US Bridges

Lapalco Blvd over Weyrauch Canal

Fair

Jefferson Parish, Louisiana · 0.6MI.E.OF Manhattan · Structure no. 022629527900242

Built
1971
54 years old
Condition
Fair
inspected January 2023
Type
Slab
Concrete
Length
57 ft
3 main spans
Daily traffic
50,000
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 1971, so it is 54 years old, older 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 5 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 50,000 vehicles a day, projected to reach 55,000 by 1999. The structure is 57 ft (17.4 m) long and 49 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
Coordinates29.8791, -90.03924
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 alignment6: Equal to present minimum criteria
Operating rating29.3 US tons
Inventory rating22.5 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 width49 ft (14.8 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50,000 (1979)
Projected traffic55,000 by 1999
Trucks—
Lanes on structure3
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 Weyrauch Canal built?

It was built in 1971, making it 54 years old in 2025.

What condition is Lapalco Blvd over Weyrauch 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 January 2023.

How much traffic does Lapalco Blvd over Weyrauch Canal carry?

About 50,000 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 49 ft wide.

Who owns Lapalco Blvd over Weyrauch Canal?

It is owned by the County Highway Agency.