SR 20 over Southern RR
Colbert County, Alabama · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR 20 over Southern RR in Colbert County, Alabama, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1993, making it 32 years old at the 2025 inventory.
- It carries about 8,645 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 115 of the 172 inventoried bridges in Colbert County rated fair (66.9%); 3 (1.7%) 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: superstructure 7 to 6, substructure 7 to 6.
- Its most recent inspection on record is dated November 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 → (34.70728, -87.65801)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 7 | 6 | Satisfactory condition |
| Substructure | 7 | 6 | Satisfactory condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 166 ft |
| Location | 0.5 Mi E Jct SR 2 & SR 13 |
| NBI structure number | 015801 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | November 2024 |
| 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 Alabama department of transportation.
Busiest bridges in Colbert County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR 2 over Tennessee River | 1939 | 27,850 | Fair |
| SR 133 over Pond Creek | 2007 | 25,510 | Good |
| SR 2 over Ashe Boulevard | 2022 | 18,856 | Good |
| SR 133 over Reservation Road | 2001 | 16,170 | Good |
| SR 13 over Bear Creek | 1953 | 15,070 | Fair |
| SR 133 over Tennessee River | 2001 | 13,610 | Good |
All bridges nearby: Colbert County, AL bridge conditions · every bridge in Colbert County · Alabama bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.