I75 NB to I24WB over Spring Creek
Hamilton County, Tennessee · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I75 NB to I24WB over Spring Creek in Hamilton County, Tennessee, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 2020, making it 5 years old at the 2025 inventory.
- It carries about 110,752 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 238 of the 464 inventoried bridges in Hamilton County rated fair (51.3%); 28 (6.0%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- It was rated good in the 2024 inventory and is now fair (superstructure 7 to 6, substructure 8 to 7).
- Its most recent inspection on record is dated July 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 → (35.00118, -85.2106)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 6 | Satisfactory condition |
| Substructure | 8 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 136 ft |
| Location | at I-75/i-24 Intersection |
| NBI structure number | 33I00750091 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | July 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
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.