US Bridges

LA0442 over Tangipahoa River

Good

Tangipahoa Parish, Louisiana · 3.45 Mi. E. of US 51 · Structure no. 625300000620337

Built
2019
6 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
450 ft
6 main spans
Daily traffic
1,762
2021 count
Owner
State
State Highway Agency

About this bridge

LA0442 over Tangipahoa River is a concrete stringer/multi-beam or girder carrying LA0442 over Tangipahoa River in Tangipahoa Parish, Louisiana. It was built in 2019, so it is 6 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,762 vehicles a day, roughly 14% of them trucks, projected to reach 1,938 by 2041. The structure is 450 ft (137.2 m) long and 34 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesLA0442
CrossesTangipahoa River
Location3.45 Mi. E. of US 51
RouteState Highway 442
CountyTangipahoa Parish
StateLouisiana
Coordinates30.6022, -90.4391
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.8 US tons
Inventory rating57.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadGreater than HL 93
Structure length450 ft (137.2 m)
Longest span75 ft (22.9 m)
Deck width34 ft (10.5 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,762 (2021)
Projected traffic1,938 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 LA0442 over Tangipahoa River built?

It was built in 2019, making it 6 years old in 2025.

What condition is LA0442 over Tangipahoa River 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 LA0442 over Tangipahoa River carry?

About 1,762 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA0442 over Tangipahoa River?

The structure is 450 ft (137.2 m) long with a longest span of 75 ft (22.9 m) and a deck 34 ft wide.

Who owns LA0442 over Tangipahoa River?

It is owned by the State Highway Agency.