LA3147 over Humble Canal
PoorPosted for loadVermilion Parish, Louisiana · 5.5 MI S. of LA 82 · Structure no. 035708576605721
- Built
- 1982
- 43 years old, rebuilt 2009
- Condition
- Poor
- inspected December 2023
- Type
- Movable - Swing
- Steel
- Length
- 491 ft
- 1 main span
- Daily traffic
- 221
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
LA3147 over Humble Canal is a steel movable - swing carrying LA3147 over Humble Canal in Vermilion Parish, Louisiana. It was built in 1982 and reconstructed in 2009, so it is 43 years old, younger than the Louisiana average of 43 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 221 vehicles a day, roughly 12% of them trucks, projected to reach 243 by 2041. The structure is 491 ft (149.7 m) long and 31 ft wide. If it were closed, the detour would be 98.8 mi (159 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was LA3147 over Humble Canal built?
It was built in 1982, making it 43 years old in 2025. It was reconstructed in 2009.
What condition is LA3147 over Humble Canal in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2023.
How much traffic does LA3147 over Humble Canal carry?
About 221 vehicles per day (2021 count), of which roughly 12% are trucks.
How long is LA3147 over Humble Canal?
The structure is 491 ft (149.7 m) long with a longest span of 80 ft (24.4 m) and a deck 31 ft wide.
Who owns LA3147 over Humble Canal?
It is owned by the State Highway Agency.