LA0421 over Mill Creek
FairWest Feliciana Parish, Louisiana · LA0421 · Structure no. 616308630206381
- Built
- 1968
- 57 years old
- Condition
- Fair
- inspected December 2023
- Type
- Slab
- Concrete
- Length
- 230 ft
- 12 main spans
- Daily traffic
- 739
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
LA0421 over Mill Creek is a concrete slab carrying LA0421 over Mill Creek in West Feliciana Parish, Louisiana. It was built in 1968, so it is 57 years old, older than the Louisiana average of 43 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 739 vehicles a day, roughly 14% of them trucks, projected to reach 812 by 2041. The structure is 230 ft (70.1 m) long and 28 ft wide. If it were closed, the detour would be 14.3 mi (23 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was LA0421 over Mill Creek built?
It was built in 1968, making it 57 years old in 2025.
What condition is LA0421 over Mill Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2023.
How much traffic does LA0421 over Mill Creek carry?
About 739 vehicles per day (2021 count), of which roughly 14% are trucks.
How long is LA0421 over Mill Creek?
The structure is 230 ft (70.1 m) long with a longest span of 19 ft (5.8 m) and a deck 28 ft wide.
Who owns LA0421 over Mill Creek?
It is owned by the State Highway Agency.