US Bridges

Lapalco Blvd over Main Canal

Good

Jefferson Parish, Louisiana · 0.6 Miles from Segnette B · Structure no. 022629540901021

Built
1976
49 years old, rebuilt 2007
Condition
Good
inspected January 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
165 ft
3 main spans
Daily traffic
1,000
1979 count
Owner
County
County Highway Agency

About this bridge

Lapalco Blvd over Main Canal is a prestressed concrete stringer/multi-beam or girder carrying Lapalco Blvd over Main Canal in Jefferson Parish, Louisiana. It was built in 1976 and reconstructed in 2007, so it is 49 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 1,000 vehicles a day, projected to reach 1,100 by 1999. The structure is 165 ft (50.3 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLapalco Blvd
CrossesMain Canal
Location0.6 Miles from Segnette B
RouteCounty Highway 0
Coordinates29.89892, -90.17661
Functional classRural Local

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 inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45.3 US tons
Inventory rating35.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length165 ft (50.3 m)
Longest span64 ft (19.5 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (1979)
Projected traffic1,100 by 1999
Trucks—
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Lapalco Blvd over Main Canal built?

It was built in 1976, making it 49 years old in 2025. It was reconstructed in 2007.

What condition is Lapalco Blvd over Main 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 January 2023.

How much traffic does Lapalco Blvd over Main Canal carry?

About 1,000 vehicles per day (1979 count).

How long is Lapalco Blvd over Main Canal?

The structure is 165 ft (50.3 m) long with a longest span of 64 ft (19.5 m) and a deck 42 ft wide.

Who owns Lapalco Blvd over Main Canal?

It is owned by the County Highway Agency.