LA0506 over Castor Relief
Caldwell Parish, Louisiana · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- LA0506 over Castor Relief in Caldwell Parish, Louisiana, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 0 (failed condition, out of service) on the 0-9 scale.
- It was built in 1931, making it 94 years old at the 2025 inventory.
- It carries about 306 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 12 of the 124 inventoried bridges in Caldwell Parish rated poor (9.7%); 12 (9.7%) 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 August 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 → (31.98868, -92.2513)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 0 | 0 | Failed condition, out of service |
| Superstructure | 0 | 0 | Failed condition, out of service |
| Substructure | 0 | 0 | Failed condition, out of service |
Bridge details
| Structure | Timber stringer or multi-beam girder |
| Length | about 97 ft |
| Location | 6.8 Mi West of US 165 |
| NBI structure number | 581103450300861 |
| Condition class | Poor |
| Traffic status (item 41) | Closed to all traffic |
| Last inspection (item 90) | August 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 Caldwell Parish
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US0165 over Black Bayou Relief | 2004 | 13,633 | Good |
| US0165 over Little Black Bayou | 2004 | 13,633 | Fair |
| US0165 over Hurricane Creek | 2004 | 13,633 | Good |
| US0165 over Ouachita River @ Columbi | 2007 | 13,633 | Fair |
| US0165 over Union Pacific R/R | 2007 | 12,669 | Fair |
| US0165 over Black Bayou Relief | 1945 | 12,669 | Fair |
All bridges nearby: Caldwell Parish, LA bridge conditions · every bridge in Caldwell Parish · Louisiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.