Larock Road over Natalbany Creek
Tangipahoa Parish, Louisiana · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Larock Road over Natalbany Creek in Tangipahoa Parish, Louisiana, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 3 (serious condition) on the 0-9 scale.
- It was built in 1950, making it 75 years old at the 2025 inventory.
- It carries about 14 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 59 of the 477 inventoried bridges in Tangipahoa Parish rated poor (12.4%); 59 (12.4%) are rated poor.
- 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 → (30.68566, -90.52394)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 3 | Serious condition |
| Substructure | 4 | Poor condition |
Bridge details
| Structure | Steel through truss |
| Length | about 122 ft |
| Location | 0.9 Mi W of US 51 |
| NBI structure number | 625330411903141 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Louisiana department of transportation.
Busiest bridges in Tangipahoa Parish
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I0012 over Yellow Water River Rel. | 1970 | 58,377 | Good |
| I0012 over I-55 | 1970 | 58,377 | Fair |
| I0012 over Drainage | 1970 | 58,377 | Fair |
| I0012 over US 51 Bus | 1975 | 58,377 | Fair |
| I0012 over Icg Railroad | 1975 | 58,377 | Fair |
| I0012 over Ponchatoula Creek | 1975 | 58,377 | Fair |
All bridges nearby: Tangipahoa Parish, LA bridge conditions · every bridge in Tangipahoa Parish · Louisiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.