US Bridges

LA0018 over Harvey Canal

Fair

Jefferson Parish, Louisiana · .05 MI East of LA 3018 · Structure no. 022600630202351

Built
1975
50 years old
Condition
Fair
inspected May 2024
Type
Movable - Bascule
Steel
Length
211 ft
2 main spans
Daily traffic
9,678
2021 count
Owner
State
State Highway Agency

About this bridge

LA0018 over Harvey Canal is a steel movable - bascule carrying LA0018 over Harvey Canal in Jefferson Parish, Louisiana. It was built in 1975, so it is 50 years old, older 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 9,678 vehicles a day, roughly 11% of them trucks, projected to reach 10,645 by 2041. The structure is 211 ft (64.3 m) long and 42 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLA0018
CrossesHarvey Canal
Location.05 MI East of LA 3018
RouteState Highway 18
CountyJefferson Parish
StateLouisiana
Coordinates29.90772, -90.08354
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating29.3 US tons
Inventory rating22.5 US tons

Structure

Structure typeMovable - Bascule
MaterialSteel
DeckOpen grating
Main spans2 (+2 approach)
Design loadHS 20
Structure length211 ft (64.3 m)
Longest span95 ft (29 m)
Deck width42 ft (12.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,678 (2021)
Projected traffic10,645 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$939,000
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was LA0018 over Harvey Canal built?

It was built in 1975, making it 50 years old in 2025.

What condition is LA0018 over Harvey 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 May 2024.

How much traffic does LA0018 over Harvey Canal carry?

About 9,678 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is LA0018 over Harvey Canal?

The structure is 211 ft (64.3 m) long with a longest span of 95 ft (29 m) and a deck 42 ft wide.

Who owns LA0018 over Harvey Canal?

It is owned by the State Highway Agency.