US 231 Sbl over Tallapoosa River
Montgomery County, Alabama · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 231 Sbl over Tallapoosa River in Montgomery County, Alabama, 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 1955, making it 70 years old at the 2025 inventory.
- It carries about 16,115 vehicles a day (traffic count year 2013).
- Its listed owner is the state highway agency.
- It is one of 363 of the 597 inventoried bridges in Montgomery County rated fair (60.8%); 16 (2.7%) 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 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 → (32.455, -86.20333)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous steel girder and floorbeam |
| Length | about 1,069 ft |
| Location | Montgomery Elmore Co Line |
| NBI structure number | 005162 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 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 Alabama department of transportation.
Busiest bridges in Montgomery County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I85 over Rosa Parks | 1971 | 133,908 | Fair |
| In 85 over Ryan St | 1969 | 109,830 | Fair |
| In 85 over Ann St | 1969 | 109,830 | Fair |
| In 85 over Chestnut Street | 1970 | 109,830 | Fair |
| I85 over Stream | 1969 | 109,530 | Fair |
| I-85 over S Jackson St | 1969 | 104,310 | Poor |
All bridges nearby: Montgomery County, AL bridge conditions · every bridge in Montgomery County · Alabama bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.