US Bridges

US0090 over Bayou Terrebonne

Good

Terrebonne Parish, Louisiana · .2 MI East of LA 24 · Structure no. 025504240716753

Built
1980
45 years old
Condition
Good
inspected February 2024
Type
Slab
Concrete
Length
100 ft
4 main spans
Daily traffic
2,280
2016 count
Owner
State
State Highway Agency

About this bridge

US0090 over Bayou Terrebonne is a concrete slab carrying US0090 over Bayou Terrebonne in Terrebonne Parish, Louisiana. It was built in 1980, so it is 45 years old, older 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 2,280 vehicles a day, roughly 13% of them trucks, projected to reach 2,508 by 2036. The structure is 100 ft (30.5 m) long and 43 ft wide.

Location

Open in Google Maps
CarriesUS0090
CrossesBayou Terrebonne
Location.2 MI East of LA 24
RouteU.S. Route 90
CountyTerrebonne Parish
StateLouisiana
Coordinates29.67893, -90.7831
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.8 US tons
Inventory rating23.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span25 ft (7.6 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deck17 ft (5.3 m)

Traffic and service

Average daily traffic2,280 (2016)
Projected traffic2,508 by 2036
Trucks13%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 over Bayou Terrebonne built?

It was built in 1980, making it 45 years old in 2025.

What condition is US0090 over Bayou Terrebonne 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 2024.

How much traffic does US0090 over Bayou Terrebonne carry?

About 2,280 vehicles per day (2016 count), of which roughly 13% are trucks.

How long is US0090 over Bayou Terrebonne?

The structure is 100 ft (30.5 m) long with a longest span of 25 ft (7.6 m) and a deck 43 ft wide.

Who owns US0090 over Bayou Terrebonne?

It is owned by the State Highway Agency.