US Bridges

N. Causeway Blvd over LA Southern RR

FairPosted for load

Jefferson Parish, Louisiana · 0.6 MI N of US 90 · Structure no. 022629586900937

Built
1957
68 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
645 ft
12 main spans
Daily traffic
7,806
2021 count
Owner
County
County Highway Agency

About this bridge

N. Causeway Blvd over LA Southern RR is a steel stringer/multi-beam or girder carrying N. Causeway Blvd over LA Southern RR in Jefferson Parish, Louisiana. It was built in 1957, so it is 68 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 7,806 vehicles a day, projected to reach 8,586 by 2041. The structure is 645 ft (196.6 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesN. Causeway Blvd
CrossesLA Southern RR
Location0.6 MI N of US 90
RouteCounty Highway 0
CountyJefferson Parish
StateLouisiana
Coordinates29.97446, -90.15579
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating26.1 US tons
Inventory rating20 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans12
Design loadHS 20
Structure length645 ft (196.6 m)
Longest span79 ft (24.1 m)
Deck width28 ft (8.5 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,806 (2021)
Projected traffic8,586 by 2041
Trucks—
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was N. Causeway Blvd over LA Southern RR built?

It was built in 1957, making it 68 years old in 2025.

What condition is N. Causeway Blvd over LA Southern RR 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 May 2023.

How much traffic does N. Causeway Blvd over LA Southern RR carry?

About 7,806 vehicles per day (2021 count).

How long is N. Causeway Blvd over LA Southern RR?

The structure is 645 ft (196.6 m) long with a longest span of 79 ft (24.1 m) and a deck 28 ft wide.

Who owns N. Causeway Blvd over LA Southern RR?

It is owned by the County Highway Agency.