US Bridges

LA3235 over Drain Canal

Fair

Lafourche Parish, Louisiana · 2.8 Miles North of Bayou · Structure no. 022900000020403

Built
1985
40 years old
Condition
Fair
inspected May 2023
Type
Culvert
Steel
Length
23 ft
1 main span
Daily traffic
6,255
2021 count
Owner
State
State Highway Agency

About this bridge

LA3235 over Drain Canal is a steel culvert carrying LA3235 over Drain Canal in Lafourche Parish, Louisiana. It was built in 1985, so it is 40 years old, younger 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 6 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 6,255 vehicles a day, roughly 11% of them trucks, projected to reach 6,880 by 2041. The structure is 23 ft (7 m) long and 134 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

Open in Google Maps
CarriesLA3235
CrossesDrain Canal
Location2.8 Miles North of Bayou
RouteState Highway 3235
CountyLafourche Parish
StateLouisiana
Coordinates29.40117, -90.2803
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating82.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length23 ft (7 m)
Longest span23 ft (7 m)
Deck width134 ft (40.8 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,255 (2021)
Projected traffic6,880 by 2041
Trucks11%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$292,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA3235 over Drain Canal built?

It was built in 1985, making it 40 years old in 2025.

What condition is LA3235 over Drain Canal 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 May 2023.

How much traffic does LA3235 over Drain Canal carry?

About 6,255 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is LA3235 over Drain Canal?

The structure is 23 ft (7 m) long with a longest span of 23 ft (7 m) and a deck 134 ft wide.

Who owns LA3235 over Drain Canal?

It is owned by the State Highway Agency.