US Bridges

LA0654 over Bayou Lafourche

Good

Lafourche Parish, Louisiana · .01 MI East of LA 1 · Structure no. 022908291000001

Built
2003
22 years old
Condition
Good
inspected June 2023
Type
Movable - Lift
Steel
Length
233 ft
1 main span
Daily traffic
1,791
2021 count
Owner
State
State Highway Agency

About this bridge

LA0654 over Bayou Lafourche is a steel movable - lift carrying LA0654 over Bayou Lafourche in Lafourche Parish, Louisiana. It was built in 2003, so it is 22 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,791 vehicles a day, roughly 11% of them trucks, projected to reach 1,970 by 2041. The structure is 233 ft (71 m) long and 66 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLA0654
CrossesBayou Lafourche
Location.01 MI East of LA 1
RouteState Highway 654
CountyLafourche Parish
StateLouisiana
Coordinates29.67718, -90.54226
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating38.3 US tons
Inventory rating29.3 US tons

Structure

Structure typeMovable - Lift
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+7 approach)
Design loadHS 20
Structure length233 ft (71 m)
Longest span100 ft (30.5 m)
Deck width66 ft (20.2 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deck21 ft (6.3 m)

Traffic and service

Average daily traffic1,791 (2021)
Projected traffic1,970 by 2041
Trucks11%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was LA0654 over Bayou Lafourche built?

It was built in 2003, making it 22 years old in 2025.

What condition is LA0654 over Bayou Lafourche in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does LA0654 over Bayou Lafourche carry?

About 1,791 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is LA0654 over Bayou Lafourche?

The structure is 233 ft (71 m) long with a longest span of 100 ft (30.5 m) and a deck 66 ft wide.

Who owns LA0654 over Bayou Lafourche?

It is owned by the State Highway Agency.