US Bridges

LA0044 over Boyle Bayou

Good

Ascension Parish, Louisiana · 1.00 MI N JCT I-10 · Structure no. 610302650104311

Built
1980
45 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
13,914
2021 count
Owner
State
State Highway Agency

About this bridge

LA0044 over Boyle Bayou is a concrete culvert carrying LA0044 over Boyle Bayou in Ascension Parish, Louisiana. It was built in 1980, so it is 45 years old, older 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 13,914 vehicles a day, roughly 9% of them trucks, projected to reach 15,305 by 2041. The structure is 21 ft (6.4 m) long and 132 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesLA0044
CrossesBoyle Bayou
Location1.00 MI N JCT I-10
RouteState Highway 44
Coordinates30.19847, -90.92032
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width132 ft (40.2 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,914 (2021)
Projected traffic15,305 by 2041
Trucks9%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemYes

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 LA0044 over Boyle Bayou built?

It was built in 1980, making it 45 years old in 2025.

What condition is LA0044 over Boyle Bayou 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 September 2023.

How much traffic does LA0044 over Boyle Bayou carry?

About 13,914 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is LA0044 over Boyle Bayou?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 132 ft wide.

Who owns LA0044 over Boyle Bayou?

It is owned by the State Highway Agency.