US Bridges

I0055 over Drain

Fair

Tangipahoa Parish, Louisiana · Beginning of Elevated HWY · Structure no. 625304529008548

Built
1978
47 years old
Condition
Fair
inspected January 2025
Type
Culvert
Steel
Length
34 ft
Daily traffic
402
2021 count
Owner
State
State Highway Agency

About this bridge

I0055 over Drain is a steel culvert carrying I0055 over Drain in Tangipahoa Parish, Louisiana. It was built in 1978, so it is 47 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 402 vehicles a day, roughly 25% of them trucks, projected to reach 442 by 2041. The structure is 34 ft (10.4 m) long and 75 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesI0055
CrossesDrain
LocationBeginning of Elevated HWY
RouteInterstate 55
Coordinates30.4005, -90.4313
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating82.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans0
Design loadH 10
Structure length34 ft (10.4 m)
Longest span0 ft (0 m)
Deck width75 ft (22.9 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic402 (2021)
Projected traffic442 by 2041
Trucks25%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I0055 over Drain built?

It was built in 1978, making it 47 years old in 2025.

What condition is I0055 over Drain 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 January 2025.

How much traffic does I0055 over Drain carry?

About 402 vehicles per day (2021 count), of which roughly 25% are trucks.

How long is I0055 over Drain?

The structure is 34 ft (10.4 m) long and a deck 75 ft wide.

Who owns I0055 over Drain?

It is owned by the State Highway Agency.