US Bridges

LA1054 over Tangipahoa R. Relief

Fair

Tangipahoa Parish, Louisiana · 0.8 M E of US 51 · Structure no. 625308530100861

Built
1983
42 years old
Condition
Fair
inspected April 2023
Type
Slab
Concrete
Length
115 ft
6 main spans
Daily traffic
1,235
2021 count
Owner
State
State Highway Agency

About this bridge

LA1054 over Tangipahoa R. Relief is a concrete slab carrying LA1054 over Tangipahoa R. Relief in Tangipahoa Parish, Louisiana. It was built in 1983, so it is 42 years old, younger 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 5 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 1,235 vehicles a day, roughly 13% of them trucks, projected to reach 1,358 by 2041. The structure is 115 ft (35.1 m) long and 35 ft wide.

Location

Open in Google Maps
CarriesLA1054
CrossesTangipahoa R. Relief
Location0.8 M E of US 51
RouteState Highway 1054
CountyTangipahoa Parish
StateLouisiana
Coordinates30.98027, -90.4716
Functional classRural Minor Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans6
Design loadHS 20
Structure length115 ft (35.1 m)
Longest span19 ft (5.8 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 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
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 LA1054 over Tangipahoa R. Relief built?

It was built in 1983, making it 42 years old in 2025.

What condition is LA1054 over Tangipahoa R. Relief 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 April 2023.

How much traffic does LA1054 over Tangipahoa R. Relief carry?

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

How long is LA1054 over Tangipahoa R. Relief?

The structure is 115 ft (35.1 m) long with a longest span of 19 ft (5.8 m) and a deck 35 ft wide.

Who owns LA1054 over Tangipahoa R. Relief?

It is owned by the State Highway Agency.