US Bridges

US0090-B over Mississippi River

Poor

Orleans Parish, Louisiana · 1.4 MI W of LA 428 · Structure no. 023602830802442

Built
1985
40 years old
Condition
Poor
inspected August 2024
Type
Truss - Thru
Steel Continuous
Length
3,019 ft
3 main spans
Daily traffic
154,311
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 1985, so it is 40 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 154,311 vehicles a day, roughly 25% of them trucks, projected to reach 169,742 by 2041. The structure is 3,019 ft (920.2 m) long and 102 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS0090-B
CrossesMississippi River
Location1.4 MI W of LA 428
RouteU.S. Route 90
CountyOrleans Parish
StateLouisiana
Coordinates29.93892, -90.0523
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating24.7 US tons
Inventory rating19 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 span1,575 ft (480.1 m)
Deck width102 ft (31.1 m)
Roadway width92 ft (28 m)
Vertical clearance over deck25 ft (7.7 m)

Traffic and service

Average daily traffic154,311 (2021)
Projected traffic169,742 by 2041
Trucks25%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was US0090-B over Mississippi River built?

It was built in 1985, making it 40 years old in 2025.

What condition is US0090-B over Mississippi River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.

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

About 154,311 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 1,575 ft (480.1 m) and a deck 102 ft wide.

Who owns US0090-B over Mississippi River?

It is owned by the State Highway Agency.