I40 over Tennessee River
Benton County, Tennessee · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I40 over Tennessee River in Benton County, Tennessee, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1992, making it 33 years old at the 2025 inventory.
- It carries about 35,649 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 96 of the 147 inventoried bridges in Benton County rated fair (65.3%); 2 (1.4%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: substructure 6 to 5.
- Its most recent inspection on record is dated January 2024, on a 24-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (35.86858, -87.94542)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 6 | 5 | Fair condition |
Bridge details
| Structure | Continuous steel girder and floorbeam |
| Length | about 2,669 ft |
| Location | 8 Mi.from Decatur Co.ln. |
| NBI structure number | 03I00400009 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | January 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Tennessee department of transportation.
Busiest bridges in Benton County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I40 over Branch | 1965 | 34,722 | Good |
| I40 over Branch | 1965 | 34,722 | Fair |
| Fap 69 over Cane Creek | 1972 | 10,748 | Good |
| Fas 391 over Cane Creek | 1950 | 10,072 | Good |
| Fap 69 350896T over CSX Railroad | 1972 | 8,682 | Fair |
| Fap 69 over Cypress Creek | 1926 | 6,331 | Fair |
All bridges nearby: Benton County, TN bridge conditions · every bridge in Benton County · Tennessee bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.