Bridge conditions in Sullivan County, Tennessee
367 inventoried bridges · 10 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
The federal inventory lists 367 bridges in Sullivan County: 164 rated good, 193 fair, and 10 poor.
- 10 of the 367 bridges in Sullivan County, Tennessee, are rated in poor condition (2.7%) in the 2025 National Bridge Inventory, as of .
- 164 bridges (44.7%) are rated good and 193 (52.6%) fair.
- The median Sullivan County bridge was built in 1973.
- The busiest poor-rated bridge is Piedmont Ave over Beaver Creek (built 1975), carrying about 8,273 vehicles a day.
Good 44.7% · Fair 52.6% · Poor 2.7% of 367 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 |
|---|---|---|---|
| Piedmont Ave over Beaver Creek | 1975 | 8,273 | Poor |
| Fau 3890 243983D over CSX Railroad & Fau 3892 | 1959 | 7,621 | Poor |
| Fau 355 over Reedy Creek | 1955 | 6,249 | Poor |
| Fau 3899 over Br of Reedy Creek | 1938 | 3,100 | Poor |
| Fas 44 over Branch | 1977 | 1,302 | Poor |
| Nfa 1392 over Indian Creek | 1928 | 800 | Poor |
| Nfa 1392 over Indian Creek | 1928 | 800 | Poor |
| Nfa B357 over I26 | 1972 | 380 | Poor |
| Nfa A839 over Harpers Creek | 1988 | 120 | Poor |
| Road 910 over Madd Creek | 1950 | 50 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I81 over Nfa B352 | 1968 | 53,763 | Good |
| I81 over Nfa B352 | 1968 | 53,763 | Fair |
| I26 Rt Ln over Nfa 2640 | 1969 | 49,932 | Fair |
| I26 Lt Ln over Nfa 2640 | 1969 | 49,932 | Fair |
| I26 Rt Ln over Rock Springs Rd. | 1968 | 41,117 | Good |
| I181 Rt Ln over Rock Springs Rd. | 1968 | 41,117 | Good |
| I181 Lf Ln over Horse Creek | 1981 | 41,117 | Good |
| I181 Rt Ln over Horse Creek | 1981 | 41,117 | Fair |
| I181 Lf Ln over SR 93 Ramp D | 1981 | 41,117 | Fair |
| I181 Rt Ln over SR 93 Ramp D | 1981 | 41,117 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Tennessee: Tennessee 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.