US Bridges

LA0039 over Lake Borgne Canal

Good

St. Bernard Parish, Louisiana · 2.2 MI North of LA 1249 · Structure no. 024400463208671

Built
1981
44 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
2,420 ft
1 main span
Daily traffic
47,739
2021 count
Owner
State
State Highway Agency

About this bridge

LA0039 over Lake Borgne Canal is a steel stringer/multi-beam or girder carrying LA0039 over Lake Borgne Canal in St. Bernard Parish, Louisiana. It was built in 1981, so it is 44 years old, older 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 47,739 vehicles a day, roughly 10% of them trucks, projected to reach 52,512 by 2041. The structure is 2,420 ft (737.6 m) long and 73 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesLA0039
CrossesLake Borgne Canal
Location2.2 MI North of LA 1249
RouteState Highway 39
CountySt. Bernard Parish
StateLouisiana
Coordinates29.90413, -89.8932
Functional classUrban Other Principal 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 protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+30 approach)
Design loadHS 20
Structure length2,420 ft (737.6 m)
Longest span170 ft (51.8 m)
Deck width73 ft (22.2 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47,739 (2021)
Projected traffic52,512 by 2041
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0039 over Lake Borgne Canal built?

It was built in 1981, making it 44 years old in 2025.

What condition is LA0039 over Lake Borgne Canal 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 September 2024.

How much traffic does LA0039 over Lake Borgne Canal carry?

About 47,739 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is LA0039 over Lake Borgne Canal?

The structure is 2,420 ft (737.6 m) long with a longest span of 170 ft (51.8 m) and a deck 73 ft wide.

Who owns LA0039 over Lake Borgne Canal?

It is owned by the State Highway Agency.