US Bridges

US0090-B over Mississippi River

Fair

Orleans Parish, Louisiana · US 90B over LA 428 · Structure no. 023602830802441

Built
1957
68 years old
Condition
Fair
inspected August 2024
Type
Truss - Thru
Steel Continuous
Length
3,019 ft
3 main spans
Daily traffic
67,143
2021 count
Owner
State
State Highway Agency

About this bridge

US0090-B over Mississippi River is a steel continuous truss - thru carrying US0090-B over Mississippi River in Orleans 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 67,143 vehicles a day, roughly 25% of them trucks, projected to reach 73,857 by 2041. The structure is 3,019 ft (920.2 m) long and 52 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesUS0090-B
CrossesMississippi River
LocationUS 90B over LA 428
RouteU.S. Route 90
CountyOrleans Parish
StateLouisiana
Coordinates29.93772, -90.0618
Functional classUrban Principal Arterial - Interstate

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.1 US tons
Inventory rating28.5 US tons

Structure

Structure typeTruss - Thru
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length3,019 ft (920.2 m)
Longest span1,576 ft (480.4 m)
Deck width52 ft (15.8 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deck25 ft (7.7 m)

Traffic and service

Average daily traffic67,143 (2021)
Projected traffic73,857 by 2041
Trucks25%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed98.8 mi (159 km)
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$15.3 million
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was US0090-B over Mississippi River built?

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

What condition is US0090-B over Mississippi River 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 August 2024.

How much traffic does US0090-B over Mississippi River carry?

About 67,143 vehicles per day (2021 count), of which roughly 25% are trucks.

How long is US0090-B over Mississippi River?

The structure is 3,019 ft (920.2 m) long with a longest span of 1,576 ft (480.4 m) and a deck 52 ft wide.

Who owns US0090-B over Mississippi River?

It is owned by the State Highway Agency.