Ardoin Road over Bayou Grand Marais
Jefferson Davis Parish, Louisiana · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ardoin Road over Bayou Grand Marais in Jefferson Davis Parish, Louisiana, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1965 and reconstructed in 2013, making it 60 years old at the 2025 inventory.
- It carries about 50 vehicles a day (traffic count year 2019).
- Its listed owner is the county highway agency.
- It is one of 170 of the 242 inventoried bridges in Jefferson Davis Parish rated fair (70.2%); 45 (18.6%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (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 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 → (30.33531, -92.69683)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Concrete slab |
| Length | about 57 ft |
| Location | 1.6 MI W of INT LA 26 |
| NBI structure number | 072730201924171 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | September 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | U: unknown foundation, not evaluated for scour |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Louisiana department of transportation.
Busiest bridges in Jefferson Davis Parish
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I0010 over Drain | 1964 | 66,534 | Fair |
| I0010 over La 26 | 1965 | 61,210 | Fair |
| I0010 over US 165 Frontage Rd RR | 1964 | 27,700 | Poor |
| US0090 over Canal | 1931 | 14,902 | Fair |
| US0165 over Bayou | 2017 | 11,886 | Good |
| US0165 over Bayou Serpent | 2017 | 11,886 | Good |
All bridges nearby: Jefferson Davis Parish, LA bridge conditions · every bridge in Jefferson Davis Parish · Louisiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.