LA3188 over Drain
St. John the Baptist Parish, Louisiana · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- LA3188 over Drain in St. John the Baptist 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 1983, making it 42 years old at the 2025 inventory.
- It carries about 6,064 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 13 of the 40 inventoried bridges in St. John the Baptist Parish rated good (32.5%); 1 (2.5%) 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 → (30.09324, -90.5046)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 21 ft |
| Location | 1.45 Mi. No. U.S. 61 |
| NBI structure number | 624808481501451 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Louisiana department of transportation.
Busiest bridges in St. John the Baptist Parish
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I0010 over US 51 & Swamps | 1972 | 48,723 | Fair |
| I0010 over Hope Canal | 1975 | 44,074 | Fair |
| I0010 over Mississippi Bayou | 1975 | 44,074 | Fair |
| I0010 over Reserve Relief Canal | 1974 | 44,074 | Fair |
| I0055 over Swamp | 1975 | 28,021 | Good |
| I0055 over Swamp | 2008 | 27,551 | Fair |
All bridges nearby: St. John the Baptist Parish, LA bridge conditions · every bridge in St. John the Baptist Parish · Louisiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.