S. Westport Dr. over Drainage Canal
West Baton Rouge Parish, Louisiana · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- S. Westport Dr. over Drainage Canal in West Baton Rouge Parish, Louisiana, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1970, making it 55 years old at the 2025 inventory.
- It carries about 3,500 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 38 of the 72 inventoried bridges in West Baton Rouge Parish rated fair (52.8%); 10 (13.9%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated June 2024, 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 → (30.43958, -91.21113)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 20 ft |
| Location | 2.0 Mi. E. of LA 415 |
| NBI structure number | 616100000616100 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 2024 |
| 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 West Baton Rouge Parish
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I0010 over La 1 & M.p. RR | 1968 | 197,070 | Fair |
| I0010 over Bayou Choctaw | 1974 | 80,618 | Fair |
| I0010 over Bridge 290 Ebl | 1973 | 80,618 | Good |
| I0010 over Drainage Canal | 1968 | 80,618 | Good |
| I0010 over Drainage Canal | 1969 | 80,618 | Fair |
| I0010 over La 415 | 1969 | 80,618 | Fair |
All bridges nearby: West Baton Rouge Parish, LA bridge conditions · every bridge in West Baton Rouge Parish · Louisiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.