US0171 over Bayou Zourie
Vernon Parish, Louisiana · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US0171 over Bayou Zourie in Vernon Parish, Louisiana, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2012, making it 13 years old at the 2025 inventory.
- It carries about 12,466 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 195 of the 337 inventoried bridges in Vernon Parish rated good (57.9%); 28 (8.3%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (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 24-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (31.04362, -93.2754)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Continuous prestressed concrete stringer or multi-beam girder |
| Length | about 220 ft |
| Location | 1.1 North of La 10 |
| NBI structure number | 085800000080592 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | February 2024 |
| Inspection interval (item 91) | 24 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 Vernon Parish
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Allen Gordy Rd over Flactor Creek Trib. | 1984 | 100,060 | Fair |
| US0171 over Sales Branch | 1975 | 17,200 | Good |
| US0171 over Flat Creek | 1979 | 14,458 | Good |
| US0171 over Sales Branch | 1975 | 14,458 | Fair |
| US0171 over Creek | 1930 | 14,420 | Good |
| US0171 over Flat Creek | 1981 | 14,420 | Good |
All bridges nearby: Vernon Parish, LA bridge conditions · every bridge in Vernon Parish · Louisiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.