US Bridges

I0055 Frontage RD over Ponchatoula Cr.

Good

Tangipahoa Parish, Louisiana · I0055 · Structure no. 625304529013204

Built
1960
65 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
242 ft
6 main spans
Daily traffic
988
2021 count
Owner
State
State Highway Agency

About this bridge

I0055 Frontage RD over Ponchatoula Cr. is a steel stringer/multi-beam or girder carrying I0055 Frontage RD over Ponchatoula Cr. in Tangipahoa Parish, Louisiana. It was built in 1960, so it is 65 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 988 vehicles a day, roughly 9% of them trucks, projected to reach 1,086 by 2041. The structure is 242 ft (73.8 m) long and 30 ft wide.

Location

Open in Google Maps
CarriesI0055 Frontage RD
CrossesPonchatoula Cr.
LocationI0055
RouteInterstate 55
CountyTangipahoa Parish
StateLouisiana
Coordinates30.45526, -90.4729
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length242 ft (73.8 m)
Longest span40 ft (12.2 m)
Deck width30 ft (9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic988 (2021)
Projected traffic1,086 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

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 Frontage RD over Ponchatoula Cr. built?

It was built in 1960, making it 65 years old in 2025.

What condition is I0055 Frontage RD over Ponchatoula Cr. 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 January 2025.

How much traffic does I0055 Frontage RD over Ponchatoula Cr. carry?

About 988 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is I0055 Frontage RD over Ponchatoula Cr.?

The structure is 242 ft (73.8 m) long with a longest span of 40 ft (12.2 m) and a deck 30 ft wide.

Who owns I0055 Frontage RD over Ponchatoula Cr.?

It is owned by the State Highway Agency.