I40 Wbl over SR 1
Cumberland County, Tennessee · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I40 Wbl over SR 1 in Cumberland County, Tennessee, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1966, making it 59 years old at the 2025 inventory.
- It carries about 30,660 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 71 of the 138 inventoried bridges in Cumberland County rated fair (51.4%); 23 (16.7%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated October 2023, 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 → (35.91, -84.89)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous prestressed concrete stringer or multi-beam girder |
| Length | about 162 ft |
| Location | 1 Mi From Cox Valley Dr |
| NBI structure number | 18I00400036 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Tennessee department of transportation.
Busiest bridges in Cumberland County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I40 Ebl over Obed River | 1966 | 37,495 | Fair |
| I40 Wbl over Obed River | 1966 | 37,495 | Fair |
| I40 over SR 24 | 1963 | 36,293 | Poor |
| I40 over SR 24 | 1963 | 36,293 | Poor |
| I40 over Meadow Creek | 1967 | 36,293 | Good |
| I40 Ebl over Drowning Creek | 1966 | 35,960 | Poor |
All bridges nearby: Cumberland County, TN bridge conditions · every bridge in Cumberland County · Tennessee bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.