LA0577 over Bull Bayou
Franklin Parish, Louisiana · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- LA0577 over Bull Bayou in Franklin Parish, Louisiana, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1955, making it 70 years old at the 2025 inventory.
- It carries about 1,341 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 5 of the 130 inventoried bridges in Franklin Parish rated poor (3.8%); 5 (3.8%) 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 April 2023, 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 → (32.24694, -91.708)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 4 | 4 | Poor condition |
Bridge details
| Structure | Timber stringer or multi-beam girder |
| Length | about 78 ft |
| Location | 2.0 Mi East of La 15 |
| NBI structure number | 582103440102031 |
| Condition class | Poor |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | April 2023 |
| Inspection interval (item 91) | 12 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 Louisiana department of transportation.
Busiest bridges in Franklin Parish
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| LA0015 over Turkey Creek | 1979 | 17,677 | Good |
| LA0015 over Ash Slough Relief | 1987 | 9,661 | Good |
| LA0015 over Ash Slough | 1987 | 9,661 | Good |
| LA0015 over Pine Bayou Canal | 1988 | 9,661 | Fair |
| LA0130 over Ash Slough | 1980 | 7,372 | Good |
| LA0130 over West Turkey Creek | 1986 | 7,372 | Fair |
All bridges nearby: Franklin Parish, LA bridge conditions · every bridge in Franklin Parish · Louisiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.