US Bridges

LA0038 over Tangipahoa River

Fair

Tangipahoa Parish, Louisiana · LA0038 · Structure no. 625302630401171

Built
1974
51 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
452 ft
10 main spans
Daily traffic
3,120
2021 count
Owner
State
State Highway Agency

About this bridge

LA0038 over Tangipahoa River is a prestressed concrete stringer/multi-beam or girder carrying LA0038 over Tangipahoa River in Tangipahoa Parish, Louisiana. It was built in 1974, so it is 51 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 3,120 vehicles a day, roughly 12% of them trucks, projected to reach 3,432 by 2041. The structure is 452 ft (137.8 m) long and 43 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

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CarriesLA0038
CrossesTangipahoa River
LocationLA0038
RouteState Highway 38
CountyTangipahoa Parish
StateLouisiana
Coordinates30.93797, -90.491
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length452 ft (137.8 m)
Longest span45 ft (13.7 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,120 (2021)
Projected traffic3,432 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 km)
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 LA0038 over Tangipahoa River built?

It was built in 1974, making it 51 years old in 2025.

What condition is LA0038 over Tangipahoa River 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 March 2023.

How much traffic does LA0038 over Tangipahoa River carry?

About 3,120 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is LA0038 over Tangipahoa River?

The structure is 452 ft (137.8 m) long with a longest span of 45 ft (13.7 m) and a deck 43 ft wide.

Who owns LA0038 over Tangipahoa River?

It is owned by the State Highway Agency.