US Bridges

Palmisano Blvd over 20 Arpent Canal

Fair

St. Bernard Parish, Louisiana · 0.3 Mi. N. of LA 39 · Structure no. 024400000024405

Built
2017
8 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete
Length
66 ft
3 main spans
Daily traffic
2,440
2024 count
Owner
County
County Highway Agency

About this bridge

Palmisano Blvd over 20 Arpent Canal is a concrete slab carrying Palmisano Blvd over 20 Arpent Canal in St. Bernard Parish, Louisiana. It was built in 2017, so it is 8 years old, younger 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 2,440 vehicles a day, roughly 1% of them trucks, projected to reach 2,684 by 2044. The structure is 66 ft (20.1 m) long and 71 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesPalmisano Blvd
Crosses20 Arpent Canal
Location0.3 Mi. N. of LA 39
RouteCounty Highway 0
CountySt. Bernard Parish
StateLouisiana
Coordinates29.94336, -89.94996
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating87.2 US tons
Inventory rating61.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadGreater than HL 93
Structure length66 ft (20.1 m)
Longest span26 ft (7.9 m)
Deck width71 ft (21.7 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,440 (2024)
Projected traffic2,684 by 2044
Trucks1%
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 Palmisano Blvd over 20 Arpent Canal built?

It was built in 2017, making it 8 years old in 2025.

What condition is Palmisano Blvd over 20 Arpent 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 March 2023.

How much traffic does Palmisano Blvd over 20 Arpent Canal carry?

About 2,440 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Palmisano Blvd over 20 Arpent Canal?

The structure is 66 ft (20.1 m) long with a longest span of 26 ft (7.9 m) and a deck 71 ft wide.

Who owns Palmisano Blvd over 20 Arpent Canal?

It is owned by the County Highway Agency.