County HIGHWAY106 over Big Spring Branch
Marshall County, Alabama · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- County HIGHWAY106 over Big Spring Branch in Marshall 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 1968, making it 57 years old at the 2025 inventory.
- It carries about 320 vehicles a day (traffic count year 1994).
- Its listed owner is the county highway agency.
- It is one of 64 of the 171 inventoried bridges in Marshall County rated good (37.4%); 15 (8.8%) 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 September 2024, 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 → (34.21916, -86.40717)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 7 | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 79 ft |
| Location | 760 Ft E Jct 79 |
| NBI structure number | 004086 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Alabama department of transportation.
Busiest bridges in Marshall County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 431 over Guntersville Lake | 1938 | 35,218 | Fair |
| US 431 over Turkey Creek | 1952 | 31,175 | Fair |
| US 431 over Drum Creek | 1952 | 30,151 | Fair |
| US 431 over Branch | 1930 | 16,982 | Fair |
| SR 69 over Browns Creek | 1941 | 15,881 | Fair |
| SR 69 over Branch | 1934 | 12,904 | Good |
All bridges nearby: Marshall County, AL bridge conditions · every bridge in Marshall County · Alabama bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.