US Bridges

US0090 over Tiger Bayou

Fair

Terrebonne Parish, Louisiana · 3.95 MI East of LA 662 · Structure no. 025504240703952

Built
1998
27 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete
Length
160 ft
4 main spans
Daily traffic
3,007
2021 count
Owner
State
State Highway Agency

About this bridge

US0090 over Tiger Bayou is a concrete slab carrying US0090 over Tiger Bayou in Terrebonne Parish, Louisiana. It was built in 1998, so it is 27 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 3,007 vehicles a day, roughly 18% of them trucks, projected to reach 3,307 by 2041. The structure is 160 ft (48.8 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS0090
CrossesTiger Bayou
Location3.95 MI East of LA 662
RouteU.S. Route 90
CountyTerrebonne Parish
StateLouisiana
Coordinates29.69046, -90.9902
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating71 US tons
Inventory rating42 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span40 ft (12.2 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,007 (2021)
Projected traffic3,307 by 2041
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US0090 over Tiger Bayou built?

It was built in 1998, making it 27 years old in 2025.

What condition is US0090 over Tiger 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 April 2024.

How much traffic does US0090 over Tiger Bayou carry?

About 3,007 vehicles per day (2021 count), of which roughly 18% are trucks.

How long is US0090 over Tiger Bayou?

The structure is 160 ft (48.8 m) long with a longest span of 40 ft (12.2 m) and a deck 43 ft wide.

Who owns US0090 over Tiger Bayou?

It is owned by the State Highway Agency.