US Bridges

LA0443 over Tangipahoa River Relief

Good

Tangipahoa Parish, Louisiana · 1.2 MI NE of LA 1064 · Structure no. 625308532705701

Built
1986
39 years old
Condition
Good
inspected April 2023
Type
Slab
Concrete
Length
140 ft
7 main spans
Daily traffic
6,478
2021 count
Owner
State
State Highway Agency

About this bridge

LA0443 over Tangipahoa River Relief is a concrete slab carrying LA0443 over Tangipahoa River Relief in Tangipahoa Parish, Louisiana. It was built in 1986, so it is 39 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 6,478 vehicles a day, roughly 12% of them trucks, projected to reach 7,125 by 2041. The structure is 140 ft (42.7 m) long and 43 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesLA0443
CrossesTangipahoa River Relief
Location1.2 MI NE of LA 1064
RouteState Highway 443
CountyTangipahoa Parish
StateLouisiana
Coordinates30.57202, -90.3973
Functional classRural Major 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.
Substructure8 Very GoodNo problems noted.
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 evaluation7: Better than present minimum criteria
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 rating75 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length140 ft (42.7 m)
Longest span20 ft (6.1 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,478 (2021)
Projected traffic7,125 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was LA0443 over Tangipahoa River Relief built?

It was built in 1986, making it 39 years old in 2025.

What condition is LA0443 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 LA0443 over Tangipahoa River Relief carry?

About 6,478 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is LA0443 over Tangipahoa River Relief?

The structure is 140 ft (42.7 m) long with a longest span of 20 ft (6.1 m) and a deck 43 ft wide.

Who owns LA0443 over Tangipahoa River Relief?

It is owned by the State Highway Agency.