Jefferson Island over Parc Perdu Bayou
Iberia Parish, Louisiana · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Jefferson Island over Parc Perdu Bayou in Iberia Parish, Louisiana, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1960, making it 65 years old at the 2025 inventory.
- It carries about 2,868 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 67 of the 142 inventoried bridges in Iberia Parish rated fair (47.2%); 15 (10.6%) 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 → (29.98977, -91.931)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete slab |
| Length | about 100 ft |
| Location | 3.0 Mi. W. of US 90 |
| NBI structure number | 032329593915591 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Louisiana department of transportation.
Busiest bridges in Iberia Parish
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US0090 over Creek | 1963 | 62,432 | Good |
| US0090 over LA0088 | 2004 | 62,432 | Fair |
| US0090 over Rodere Canal | 1969 | 32,022 | Fair |
| US0090 over LA0014 | 1969 | 31,222 | Fair |
| US0090 over Armenco Canal | 1965 | 30,572 | Fair |
| US0090 over La 675 | 2009 | 29,549 | Good |
All bridges nearby: Iberia Parish, LA bridge conditions · every bridge in Iberia Parish · Louisiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.