LA1181 over State Drainage Canal
Avoyelles Parish, Louisiana · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- LA1181 over State Drainage Canal in Avoyelles Parish, Louisiana, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1987, making it 38 years old at the 2025 inventory.
- It carries about 1,716 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 53 of the 150 inventoried bridges in Avoyelles Parish rated fair (35.3%); 26 (17.3%) are rated poor.
- 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 → (30.9796, -91.9659)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 5 | Fair condition |
Bridge details
| Structure | Concrete slab |
| Length | about 39 ft |
| Location | 0.37 M. E of W. Jct La 11 |
| NBI structure number | 080508052300371 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Louisiana department of transportation.
Busiest bridges in Avoyelles Parish
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I0049 over La 106 | 1986 | 19,302 | Good |
| I0049 over Acadiana Railway | 1986 | 19,302 | Fair |
| I0049 over La 115 | 1987 | 19,302 | Good |
| LA0001 over Coulee Des Grue | 1931 | 18,571 | Fair |
| LA0001 over Bayou Perot | 1970 | 10,795 | Good |
| I0049 over La 106 | 1986 | 10,352 | Good |
All bridges nearby: Avoyelles Parish, LA bridge conditions · every bridge in Avoyelles Parish · Louisiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.