LA0568 over Lake St John Drain Ca
Concordia Parish, Louisiana · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- LA0568 over Lake St John Drain Ca in Concordia Parish, Louisiana, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1973, making it 52 years old at the 2025 inventory.
- It carries about 2,265 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 20 of the 42 inventoried bridges in Concordia Parish rated fair (47.6%); 6 (14.3%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated April 2023, on a 24-month routine inspection cycle.
- 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 → (31.70634, -91.462)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Timber stringer or multi-beam girder |
| Length | about 58 ft |
| Location | 4.8 Mi South of La 570 |
| NBI structure number | 581500750108001 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | April 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Louisiana department of transportation.
Busiest bridges in Concordia Parish
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US0065 over Mississippi River | 1940 | 21,661 | Fair |
| US0065 over Mississippi River | 1989 | 20,933 | Fair |
| US0084 over Black River | 2009 | 7,080 | Fair |
| US0084 over Caney Bayou | 1932 | 6,163 | Poor |
| US0084 over Cross Bayou | 1977 | 6,163 | Good |
| US0065 over Carroll Bayou | 1981 | 5,796 | Good |
All bridges nearby: Concordia Parish, LA bridge conditions · every bridge in Concordia Parish · Louisiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.