Total Bridges
5,396
Public highway bridges in South Carolina
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
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%.
Condition Distribution
Bridge inventory deck-condition mix — South Carolina (FHWA NBI)
Counties (46)
Abbeville 96 Aiken 103 Allendale 43 Anderson 267 Bamberg 48 Barnwell 45 Beaufort 45 Berkeley 136 Calhoun 34 Charleston 196 Cherokee 113 Chester 95 Chesterfield 126 Clarendon 85 Colleton 139 Darlington 95 Dillon 62 Dorchester 112 Edgefield 82 Fairfield 81 Florence 161 Georgetown 71 Greenville 373 Greenwood 75 Hampton 60 Horry 259 Jasper 73 Kershaw 94 Lancaster 110 Laurens 146 Lee 50 Lexington 135 Marion 61 Marlboro 52 McCormick 32 Newberry 111 Oconee 119 Orangeburg 160 Pickens 156 Richland 211 Saluda 66 Spartanburg 361 Sumter 100 Union 82 Williamsburg 108 York 167
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
28
Mississippi
5.92% top marginal rate
45
South Carolina
6.10% top marginal rate
55
Wisconsin
6.13% top marginal rate
37
North Carolina
6.16% top marginal rate
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.
C-20-60
PoorOver: BR OF MORRIS CR
8.4 MI SW OF WINNSBORO, Fairfield, SC
Built 1960 Load: 0.3 t ADT: 125
S-12-353
PoorOver: BEAVER DAM CREEK
3MI NW GREAT FALLS, Chester, SC
Built 1974 Load: 0.6 t ADT: 200
C-30-548
PoorOver: NORTH RABON CREEK
11.5MI NW OF LAURENS, Laurens, SC
Built 1989 Load: 0.6 t ADT: 200
S-34-64
PoorOver: PITCH POT SWAMP
4MI W MARION, Marion, SC
Built 1967 Load: 1.0 t ADT: 200
S-39-250
PoorOver: MACHINE CREEK
8.0 MI N EASLEY, Pickens, SC
Built 1963 Load: 1.0 t ADT: 2,400
C-11-288
PoorOver: BR BROAD RIVER
3.8 MI SW BLACKBURG, Cherokee, SC
Built 1992 Load: 1.3 t ADT: 200
All Bridges in South Carolina
S-16-68
FairOver: BELLYACHE BRANCH
2MI N DARLINGTON, Darlington, SC
Built 1963 Load: 16.8 t ADT: 2,300
S-16-488
FairOver: JEFFERIES CREEK
1MI S HARTSVILLE, Darlington, SC
Built 1964 Load: 16.8 t ADT: 550
S-16-511
FairOver: TRIB TO LAKE SWAMP
5.5 MI E LAMAR, Darlington, SC
Built 1964 Load: 16.8 t ADT: 275
S-16-25
FairOver: SWIFT CREEK
4.0 MI SE HARTSVILLE, Darlington, SC
Built 1965 Load: 16.8 t ADT: 375
S-16-25
FairOver: TRIB TO SWIFT CREEK
4.0 MI SE HARTSVILLE, Darlington, SC
Built 1965 Load: 16.8 t ADT: 375
S-16-32
FairOver: LANES BRANCH
5MI NW LAMAR, Darlington, SC
Built 1999 Load: 16.8 t ADT: 425
S-16-580
FairOver: SWIFT CREEK
2MI W DARLINGTON, Darlington, SC
Built 1974 Load: 16.8 t ADT: 600
S-17-363
FairOver: LITTLE PEE DEE RIVER
13MI NW DILLON, Dillon, SC
Built 1963 Load: 16.8 t ADT: 75
S-17-31
FairOver: SWEET SWAMP
10MI NW DILLON, Dillon, SC
Built 1966 Load: 16.8 t ADT: 125
S-17-155
FairOver: THOMPSON CK
5MI W LAKE VIEW, Dillon, SC
Built 1967 Load: 16.8 t ADT: 275
S-17-151
FairOver: CATFISH CANAL
2MI W LATTA, Dillon, SC
Built 1971 Load: 16.8 t ADT: 150
S-21-132
FairOver: BUCK CREEK BRANCH
2.2MI NW PAMPLICO, Florence, SC
Built 1958 Load: 16.8 t ADT: 550
S-21-501
FairOver: BR-LAKE SWAMP
4.0 MI SW EFFINGHAM, Florence, SC
Built 1959 Load: 16.8 t ADT: 800
S-21-560
FairOver: BR-MUDDY CK
3MI S JOHNSONVILLE, Florence, SC
Built 1961 Load: 16.8 t ADT: 175
S-21-918
FairOver: POLK SWAMP
3MI E FLORENCE, Florence, SC
Built 1963 Load: 16.8 t ADT: 1,750
S-21-763
FairOver: BURGESS CANAL
6MI SE OLANTA, Florence, SC
Built 1965 Load: 16.8 t ADT: 250
S-21-885
FairOver: MIDDLE BRANCH
6MI E FLORENCE, Florence, SC
Built 1967 Load: 16.8 t ADT: 750
S-21-447
FairOver: BAY BRANCH SWAMP
4MI W TIMMONSVILLE, Florence, SC
Built 1970 Load: 16.8 t ADT: 125
S-21-884
FairOver: CARTER BRANCH
TOWN OF EFFINGHAM, Florence, SC
Built 1970 Load: 16.8 t ADT: 275
S-21-972
FairOver: KINGSTREE SWAMP
4MI SE OLANTA, Florence, SC
Built 1970 Load: 16.8 t ADT: 200
S-22-356
FairOver: PENNY ROYAL CREEK
6 MI SE OUTLAND, Georgetown, SC
Built 1966 Load: 16.8 t ADT: 350
S-26-45
FairOver: LOUSING SWAMP
4 MI SE GALIVANTS FERRY, Horry, SC
Built 1956 Load: 16.8 t ADT: 1,000
S-26-62
FairOver: SPRING SWAMP
8 MI W CONWAY, Horry, SC
Built 1959 Load: 16.8 t ADT: 800
S-26-306
FairOver: LONG BRANCH
4MI N GREEN SEA, Horry, SC
Built 1962 Load: 16.8 t ADT: 275
S-26-563
FairOver: BUCK CREEK
6MI E LORIS, Horry, SC
Built 1964 Load: 16.8 t ADT: 175
S-26-97
FairOver: PALMETTO SWAMP
7 MI W CONWAY, Horry, SC
Built 1966 Load: 16.8 t ADT: 850
S-26-430
FairOver: CEDAR CREEK
2MI SW FLOYD, Horry, SC
Built 1966 Load: 16.8 t ADT: 275
S-26-646
FairOver: MITCHELL SWAMP
6MI NW LORIS, Horry, SC
Built 1966 Load: 16.8 t ADT: 250
S-26-309
FairOver: PRINCE MILL
5MI NE AYNOR, Horry, SC
Built 1969 Load: 16.8 t ADT: 450
S-26-896
FairOver: HONEY CAMP BRANCH
10MI NW AYNOR, Horry, SC
Built 1972 Load: 16.8 t ADT: 100
S-26-897
FairOver: REEDY BRANCH
8.5MI NE AYNOR, Horry, SC
Built 1972 Load: 16.8 t ADT: 100
S-26-908
FairOver: CAMP SWAMP
5.5 MI N LONGS, Horry, SC
Built 1975 Load: 16.8 t ADT: 75
S-26-65
FairOver: GREER SWAMP
4 MI N HOMEWOOD, Horry, SC
Built 1977 Load: 16.8 t ADT: 3,900
C-26-696
FairOver: MAPLE SWAMP
4.0 MI NE OF CONWAY, Horry, SC
Built 1992 Load: 16.8 t ADT: 250
S-26-333
FairOver: CRABTREE SWAMP
CITY OF CONWAY, Horry, SC
Built 1966 Load: 16.8 t ADT: 475
US 521
FairOver: HANGING ROCK CREEK
2.0 MI-S-KERSHAW, Lancaster, SC
Built 1953 Load: 16.8 t ADT: 3,900
S-29-467
FairOver: HANGING ROCK CREEK
1.8 MI SE HEATH SPRINGS, Lancaster, SC
Built 1969 Load: 16.8 t ADT: 275
S-31-195
FairOver: BLACK CREEK
9 MI NW OF BISHOPVILLE, Lee, SC
Built 1960 Load: 16.8 t ADT: 150
S-34-302
FairOver: CATFISH CREEK TRIB
5.0 MI N MARION, Marion, SC
Built 1960 Load: 16.8 t ADT: 75
S-34-500
FairOver: AGNAY SWAMP
2MI N PEE DEE, Marion, SC
Built 1960 Load: 16.8 t ADT: 275
S-35-54
FairOver: NAKED CREEK
6 MI E WALLACE, Marlboro, SC
Built 1958 Load: 16.8 t ADT: 550
S-35-51
FairOver: COTTINGHAM CREEK
3 MI SE BENNETTSVILLE, Marlboro, SC
Built 1961 Load: 16.8 t ADT: 425
S-35-475
FairOver: CROOKED CREEK
ON 3RD AVE N BENN, Marlboro, SC
Built 1963 Load: 16.8 t ADT: 900
S-35-18
FairOver: THREE CREEKS
2.5 MI S BLENHEIM, Marlboro, SC
Built 1964 Load: 16.8 t ADT: 425
S-38-160
FairOver: LITTLE BEAVER CREEK
2MI N LIVINGSTON, Orangeburg, SC
Built 1960 Load: 16.8 t ADT: 200
S-44-74
FairOver: MILL CREEK
4.3 MI NW JONESVILLE, Union, SC
Built 1963 Load: 16.8 t ADT: 125
S-45-116
FairOver: HOME SWAMP
8.0 MI SE CADES, Williamsburg, SC
Built 1956 Load: 16.8 t ADT: 325
S-45-84
FairOver: INDIAN TOWN SWAMP
2.0 MI N STUCKEY, Williamsburg, SC
Built 1963 Load: 16.8 t ADT: 650
S-45-317
FairOver: BR OF OX SWAMP
8.0 MI E LANE, Williamsburg, SC
Built 1963 Load: 16.8 t ADT: 450
S-45-326
FairOver: CEDAR SWAMP
10.0 MI E KINGSTREE, Williamsburg, SC
Built 1963 Load: 16.8 t ADT: 50
Showing 1,001-1,050 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.
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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |