LA0074 over Narcisse Bayou
Ascension Parish, Louisiana · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- LA0074 over Narcisse Bayou in Ascension Parish, Louisiana, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 2022, making it 3 years old at the 2025 inventory.
- It carries about 10,765 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 90 of the 216 inventoried bridges in Ascension Parish rated good (41.7%); 26 (12.0%) are rated poor.
- 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 → (30.25589, -90.93276)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 21 ft |
| Location | 0.1 Mi E of US 61 |
| NBI structure number | 610300000610019 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Louisiana department of transportation.
Busiest bridges in Ascension Parish
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I0010 over Drain | 1975 | 60,802 | Fair |
| I0010 over La 73 | 1975 | 60,802 | Fair |
| I0010 over Drain | 1975 | 60,802 | Good |
| I0010 over Drain | 1975 | 60,802 | Good |
| I0010 over LA429/Cornerview Rd | 1975 | 60,802 | Fair |
| I0010 over Drain | 1975 | 60,802 | Good |
All bridges nearby: Ascension Parish, LA bridge conditions · every bridge in Ascension Parish · Louisiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.