US Bridges

Gretna Blvd over Drainage Canal

Fair

Jefferson Parish, Louisiana · 0.2 MI N of LA 23 · Structure no. 022600000000041

Built
2004
21 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
37 ft
1 main span
Daily traffic
2,500
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

Gretna Blvd over Drainage Canal is a concrete culvert carrying Gretna Blvd over Drainage Canal in Jefferson Parish, Louisiana. It was built in 2004, so it is 21 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 2,500 vehicles a day, projected to reach 2,750 by 2036. The structure is 37 ft (11.3 m) long and 128 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesGretna Blvd
CrossesDrainage Canal
Location0.2 MI N of LA 23
RouteCounty Highway 0
CountyJefferson Parish
StateLouisiana
Coordinates29.90231, -90.04573
Functional classUrban 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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.5 US tons
Inventory rating33.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length37 ft (11.3 m)
Longest span24 ft (7.3 m)
Deck width128 ft (39 m)
Roadway width19 ft (5.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2016)
Projected traffic2,750 by 2036
Trucks—
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Gretna Blvd over Drainage Canal built?

It was built in 2004, making it 21 years old in 2025.

What condition is Gretna Blvd over Drainage 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 August 2023.

How much traffic does Gretna Blvd over Drainage Canal carry?

About 2,500 vehicles per day (2016 count).

How long is Gretna Blvd over Drainage Canal?

The structure is 37 ft (11.3 m) long with a longest span of 24 ft (7.3 m) and a deck 128 ft wide.

Who owns Gretna Blvd over Drainage Canal?

It is owned by the City or Municipal Highway Agency.