CR # 306 over Blue Grith Swamp
Dallas County, Alabama · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- CR # 306 over Blue Grith Swamp in Dallas County, Alabama, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2000, making it 25 years old at the 2025 inventory.
- It carries about 50 vehicles a day (traffic count year 1997).
- Its listed owner is the county highway agency.
- It is one of 56 of the 227 inventoried bridges in Dallas County rated good (24.7%); 8 (3.5%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (32.42127, -86.91999)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 8 | Very good condition |
| Superstructure | 8 | Very good condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Concrete channel beam |
| Length | about 67 ft |
| Location | 2.0 Mi S SR 14 |
| NBI structure number | 017274 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Alabama department of transportation.
Busiest bridges in Dallas County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 80 over Valley Creek | 1933 | 25,120 | Fair |
| US 80 over Alabama River | 1940 | 13,920 | Fair |
| Al 22 over Valley Creek | 2013 | 11,090 | Fair |
| Al 41 over Stream | 1976 | 11,020 | Fair |
| Al 41 over RR * Beachcreek | 1976 | 10,950 | Fair |
| Al 41 over Alabama River | 1970 | 10,540 | Fair |
All bridges nearby: Dallas County, AL bridge conditions · every bridge in Dallas County · Alabama bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.