US Bridges

US0090/RAMP over Delahoussaye Canal

Fair

Iberia Parish, Louisiana · 3.33 MI SE of LA 85 · Structure no. 032304240420407

Built
1971
54 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete
Length
100 ft
5 main spans
Daily traffic
2,629
2021 count
Owner
State
State Highway Agency

About this bridge

US0090/RAMP over Delahoussaye Canal is a concrete slab carrying US0090/RAMP over Delahoussaye Canal in Iberia Parish, Louisiana. It was built in 1971, so it is 54 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 2,629 vehicles a day, roughly 24% of them trucks, projected to reach 2,891 by 2041. The structure is 100 ft (30.5 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS0090/RAMP
CrossesDelahoussaye Canal
Location3.33 MI SE of LA 85
RouteU.S. Route 90
CountyIberia Parish
StateLouisiana
Coordinates29.89098, -91.6844
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating48 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span20 ft (6.1 m)
Deck width55 ft (16.9 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,629 (2021)
Projected traffic2,891 by 2041
Trucks24%
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 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 Delahoussaye Canal built?

It was built in 1971, making it 54 years old in 2025.

What condition is US0090/RAMP over Delahoussaye Canal 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 Delahoussaye Canal carry?

About 2,629 vehicles per day (2021 count), of which roughly 24% are trucks.

How long is US0090/RAMP over Delahoussaye Canal?

The structure is 100 ft (30.5 m) long with a longest span of 20 ft (6.1 m) and a deck 55 ft wide.

Who owns US0090/RAMP over Delahoussaye Canal?

It is owned by the State Highway Agency.