US Bridges

Allo ST over Patriot Canal

Good

Jefferson Parish, Louisiana · 0.5 MI E of LA 45 · Structure no. 022600000022609

Built
2015
10 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
42 ft
2 main spans
Daily traffic
60
2023 count
Owner
County
County Highway Agency

About this bridge

Allo ST over Patriot Canal is a concrete culvert carrying Allo ST over Patriot Canal in Jefferson Parish, Louisiana. It was built in 2015, so it is 10 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 60 vehicles a day, projected to reach 66 by 2043. The structure is 42 ft (12.8 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesAllo ST
CrossesPatriot Canal
Location0.5 MI E of LA 45
RouteCounty Highway 0
CountyJefferson Parish
StateLouisiana
Coordinates29.88249, -90.09004
Functional classUrban Local

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 protection9 ExcellentNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating107.1 US tons
Inventory rating82.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length42 ft (12.8 m)
Longest span20 ft (6.1 m)
Deck width46 ft (13.9 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2023)
Projected traffic66 by 2043
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Allo ST over Patriot Canal built?

It was built in 2015, making it 10 years old in 2025.

What condition is Allo ST over Patriot Canal 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 May 2023.

How much traffic does Allo ST over Patriot Canal carry?

About 60 vehicles per day (2023 count).

How long is Allo ST over Patriot Canal?

The structure is 42 ft (12.8 m) long with a longest span of 20 ft (6.1 m) and a deck 46 ft wide.

Who owns Allo ST over Patriot Canal?

It is owned by the County Highway Agency.