Duncan Road over Blackwater Creek
Walker County, Alabama · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Duncan Road over Blackwater Creek in Walker 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 1962, making it 63 years old at the 2025 inventory.
- It carries about 950 vehicles a day (traffic count year 2006).
- Its listed owner is the county highway agency.
- It is one of 167 of the 275 inventoried bridges in Walker County rated fair (60.7%); 16 (5.8%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: substructure 8 to 7.
- Its most recent inspection on record is dated February 2024, on a 24-month routine inspection cycle.
- It is coded scour critical (NBI item 113 = 3): scour critical: foundations unstable for the assessed or calculated scour.
- 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 → (33.91728, -87.37761)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 8 | 7 | Good condition |
Bridge details
| Structure | Concrete tee beam |
| Length | about 136 ft |
| Location | 1/4 Mile N Hwy 5 |
| NBI structure number | 007595 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | February 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 3: scour critical: foundations unstable for the assessed or calculated scour |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Alabama department of transportation.
Busiest bridges in Walker County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-22 over Burnt Caine Creek | 2004 | 25,062 | Good |
| I-22 over Burnt Caine Creek | 2004 | 25,062 | Fair |
| I-22 over BNSF Railroad | 2004 | 25,062 | Good |
| I-22 over Dora Flat Creek Rd | 2004 | 25,062 | Good |
| I-22 over BNSF Railroad | 2004 | 25,062 | Good |
| I-22 over Cr-81 | 2004 | 25,062 | Good |
All bridges nearby: Walker County, AL bridge conditions · every bridge in Walker County · Alabama bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.