Flat Top Road over Alabama Power Rail Line
Jefferson County, Alabama · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Flat Top Road over Alabama Power Rail Line in Jefferson County, Alabama, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1999, making it 26 years old at the 2025 inventory.
- It carries about 6,500 vehicles a day (traffic count year 2023).
- Its listed owner is the county highway agency.
- It is one of 836 of the 1,069 inventoried bridges in Jefferson County rated fair (78.2%); 24 (2.2%) are rated poor.
- 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 → (33.66245, -87.03575)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 8 | Very good condition |
| Superstructure | 8 | Very good condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 100 ft |
| Location | .3 Mi E Snowville-brent R |
| NBI structure number | 017549 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Alabama department of transportation.
Busiest bridges in Jefferson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I - 20/59 East over I - 20/59 West | 2004 | 157,350 | Good |
| I - 20/59 over Stream | 1973 | 140,400 | Fair |
| I - 65 over 6TH Ave. South | 1970 | 138,490 | Fair |
| I - 65 over 2ND Ave No | 1969 | 136,580 | Fair |
| I - 65 over 4TH. Ave. North | 1969 | 136,580 | Fair |
| I - 65 over 3RD Ave North | 1969 | 136,580 | Fair |
All bridges nearby: Jefferson County, AL bridge conditions · every bridge in Jefferson County · Alabama bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.