US Bridges

LA0023 over Algiers Outfall Canal

Fair

Plaquemines Parish, Louisiana · 3.2 MI SE of Westbank Exp · Structure no. 023800620200061

Built
1968
57 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete
Length
200 ft
10 main spans
Daily traffic
25,594
2021 count
Owner
State
State Highway Agency

About this bridge

LA0023 over Algiers Outfall Canal is a concrete slab carrying LA0023 over Algiers Outfall Canal in Plaquemines Parish, Louisiana. It was built in 1968, so it is 57 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 25,594 vehicles a day, roughly 10% of them trucks, projected to reach 28,153 by 2041. The structure is 200 ft (61 m) long and 33 ft wide.

Location

Open in Google Maps
CarriesLA0023
CrossesAlgiers Outfall Canal
Location3.2 MI SE of Westbank Exp
RouteState Highway 23
CountyPlaquemines Parish
StateLouisiana
Coordinates29.87765, -90.0165
Functional classUrban Other Principal Arterial

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length200 ft (61 m)
Longest span20 ft (6.1 m)
Deck width33 ft (10.2 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,594 (2021)
Projected traffic28,153 by 2041
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$897,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0023 over Algiers Outfall Canal built?

It was built in 1968, making it 57 years old in 2025.

What condition is LA0023 over Algiers Outfall Canal 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 October 2023.

How much traffic does LA0023 over Algiers Outfall Canal carry?

About 25,594 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is LA0023 over Algiers Outfall Canal?

The structure is 200 ft (61 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.

Who owns LA0023 over Algiers Outfall Canal?

It is owned by the State Highway Agency.