US Bridges

I0055 over Drain

Fair

Tangipahoa Parish, Louisiana · 3.8 M N of LA 38 · Structure no. 625304529051171

Built
1966
59 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete
Length
38 ft
3 main spans
Daily traffic
21,762
2021 count
Owner
State
State Highway Agency

About this bridge

I0055 over Drain is a concrete culvert carrying I0055 over Drain in Tangipahoa Parish, Louisiana. It was built in 1966, so it is 59 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 21,762 vehicles a day, roughly 25% of them trucks, projected to reach 23,938 by 2041. The structure is 38 ft (11.6 m) long and 270 ft wide.

CarriesI0055
CrossesDrain
Location3.8 M N of LA 38
RouteInterstate 55
Coordinates30.99396, -90.50688
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 protection7 GoodSome minor problems.
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 adequacy7: Better than 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 spans3
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span12 ft (3.7 m)
Deck width270 ft (82.3 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,762 (2021)
Projected traffic23,938 by 2041
Trucks25%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I0055 over Drain built?

It was built in 1966, making it 59 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 21,762 vehicles per day (2021 count), of which roughly 25% are trucks.

How long is I0055 over Drain?

The structure is 38 ft (11.6 m) long with a longest span of 12 ft (3.7 m) and a deck 270 ft wide.

Who owns I0055 over Drain?

It is owned by the State Highway Agency.