US Bridges

Plaza Dr. over 20 Arpent Canal

Good

St. Bernard Parish, Louisiana · 0.4 MI N of LA 39 · Structure no. 024400000000101

Built
2014
11 years old
Condition
Good
inspected February 2023
Type
Slab
Concrete
Length
52 ft
3 main spans
Daily traffic
1,073
2024 count
Owner
County
County Highway Agency

About this bridge

Plaza Dr. over 20 Arpent Canal is a concrete slab carrying Plaza Dr. over 20 Arpent Canal in St. Bernard Parish, Louisiana. It was built in 2014, so it is 11 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 1,073 vehicles a day, projected to reach 1,180 by 2044. The structure is 52 ft (15.8 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesPlaza Dr.
Crosses20 Arpent Canal
Location0.4 MI N of LA 39
RouteCounty Highway 0
CountySt. Bernard Parish
StateLouisiana
Coordinates29.94445, -89.95379
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59.6 US tons
Inventory rating46.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadGreater than HL 93
Structure length52 ft (15.8 m)
Longest span24 ft (7.3 m)
Deck width32 ft (9.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,073 (2024)
Projected traffic1,180 by 2044
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 Plaza Dr. over 20 Arpent Canal built?

It was built in 2014, making it 11 years old in 2025.

What condition is Plaza Dr. over 20 Arpent 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 February 2023.

How much traffic does Plaza Dr. over 20 Arpent Canal carry?

About 1,073 vehicles per day (2024 count).

How long is Plaza Dr. over 20 Arpent Canal?

The structure is 52 ft (15.8 m) long with a longest span of 24 ft (7.3 m) and a deck 32 ft wide.

Who owns Plaza Dr. over 20 Arpent Canal?

It is owned by the County Highway Agency.