SR1 / US431 over Branch
Calhoun County, Alabama · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR1 / US431 over Branch in Calhoun County, Alabama, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 2003, making it 22 years old at the 2025 inventory.
- It carries about 24,949 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 122 of the 386 inventoried bridges in Calhoun County rated good (31.6%); 15 (3.9%) 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 February 2025, on a 24-month routine inspection cycle.
- 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 → (33.62711, -85.78614)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 7 | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 33 ft |
| Location | .8 Mi. North of SR4/US78 |
| NBI structure number | 019518 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | February 2025 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Alabama department of transportation.
Busiest bridges in Calhoun County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-20 over Stream | 2003 | 47,103 | Fair |
| SR1/US431 over SR4/US78 | 2003 | 40,376 | Good |
| I-20 over Branch | 1969 | 37,868 | Fair |
| I20 over Snow Creek | 2012 | 37,868 | Good |
| SR21 over Branch | 1959 | 32,026 | Fair |
| SR21 over Snow Creek | 1969 | 32,026 | Fair |
All bridges nearby: Calhoun County, AL bridge conditions · every bridge in Calhoun County · Alabama bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.