US Bridges

Severn Ave over Canal No 4

Good

Jefferson Parish, Louisiana · 1.5 MI W of Causeway · Structure no. 022629595900951

Built
1979
46 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
26 ft
3 main spans
Daily traffic
20,000
1989 count
Owner
County
County Highway Agency

About this bridge

Severn Ave over Canal No 4 is a concrete culvert carrying Severn Ave over Canal No 4 in Jefferson Parish, Louisiana. It was built in 1979, so it is 46 years old, older 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 20,000 vehicles a day, projected to reach 22,000 by 2009. The structure is 26 ft (7.9 m) long and 75 ft wide.

CarriesSevern Ave
CrossesCanal No 4
Location1.5 MI W of Causeway
RouteCounty Highway 0
Coordinates29.99244, -90.15996
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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span8 ft (2.4 m)
Deck width75 ft (22.9 m)
Roadway width52 ft (16 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,000 (1989)
Projected traffic22,000 by 2009
Trucks—
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Severn Ave over Canal No 4 built?

It was built in 1979, making it 46 years old in 2025.

What condition is Severn 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 Severn Ave over Canal No 4 carry?

About 20,000 vehicles per day (1989 count).

How long is Severn Ave over Canal No 4?

The structure is 26 ft (7.9 m) long with a longest span of 8 ft (2.4 m) and a deck 75 ft wide.

Who owns Severn Ave over Canal No 4?

It is owned by the County Highway Agency.