US0090 over Mermentau River
Acadia Parish, Louisiana · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US0090 over Mermentau River in Acadia Parish, Louisiana, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1980, making it 45 years old at the 2025 inventory.
- It carries about 2,899 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 118 of the 280 inventoried bridges in Acadia Parish rated good (42.1%); 23 (8.2%) 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 → (30.19098, -92.59382)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Continuous steel girder and floorbeam |
| Length | about 2,030 ft |
| Location | 1.5 Mi. West of La 92 |
| NBI structure number | 030100030900001 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Louisiana department of transportation.
Busiest bridges in Acadia Parish
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I0010 over Drain | 1966 | 78,651 | Fair |
| I0010 over LA0013 | 1966 | 66,003 | Fair |
| I0010 over Drain | 1966 | 66,003 | Good |
| I0010 over Drain | 1959 | 58,865 | Fair |
| I0010 over Akdnrr & Frankel Farm Rd | 1961 | 58,865 | Fair |
| I0010 over Bayou Plaquemine | 1961 | 58,865 | Fair |
All bridges nearby: Acadia Parish, LA bridge conditions · every bridge in Acadia Parish · Louisiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.