US Bridges

W. Napolean Ave over Canal No. 4

Good

Jefferson Parish, Louisiana · 0.1 E of Transcontinental · Structure no. 022629597901151

Built
1995
30 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
29 ft
3 main spans
Daily traffic
20,800
1992 count
Owner
County
County Highway Agency

About this bridge

W. Napolean Ave over Canal No. 4 is a concrete culvert carrying W. Napolean Ave over Canal No. 4 in Jefferson Parish, Louisiana. It was built in 1995, so it is 30 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 20,800 vehicles a day, projected to reach 22,880 by 2012. The structure is 29 ft (8.8 m) long and 266 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesW. Napolean Ave
CrossesCanal No. 4
Location0.1 E of Transcontinental
RouteCounty Highway 0
CountyJefferson Parish
StateLouisiana
Coordinates29.99444, -90.19094
Functional classRural 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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable 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 spans3
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span9 ft (2.7 m)
Deck width266 ft (81.1 m)
Roadway width65 ft (19.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,800 (1992)
Projected traffic22,880 by 2012
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was W. Napolean Ave over Canal No. 4 built?

It was built in 1995, making it 30 years old in 2025.

What condition is W. Napolean Ave over Canal No. 4 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 April 2023.

How much traffic does W. Napolean Ave over Canal No. 4 carry?

About 20,800 vehicles per day (1992 count).

How long is W. Napolean Ave over Canal No. 4?

The structure is 29 ft (8.8 m) long with a longest span of 9 ft (2.7 m) and a deck 266 ft wide.

Who owns W. Napolean Ave over Canal No. 4?

It is owned by the County Highway Agency.