US Bridges

US0090 over West Lacassine Bayou

Fair

Jefferson Davis Parish, Louisiana · 0.8 Mi. E. of LA 101 · Structure no. 072700030604921

Built
1991
34 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete
Length
100 ft
5 main spans
Daily traffic
5,020
2021 count
Owner
State
State Highway Agency

About this bridge

US0090 over West Lacassine Bayou is a concrete slab carrying US0090 over West Lacassine Bayou in Jefferson Davis Parish, Louisiana. It was built in 1991, so it is 34 years old, younger 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 5,020 vehicles a day, roughly 18% of them trucks, projected to reach 5,522 by 2041. The structure is 100 ft (30.5 m) long and 47 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesUS0090
CrossesWest Lacassine Bayou
Location0.8 Mi. E. of LA 101
RouteU.S. Route 90
CountyJefferson Davis Parish
StateLouisiana
Coordinates30.23153, -92.91458
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating47 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span20 ft (6.1 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,020 (2021)
Projected traffic5,522 by 2041
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
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 West Lacassine Bayou built?

It was built in 1991, making it 34 years old in 2025.

What condition is US0090 over West Lacassine Bayou 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 January 2024.

How much traffic does US0090 over West Lacassine Bayou carry?

About 5,020 vehicles per day (2021 count), of which roughly 18% are trucks.

How long is US0090 over West Lacassine Bayou?

The structure is 100 ft (30.5 m) long with a longest span of 20 ft (6.1 m) and a deck 47 ft wide.

Who owns US0090 over West Lacassine Bayou?

It is owned by the State Highway Agency.