US Bridges

US0090 over Deadwood RD Tiger Bayou

Fair

Terrebonne Parish, Louisiana · .04 MI East of LA 3052 · Structure no. 025504240706351

Built
1994
31 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
7,703 ft
107 main spans
Daily traffic
4,014
2021 count
Owner
State
State Highway Agency

About this bridge

US0090 over Deadwood RD Tiger Bayou is a prestressed concrete stringer/multi-beam or girder carrying US0090 over Deadwood RD Tiger Bayou in Terrebonne Parish, Louisiana. It was built in 1994, so it is 31 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 4,014 vehicles a day, roughly 18% of them trucks, projected to reach 4,415 by 2041. The structure is 7,703 ft (2,347.9 m) long and 43 ft wide.

CarriesUS0090
CrossesDeadwood RD Tiger Bayou
Location.04 MI East of LA 3052
RouteU.S. Route 90
Coordinates29.6918, -90.979
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 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 rating61 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans107 (+11 approach)
Design loadHS 20
Structure length7,703 ft (2,347.9 m)
Longest span70 ft (21.3 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,014 (2021)
Projected traffic4,415 by 2041
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed—
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 Deadwood RD Tiger Bayou built?

It was built in 1994, making it 31 years old in 2025.

What condition is US0090 over Deadwood RD 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 October 2023.

How much traffic does US0090 over Deadwood RD Tiger Bayou carry?

About 4,014 vehicles per day (2021 count), of which roughly 18% are trucks.

How long is US0090 over Deadwood RD Tiger Bayou?

The structure is 7,703 ft (2,347.9 m) long with a longest span of 70 ft (21.3 m) and a deck 43 ft wide.

Who owns US0090 over Deadwood RD Tiger Bayou?

It is owned by the State Highway Agency.