Calypso St over Melon Canal
Ouachita Parish, Louisiana · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Calypso St over Melon Canal in Ouachita Parish, Louisiana, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 2004, making it 21 years old at the 2025 inventory.
- It carries about 300 vehicles a day (traffic count year 2003).
- Its listed owner is a city or municipal highway agency.
- It is one of 211 of the 331 inventoried bridges in Ouachita Parish rated fair (63.7%); 42 (12.7%) 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 → (32.5101, -92.09504)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete slab |
| Length | about 39 ft |
| Location | 0.1 MI N of I-20 |
| NBI structure number | 053732306920521 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Louisiana department of transportation.
Busiest bridges in Ouachita Parish
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| 18TH St at Desiard over Drainage Canal | 1996 | 100,000 | Good |
| I0020 over Black Bayou | 1965 | 84,225 | Fair |
| I0020 over City St/icg Rr/ouachita | 1965 | 84,225 | Fair |
| I0020 over Youngs Bayou | 1965 | 84,225 | Fair |
| I0020 over US 165 | 1965 | 84,225 | Fair |
| I0020 over E Youngs Bayou | 1965 | 84,225 | Fair |
All bridges nearby: Ouachita Parish, LA bridge conditions · every bridge in Ouachita Parish · Louisiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.