US Bridges

US0090 over Off Ramp I

Good

Lafourche Parish, Louisiana · .2 MI East of LA 182 · Structure no. 022904240806887

Built
1980
45 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
440 ft
10 main spans
Daily traffic
12,192
2021 count
Owner
State
State Highway Agency

About this bridge

US0090 over Off Ramp I is a prestressed concrete continuous stringer/multi-beam or girder carrying US0090 over Off Ramp I in Lafourche Parish, Louisiana. It was built in 1980, so it is 45 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 12,192 vehicles a day, roughly 18% of them trucks, projected to reach 13,411 by 2041. The structure is 440 ft (134.1 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS0090
CrossesOff Ramp I
Location.2 MI East of LA 182
RouteU.S. Route 90
Coordinates29.68884, -90.6393
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating84 US tons
Inventory rating46 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length440 ft (134.1 m)
Longest span50 ft (15.2 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,192 (2021)
Projected traffic13,411 by 2041
Trucks18%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US0090 over Off Ramp I built?

It was built in 1980, making it 45 years old in 2025.

What condition is US0090 over Off Ramp I in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does US0090 over Off Ramp I carry?

About 12,192 vehicles per day (2021 count), of which roughly 18% are trucks.

How long is US0090 over Off Ramp I?

The structure is 440 ft (134.1 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.

Who owns US0090 over Off Ramp I?

It is owned by the State Highway Agency.