, Richland, SC

Built 1965 ADT: 11,800

S-40-52

Unknown

Over: I-20

3MI S PONTIAC, Richland, SC

Built 1965 ADT: 81,800

S-40-1036

Unknown

Over: I-20

7 MI NE OF COLUMBIA, Richland, SC

Built 1965 ADT: 83,900

US 21

Unknown

Over: I-20

5 MI NE OF COLUMBIA, Richland, SC

Built 1966 ADT: 104,200

SC 277 NB

Unknown

Over: SC 16

CITY OF COLUMBIA, Richland, SC

Built 1973 ADT: 9,750

SC 277 SB

Unknown

Over: SC 16

CITY OF COLUMBIA, Richland, SC

Built 1973 ADT: 9,750

S-40-228

Unknown

Over: SC 277

2 MI N OF COLUMBIA, Richland, SC

Built 1973 ADT: 44,400

S-40-326

Unknown

Over: SC 277

2 MI N OF COLUMBIA, Richland, SC

Built 1973 ADT: 44,400

SC 277 RAMP

Unknown

Over: RAMP OFF I-20 WB

6 MI NE OF COLA, Richland, SC

Built 1974 ADT: 59,900

RAMP OFF I-20 WB

Unknown

Over: I-20

6 MI NE OF COLUMBIA, Richland, SC

Built 1974 ADT: 94,500

SC 277 NB

Unknown

Over: S-40-1579

4 MI NE OF COLUMBIA, Richland, SC

Built 1974 ADT: 137

SC 277 SB

Unknown

Over: S-40-218 & RR CSXT

4 MI NE OF COLUMBIA, Richland, SC

Built 1974 ADT: 8,350

SC 277 SB

Unknown

Over: I-20

6 MI NE OF COLA, Richland, SC

Built 1974 ADT: 47,250

S-40-907

Unknown

Over: SC 277

4 MI NE OF COLUMBIA, Richland, SC

Built 1974 ADT: 40,300

S-40-973

Unknown

Over: SC 277

1 MI W OF DENTSVILLE, Richland, SC

Built 1974 ADT: 54,300

I-77 NB

Unknown

Over: US 21

10 MI N. COLUMBIA, Richland, SC

Built 1976 ADT: 8,000

I-77 SB

Unknown

Over: US 21

10 MI N. COLUMBIA, Richland, SC

Built 1976 ADT: 8,000

SC 555 NB

Unknown

Over: I-77 & RAMPS ON/OFF I-77

8.0 MI NE OF COLUMBIA, Richland, SC

Built 1976 ADT: 44,200

S-40-52 EB

Unknown

Over: I-77

10 MI N COLUMBIA, Richland, SC

Built 1976 ADT: 46,300

S-40-52 WB

Unknown

Over: I-77

10 MI N COLUMBIA, Richland, SC

Built 1976 ADT: 46,300

S-40-83

Unknown

Over: I-77

9 MI NE OF COLUMBIA, Richland, SC

Built 1976 ADT: 92,600

S-40-1437

Unknown

Over: I-77

11 MI N OF COLUMBIA, Richland, SC

Built 1976 ADT: 72,700

US 1

Unknown

Over: I-77

1.0 MI N OF I-20, Richland, SC

Built 1977 ADT: 62,400

I-77 NB

Unknown

Over: S-1722 & JACKSON CK

0.5 MI NW US 1, Richland, SC

Built 1981 ADT: 1,000

I-77 SB

Unknown

Over: S-1722 & JACKSON CK

0.5 MI NW US 1, Richland, SC

Built 1981 ADT: 1,000

S-40-757

Unknown

Over: I-26

9 MI NW OF COLUMBIA, Richland, SC

Built 1981 ADT: 95,800

S-40-1196

Unknown

Over: I-20

8 MI NE COLUMBIA, Richland, SC

Built 1981 ADT: 69,200

I-20 WB

Unknown

Over: ALPINE RD S-40-63

8 MI NE OF COLUMBIA, Richland, SC

Built 1983 ADT: 4,900

I-77 NB

Unknown

Over: SC 48

4 MI S COLUMBIA, Richland, SC

Built 1983 ADT: 10,600

I-77 SB

Unknown

Over: SC 48

4 MI S COLUMBIA, Richland, SC

Built 1983 ADT: 10,600

RAMP OFF I-77 SB

Unknown

Over: I-20/RAMP OFF I-20 EB

8 MI NE OF COLUMBIA, Richland, SC

Built 1985 ADT: 34,600

RAMP OFF I-126 WB

Unknown

Over: SALUDA RIV&I-26&I-126&RR

4 MI NW OF COLUMBIA, Richland, SC

Built 1985 ADT: 45,800

I-77 SB

Unknown

Over: S-40-1534

5 MI SE OF COLUMBIA, Richland, SC

Built 1988 ADT: 1,750

S-40-3020

Unknown

Over: I-126

2 MI W OF COLUMBIA, Richland, SC

Built 1988 ADT: 62,300

SC 12 SPUR

Unknown

Over: I-77

2 MI E OF FOREST ACRES, Richland, SC

Built 1989 ADT: 91,500

SC 768 WB

Unknown

Over: I-77

5.5 MI S. OF COLA, Richland, SC

Built 1989 ADT: 41,350

I-77 NB

Unknown

Over: US 76/378 & SC 262

5 MI E OF COLUMBIA, Richland, SC

Built 1991 ADT: 25,000

I-77 SB

Unknown

Over: US 76/378 & SC 262

5 MI SE OF COLUMBIA, Richland, SC

Built 1991 ADT: 25,000

I-77 SB

Unknown

Over: SC 760 & SOUTH FORK CK

4 MI E OF COLUMBIA, Richland, SC

Built 1991 ADT: 5,600

RAMP OFF I-77 NB

Unknown

Over: I-77

6 MI NE OF COLUMBIA, Richland, SC

Built 1993 ADT: 82,700

S-40-2150

Unknown

Over: I-77

2 MI SE OF DENTSVILLE, Richland, SC

Built 1993 ADT: 82,700

I-77 SB

Unknown

Over: SC 12

2 MI SE OF DENTSVILLE, Richland, SC

Built 1995 ADT: 7,000

Showing 401-450 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.