I75 over Tennessee River
Loudon County, Tennessee · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I75 over Tennessee River in Loudon County, Tennessee, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 7 (good condition) on the 0-9 scale.
- It was built in 1977, making it 48 years old at the 2025 inventory.
- It carries about 52,785 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 76 of the 117 inventoried bridges in Loudon County rated good (65.0%); 2 (1.7%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- It was rated fair in the 2024 inventory and is now good (superstructure 6 to 7, substructure 5 to 7).
- Its most recent inspection on record is dated October 2024, on a 24-month routine inspection cycle.
- It has fracture-critical members (NBI item 92A): steel tension members without a redundant load path, which get their own scheduled inspections.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (35.75493, -84.3755)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 6 | 7 | Good condition |
| Substructure | 5 | 7 | Good condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 1,671 ft |
| Location | 3 M SE of City of Loudon |
| NBI structure number | 53I00750015 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 4: foundations stable, field review says exposed foundations need protection |
| Fracture critical (item 92A) | Yes |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Tennessee department of transportation.
Busiest bridges in Loudon County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I75 Ramp to I40 WB over I40 Ebl | 1964 | 58,302 | Good |
| I75 over SR 1 | 1964 | 58,302 | Good |
| I75 over SR 1 | 1964 | 58,302 | Good |
| I75 over Hope Creek | 1972 | 58,302 | Fair |
| I75 over I75 Rl / E. Hotchkiss CR | 1972 | 55,134 | Fair |
| I75 over I75 Ll / E. Hotchkiss CR | 1972 | 55,134 | Fair |
All bridges nearby: Loudon County, TN bridge conditions · every bridge in Loudon County · Tennessee bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.