Shirley Plant Rd over Bayou Beouf
Avoyelles Parish, Louisiana · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Shirley Plant Rd over Bayou Beouf in Avoyelles 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 1978, making it 47 years old at the 2025 inventory.
- It carries about 43 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 26 of the 150 inventoried bridges in Avoyelles Parish rated poor (17.3%); 26 (17.3%) 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 February 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 → (30.96356, -92.2182)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 3 | 3 | Serious condition |
| Superstructure | 3 | 3 | Serious condition |
| Substructure | 1 | 1 | Imminent failure condition |
Bridge details
| Structure | Timber stringer or multi-beam girder |
| Length | about 115 ft |
| Location | 0.29 Mi. West of La 1177 |
| NBI structure number | 080530578921311 |
| Condition class | Poor |
| Traffic status (item 41) | Closed to all traffic |
| Last inspection (item 90) | February 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 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.