US Bridges

US0090/RAMP over Choupique Bayou

Fair

St. Mary Parish, Louisiana · 0.6 MI N of LA 83 · Structure no. 035104240507375

Built
1978
47 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete Continuous
Length
197 ft
10 main spans
Daily traffic
12,192
2021 count
Owner
State
State Highway Agency

About this bridge

US0090/RAMP over Choupique Bayou is a concrete continuous slab carrying US0090/RAMP over Choupique Bayou in St. Mary Parish, Louisiana. It was built in 1978, so it is 47 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 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 12,192 vehicles a day, roughly 14% of them trucks, projected to reach 13,411 by 2041. The structure is 197 ft (60 m) long and 28 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesUS0090/RAMP
CrossesChoupique Bayou
Location0.6 MI N of LA 83
RouteU.S. Route 90
CountySt. Mary Parish
StateLouisiana
Coordinates29.83628, -91.56783
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length197 ft (60 m)
Longest span20 ft (6.1 m)
Deck width28 ft (8.6 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,192 (2021)
Projected traffic13,411 by 2041
Trucks14%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US0090/RAMP over Choupique Bayou built?

It was built in 1978, making it 47 years old in 2025.

What condition is US0090/RAMP over Choupique 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 November 2023.

How much traffic does US0090/RAMP over Choupique Bayou carry?

About 12,192 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is US0090/RAMP over Choupique Bayou?

The structure is 197 ft (60 m) long with a longest span of 20 ft (6.1 m) and a deck 28 ft wide.

Who owns US0090/RAMP over Choupique Bayou?

It is owned by the State Highway Agency.