US Bridges

I0055 over Icg Railroad

Fair

Tangipahoa Parish, Louisiana · I0055 · Structure no. 625304529017041

Built
1968
57 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
167 ft
3 main spans
Daily traffic
36,311
2021 count
Owner
State
State Highway Agency

About this bridge

I0055 over Icg Railroad is a prestressed concrete stringer/multi-beam or girder carrying I0055 over Icg Railroad in Tangipahoa Parish, Louisiana. It was built in 1968, so it is 57 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 36,311 vehicles a day, roughly 26% of them trucks, projected to reach 39,942 by 2041. The structure is 167 ft (50.9 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI0055
CrossesIcg Railroad
LocationI0055
RouteInterstate 55
CountyTangipahoa Parish
StateLouisiana
Coordinates30.50536, -90.5035
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating60 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length167 ft (50.9 m)
Longest span55 ft (16.8 m)
Deck width45 ft (13.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36,311 (2021)
Projected traffic39,942 by 2041
Trucks26%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$768,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was I0055 over Icg Railroad built?

It was built in 1968, making it 57 years old in 2025.

What condition is I0055 over Icg Railroad 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 Icg Railroad carry?

About 36,311 vehicles per day (2021 count), of which roughly 26% are trucks.

How long is I0055 over Icg Railroad?

The structure is 167 ft (50.9 m) long with a longest span of 55 ft (16.8 m) and a deck 45 ft wide.

Who owns I0055 over Icg Railroad?

It is owned by the State Highway Agency.