US Bridges

LA0442 over Natalbany River

Fair

Tangipahoa Parish, Louisiana · LA0442 · Structure no. 625302690402891

Built
1963
62 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
250 ft
1 main span
Daily traffic
5,026
2021 count
Owner
State
State Highway Agency

About this bridge

LA0442 over Natalbany River is a steel stringer/multi-beam or girder carrying LA0442 over Natalbany River in Tangipahoa Parish, Louisiana. It was built in 1963, so it is 62 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 5,026 vehicles a day, roughly 9% of them trucks, projected to reach 5,528 by 2041. The structure is 250 ft (76.2 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesLA0442
CrossesNatalbany River
LocationLA0442
RouteState Highway 442
CountyTangipahoa Parish
StateLouisiana
Coordinates30.57717, -90.5189
Functional classUrban 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.
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
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating28 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+10 approach)
Design loadHS 20
Structure length250 ft (76.2 m)
Longest span50 ft (15.2 m)
Deck width30 ft (9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,026 (2021)
Projected traffic5,528 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0442 over Natalbany River built?

It was built in 1963, making it 62 years old in 2025.

What condition is LA0442 over Natalbany 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 April 2023.

How much traffic does LA0442 over Natalbany River carry?

About 5,026 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is LA0442 over Natalbany River?

The structure is 250 ft (76.2 m) long with a longest span of 50 ft (15.2 m) and a deck 30 ft wide.

Who owns LA0442 over Natalbany River?

It is owned by the State Highway Agency.