Dewey Marks Ln. over Wauksha Bayou
St. Landry Parish, Louisiana · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Dewey Marks Ln. over Wauksha Bayou in St. Landry Parish, Louisiana, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1994, making it 31 years old at the 2025 inventory.
- It carries about 50 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 155 of the 316 inventoried bridges in St. Landry Parish rated fair (49.1%); 28 (8.9%) are rated poor.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (30.66038, -91.95722)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 5 | Fair condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Concrete slab |
| Length | about 95 ft |
| Location | 0.2 Mi SW. of La 359 |
| NBI structure number | 034930396915741 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Louisiana department of transportation.
Busiest bridges in St. Landry Parish
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I0049 over Bayou Carencro | 1963 | 44,889 | Fair |
| I0049 over LA0093 | 1978 | 44,889 | Good |
| I0049 over LA3233 | 1982 | 44,317 | Fair |
| I0049 over Bayou Callahan | 1962 | 44,243 | Fair |
| I0049 over Judson Walsh Road | 1982 | 44,138 | Good |
| I0049 over US0190 | 1981 | 42,326 | Good |
All bridges nearby: St. Landry Parish, LA bridge conditions · every bridge in St. Landry Parish · Louisiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.