US Bridges

Lapalco Blvd over Weyrauch Canal

Good

Jefferson Parish, Louisiana · 0.6MI.E.OF Manhattan · Structure no. 022629527900241

Built
1976
49 years old
Condition
Good
inspected January 2023
Type
Slab
Concrete
Length
57 ft
3 main spans
Daily traffic
30,000
1979 count
Owner
County
County Highway Agency

About this bridge

Lapalco Blvd over Weyrauch Canal is a concrete slab carrying Lapalco Blvd over Weyrauch Canal in Jefferson Parish, Louisiana. It was built in 1976, 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 30,000 vehicles a day, projected to reach 33,000 by 1999. The structure is 57 ft (17.4 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLapalco Blvd
CrossesWeyrauch Canal
Location0.6MI.E.OF Manhattan
RouteCounty Highway 0
CountyJefferson Parish
StateLouisiana
Coordinates29.87889, -90.0394
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating34.3 US tons
Inventory rating26.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,000 (1979)
Projected traffic33,000 by 1999
Trucks—
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
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 Weyrauch Canal built?

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

What condition is Lapalco Blvd over Weyrauch 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 Weyrauch Canal carry?

About 30,000 vehicles per day (1979 count).

How long is Lapalco Blvd over Weyrauch Canal?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 44 ft wide.

Who owns Lapalco Blvd over Weyrauch Canal?

It is owned by the County Highway Agency.