Bridge conditions in Hamilton County, Tennessee
464 inventoried bridges · 28 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Hamilton County tracks close to typical: 28 of its 464 inventoried bridges (6.0%) are rated poor, against a national rate of about 7%.
- 28 of the 464 bridges in Hamilton County, Tennessee, are rated in poor condition (6.0%) in the 2025 National Bridge Inventory, as of .
- 198 bridges (42.7%) are rated good and 238 (51.3%) fair.
- The median Hamilton County bridge was built in 1976.
- The busiest poor-rated bridge is I24 Ebl & Wbl over Branch (built 1960), carrying about 115,412 vehicles a day.
Good 42.7% · Fair 51.3% · Poor 6.0% of 464 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.
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I75 over South Chickamauga Creek | 1960 | 137,904 | Good |
| I75 350029M over CSX Railroad | 1960 | 137,904 | Fair |
| I75 Rp over Small Branch | 1960 | 137,904 | Good |
| I75 over E.brainard Rd (SR 320) | 1960 | 120,984 | Fair |
| I75 Rp over Small Branch | 1960 | 120,984 | Good |
| I24 Exit Rp Fr Wbl over Small Branch | 1960 | 115,412 | Fair |
| I24 Ebl & Wbl over Branch | 1960 | 115,412 | Poor |
| I24 over I-75 NB to I-24 WB | 2020 | 115,412 | Good |
| I24 Ebl to I75 Sbl over Spring Creek | 2020 | 115,412 | Good |
| I24 over I75 | 2020 | 115,412 | Good |
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.