Fas 156 over Tennessee River
Marion County, Tennessee · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Fas 156 over Tennessee River in Marion County, Tennessee, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1981, making it 44 years old at the 2025 inventory.
- It carries about 4,316 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 88 of the 177 inventoried bridges in Marion County rated fair (49.7%); 6 (3.4%) 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: deck 7 to 6.
- Its most recent inspection on record is dated September 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 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 → (35.0157, -85.69627)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 6 | Satisfactory condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Steel through arch |
| Length | about 1,514 ft |
| Location | 2 Mi.from I-24 |
| NBI structure number | 58SR1560001 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
| Fracture critical (item 92A) | Yes |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Tennessee department of transportation.
Busiest bridges in Marion County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I24 EB over Running Water Creek | 1965 | 54,610 | Good |
| I24 WB over Running Water Creek | 1965 | 54,610 | Good |
| I24 over Moroney Gulf Branch | 1965 | 54,610 | Fair |
| I24 over Running Water Creek | 1965 | 54,610 | Fair |
| I24 over Running Water Creek | 1965 | 54,610 | Good |
| I24 over Murphy Hollow Creek | 1965 | 54,610 | Fair |
All bridges nearby: Marion County, TN bridge conditions · every bridge in Marion County · Tennessee bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.