Fau 3599 350044P over Norfolk Southern RR
Hamilton County, Tennessee · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Fau 3599 350044P over Norfolk Southern RR in Hamilton County, Tennessee, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1955, making it 70 years old at the 2025 inventory.
- It carries about 4,753 vehicles a day (traffic count year 2021).
- Its listed owner is a city or municipal highway agency.
- It is one of 28 of the 464 inventoried bridges in Hamilton County rated poor (6.0%); 28 (6.0%) are rated poor.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (35.0743, -85.25318)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 4 | Poor condition |
| Substructure | 5 | Fair condition |
Bridge details
| Structure | Steel girder and floorbeam |
| Length | about 249 ft |
| Location | In Chattanooga |
| NBI structure number | 33M35990001 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Tennessee department of transportation.
Busiest bridges in Hamilton 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 |
All bridges nearby: Hamilton County, TN bridge conditions · every bridge in Hamilton County · Tennessee bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.