US Bridges

LA1054 over Tangipahoa River Relief

Good

Tangipahoa Parish, Louisiana · 1.23 Miles East of JCT US · Structure no. 625308530101231

Built
2008
17 years old
Condition
Good
inspected April 2023
Type
Slab
Concrete
Length
180 ft
9 main spans
Daily traffic
1,235
2021 count
Owner
State
State Highway Agency

About this bridge

LA1054 over Tangipahoa River Relief is a concrete slab carrying LA1054 over Tangipahoa River Relief in Tangipahoa Parish, Louisiana. It was built in 2008, so it is 17 years old, younger 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 1,235 vehicles a day, roughly 13% of them trucks, projected to reach 1,358 by 2041. The structure is 180 ft (54.9 m) long and 43 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesLA1054
CrossesTangipahoa River Relief
Location1.23 Miles East of JCT US
RouteState Highway 1054
CountyTangipahoa Parish
StateLouisiana
Coordinates30.97984, -90.4657
Functional classRural Minor 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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.7 US tons
Inventory rating42.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length180 ft (54.9 m)
Longest span20 ft (6.1 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,235 (2021)
Projected traffic1,358 by 2041
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed24.9 mi (40 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA1054 over Tangipahoa River Relief built?

It was built in 2008, making it 17 years old in 2025.

What condition is LA1054 over Tangipahoa River Relief 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 April 2023.

How much traffic does LA1054 over Tangipahoa River Relief carry?

About 1,235 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is LA1054 over Tangipahoa River Relief?

The structure is 180 ft (54.9 m) long with a longest span of 20 ft (6.1 m) and a deck 43 ft wide.

Who owns LA1054 over Tangipahoa River Relief?

It is owned by the State Highway Agency.