Bridge conditions in Dillon County, South Carolina
129 inventoried bridges · 14 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Of the 129 Dillon County bridges in the federal inventory, 14 carry a poor rating. That 10.9% share is roughly 2x the national average.
- 14 of the 129 bridges in Dillon County, South Carolina, are rated in poor condition (10.9%) in the 2025 National Bridge Inventory, as of .
- 32 bridges (24.8%) are rated good and 83 (64.3%) fair.
- The median Dillon County bridge was built in 1967.
- The busiest poor-rated bridge is Sc 9 over Ropers Mill Branch (built 1920), carrying about 8,300 vehicles a day.
Good 24.8% · Fair 64.3% · Poor 10.9% of 129 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Sc 9 over Ropers Mill Branch | 1920 | 8,300 | Poor |
| Sc 34 over I-95 | 1966 | 7,200 | Poor |
| S-17-198 over S.c.l. Railroad | 1961 | 1,900 | Poor |
| Sc 917 over CSX Railroad | 1948 | 1,550 | Poor |
| Sc 57 over Beaverdam Creek | 1941 | 1,150 | Poor |
| S-17-61 over Hayes Swamp | 1956 | 550 | Poor |
| S-17-22 over Little Pee Dee River | 1962 | 450 | Poor |
| S-17-22 over Bear Swamp | 1984 | 450 | Poor |
| S-17-54 over Catfish Canal | 1976 | 250 | Poor |
| S-17-192 over Sweet Swamp | 1956 | 225 | Poor |
| S-17-192 over Sweet Swamp | 1956 | 225 | Poor |
| S-17-293 over Cypress Branch | 1967 | 150 | Poor |
| S-17-744 over Bear Swamp Branch | 1979 | 125 | Poor |
| S-17-429 over Little Pee Dee | 1967 | 50 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-95 NB over Great Pee Dee Swamp | 1966 | 23,150 | Fair |
| I-95 SB over Great Pee Dee Swamp | 1966 | 23,150 | Fair |
| I-95 NB over Brownsville Creek & Frtg | 1967 | 23,150 | Fair |
| I-95 NB over Poccosin Swamp | 1967 | 23,150 | Fair |
| I-95 SB over Brownsville Creek & Frtg | 1967 | 23,150 | Fair |
| I-95 SB over Poccosin Swamp | 1967 | 23,150 | Fair |
| I-95 NB over Catfish Canal | 1965 | 20,950 | Fair |
| I-95 SB over Catfish Canal | 1965 | 20,950 | Fair |
| I-95 NB over Big Reedy Creek | 1966 | 20,950 | Fair |
| I-95 SB over Big Reedy Creek | 1966 | 20,950 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of South Carolina: South Carolina bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.