US Bridges

LA3046 over US 90

Fair

Jefferson Parish, Louisiana · 0.04 MI SE of US 90 · Structure no. 022604230100031

Built
1957
68 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
945 ft
20 main spans
Daily traffic
55,994
2021 count
Owner
State
State Highway Agency

About this bridge

LA3046 over US 90 is a steel stringer/multi-beam or girder carrying LA3046 over US 90 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.

It carries about 55,994 vehicles a day, roughly 10% of them trucks, projected to reach 61,593 by 2041. The structure is 945 ft (288 m) long and 34 ft wide.

Location

Open in Google Maps
CarriesLA3046
CrossesUS 90
Location0.04 MI SE of US 90
RouteState Highway 3046
CountyJefferson Parish
StateLouisiana
Coordinates29.96251, -90.15776
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans20
Design loadHS 20
Structure length945 ft (288 m)
Longest span73 ft (22.3 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55,994 (2021)
Projected traffic61,593 by 2041
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.7 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was LA3046 over US 90 built?

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

What condition is LA3046 over US 90 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 February 2023.

How much traffic does LA3046 over US 90 carry?

About 55,994 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is LA3046 over US 90?

The structure is 945 ft (288 m) long with a longest span of 73 ft (22.3 m) and a deck 34 ft wide.

Who owns LA3046 over US 90?

It is owned by the State Highway Agency.