US Bridges

LA0442 over Parker Bayou

Fair

Tangipahoa Parish, Louisiana · LA0442 · Structure no. 625302690402041

Built
1963
62 years old
Condition
Fair
inspected April 2023
Type
Slab
Concrete
Length
100 ft
5 main spans
Daily traffic
5,026
2021 count
Owner
State
State Highway Agency

About this bridge

LA0442 over Parker Bayou is a concrete slab carrying LA0442 over Parker Bayou 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 100 ft (30.5 m) long and 29 ft wide.

Location

Open in Google Maps
CarriesLA0442
CrossesParker Bayou
LocationLA0442
RouteState Highway 442
CountyTangipahoa Parish
StateLouisiana
Coordinates30.57739, -90.5327
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating40 US tons
Inventory rating24 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span20 ft (6.1 m)
Deck width29 ft (8.9 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 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$498,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0442 over Parker Bayou built?

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

What condition is LA0442 over Parker Bayou 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 Parker Bayou carry?

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

How long is LA0442 over Parker Bayou?

The structure is 100 ft (30.5 m) long with a longest span of 20 ft (6.1 m) and a deck 29 ft wide.

Who owns LA0442 over Parker Bayou?

It is owned by the State Highway Agency.