US Bridges

US0090 over Mississippi River

Fair

Jefferson Parish, Louisiana · .01 MI South of LA 48 · Structure no. 022600060100001

Built
1936
89 years old, rebuilt 2013
Condition
Fair
inspected December 2023
Type
Truss - Thru
Steel Continuous
Length
2,381 ft
4 main spans
Daily traffic
55,210
2021 count
Owner
State
State Highway Agency

About this bridge

US0090 over Mississippi River is a steel continuous truss - thru carrying US0090 over Mississippi River in Jefferson Parish, Louisiana. It was built in 1936 and reconstructed in 2013, so it is 89 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 55,210 vehicles a day, roughly 10% of them trucks, projected to reach 60,731 by 2041. The structure is 2,381 ft (725.7 m) long and 125 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesUS0090
CrossesMississippi River
Location.01 MI South of LA 48
RouteU.S. Route 90
CountyJefferson Parish
StateLouisiana
Coordinates29.94133, -90.1656
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.7 US tons
Inventory rating31.4 US tons

Structure

Structure typeTruss - Thru
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length2,381 ft (725.7 m)
Longest span790 ft (240.8 m)
Deck width125 ft (38.1 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deck20 ft (6.1 m)

Traffic and service

Average daily traffic55,210 (2021)
Projected traffic60,731 by 2041
Trucks10%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible 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 over Mississippi River built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 2013.

What condition is US0090 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 December 2023.

How much traffic does US0090 over Mississippi River carry?

About 55,210 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is US0090 over Mississippi River?

The structure is 2,381 ft (725.7 m) long with a longest span of 790 ft (240.8 m) and a deck 125 ft wide.

Who owns US0090 over Mississippi River?

It is owned by the State Highway Agency.