Auguillard Rd over Coulee
St. Martin Parish, Louisiana · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Auguillard Rd over Coulee in St. Martin Parish, Louisiana, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 1 (imminent failure condition) on the 0-9 scale.
- It was built in 1975, making it 50 years old at the 2025 inventory.
- It carries about 40 vehicles a day (traffic count year 1971).
- Its listed owner is the county highway agency.
- It is one of 10 of the 117 inventoried bridges in St. Martin Parish rated poor (8.5%); 10 (8.5%) are rated poor.
- Its traffic status in the 2025 inventory is closed to all traffic (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated October 2024, on a 12-month routine inspection cycle.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (30.29125, -91.87111)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 1 | 1 | Imminent failure condition |
Bridge details
| Structure | Concrete slab |
| Length | about 38 ft |
| Location | 0.2 Mi. N. of La 347 |
| NBI structure number | 035030176915231 |
| Condition class | Poor |
| Traffic status (item 41) | Closed to all traffic |
| Last inspection (item 90) | October 2024 |
| Inspection interval (item 91) | 12 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 St. Martin Parish
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US0090 over Creek | 1965 | 62,432 | Fair |
| Sawmill Rd over I-10 | 1970 | 60,066 | Good |
| I0010 over Atchafalaya River | 1972 | 56,100 | Fair |
| I0010-e over La 328 | 2020 | 50,425 | Good |
| I0010 over Bayou Teche | 1970 | 50,425 | Good |
| I0010 over E Atchafalaya Floodway | 1972 | 42,449 | Fair |
All bridges nearby: St. Martin Parish, LA bridge conditions · every bridge in St. Martin Parish · Louisiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.