Al-18 over Wilson Creek
Lamar County, Alabama · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Al-18 over Wilson Creek in Lamar County, Alabama, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2005, making it 20 years old at the 2025 inventory.
- It carries about 2,518 vehicles a day (traffic count year 2020).
- Its listed owner is the state highway agency.
- It is one of 42 of the 180 inventoried bridges in Lamar County rated good (23.3%); 5 (2.8%) 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 June 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 → (33.74, -88.19167)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 320 ft |
| Location | 4.8M E of Miss State Line |
| NBI structure number | 018065 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 2024 |
| 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 Lamar County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Al-17 over Branch | 1930 | 5,574 | Fair |
| Al-18 over Branch | 1939 | 5,046 | Fair |
| Al-118 over Bogue Creek | 1928 | 4,850 | Fair |
| Al-118 over Bogue Creek Relief | 1928 | 4,271 | Fair |
| Al-118 over Turkey Creek | 2001 | 4,271 | Fair |
| Al-18 over Yellow Creek Relief | 1979 | 3,590 | Fair |
All bridges nearby: Lamar County, AL bridge conditions · every bridge in Lamar County · Alabama bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.