US Bridges

US0090 over Cypress Bayou

Good

Lafayette Parish, Louisiana · 0.2 MI North Ofla 92 · Structure no. 032804240212431

Built
1965
60 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
31 ft
4 main spans
Daily traffic
62,432
2021 count
Owner
State
State Highway Agency

About this bridge

US0090 over Cypress Bayou is a concrete culvert carrying US0090 over Cypress Bayou in Lafayette Parish, Louisiana. It was built in 1965, so it is 60 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 62,432 vehicles a day, roughly 10% of them trucks, projected to reach 68,675 by 2041. The structure is 31 ft (9.4 m) long and 143 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesUS0090
CrossesCypress Bayou
Location0.2 MI North Ofla 92
RouteU.S. Route 90
Coordinates30.10255, -91.94188
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span7 ft (2.1 m)
Deck width143 ft (43.6 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic62,432 (2021)
Projected traffic68,675 by 2041
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 over Cypress Bayou built?

It was built in 1965, making it 60 years old in 2025.

What condition is US0090 over Cypress Bayou 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 June 2024.

How much traffic does US0090 over Cypress Bayou carry?

About 62,432 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is US0090 over Cypress Bayou?

The structure is 31 ft (9.4 m) long with a longest span of 7 ft (2.1 m) and a deck 143 ft wide.

Who owns US0090 over Cypress Bayou?

It is owned by the State Highway Agency.