US Bridges

US0090 over Folse Bayou

Good

Lafourche Parish, Louisiana · 2.2 MI East of LA 182 · Structure no. 022904240808884

Built
1984
41 years old
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
650 ft
14 main spans
Daily traffic
189
2021 count
Owner
State
State Highway Agency

About this bridge

US0090 over Folse Bayou is a prestressed concrete continuous stringer/multi-beam or girder carrying US0090 over Folse Bayou in Lafourche Parish, Louisiana. It was built in 1984, so it is 41 years old, younger 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 189 vehicles a day, roughly 13% of them trucks, projected to reach 207 by 2041. The structure is 650 ft (198.1 m) long and 33 ft wide.

CarriesUS0090
CrossesFolse Bayou
Location2.2 MI East of LA 182
RouteU.S. Route 90
Coordinates29.69056, -90.6058
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans14
Design loadHS 20
Structure length650 ft (198.1 m)
Longest span50 ft (15.2 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic189 (2021)
Projected traffic207 by 2041
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US0090 over Folse Bayou built?

It was built in 1984, making it 41 years old in 2025.

What condition is US0090 over Folse Bayou 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 February 2023.

How much traffic does US0090 over Folse Bayou carry?

About 189 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is US0090 over Folse Bayou?

The structure is 650 ft (198.1 m) long with a longest span of 50 ft (15.2 m) and a deck 33 ft wide.

Who owns US0090 over Folse Bayou?

It is owned by the State Highway Agency.