US Bridges

LA0001 over Intracoastal Canl

Fair

Lafourche Parish, Louisiana · .05 MI North of LA 24 · Structure no. 022900640503281

Built
1961
64 years old
Condition
Fair
inspected November 2023
Type
Movable - Lift
Steel
Length
2,035 ft
1 main span
Daily traffic
3,276
2021 count
Owner
State
State Highway Agency

About this bridge

LA0001 over Intracoastal Canl is a steel movable - lift carrying LA0001 over Intracoastal Canl in Lafourche Parish, Louisiana. It was built in 1961, so it is 64 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 3,276 vehicles a day, roughly 11% of them trucks, projected to reach 3,603 by 2041. The structure is 2,035 ft (620.3 m) long and 39 ft wide. If it were closed, the detour would be 32.9 mi (53 km).

Location

Open in Google Maps
CarriesLA0001
CrossesIntracoastal Canl
Location.05 MI North of LA 24
RouteState Highway 1
CountyLafourche Parish
StateLouisiana
Coordinates29.56815, -90.38246
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
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 alignment8: Equal to present desirable criteria
Operating rating24.3 US tons
Inventory rating23.6 US tons

Structure

Structure typeMovable - Lift
MaterialSteel
DeckOpen grating
Main spans1 (+52 approach)
Design loadHS 20
Structure length2,035 ft (620.3 m)
Longest span160 ft (48.8 m)
Deck width39 ft (11.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck17 ft (5.2 m)

Traffic and service

Average daily traffic3,276 (2021)
Projected traffic3,603 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed32.9 mi (53 km)
TollOn a free road
National Highway SystemYes

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$7.9 million
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was LA0001 over Intracoastal Canl built?

It was built in 1961, making it 64 years old in 2025.

What condition is LA0001 over Intracoastal Canl 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 November 2023.

How much traffic does LA0001 over Intracoastal Canl carry?

About 3,276 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is LA0001 over Intracoastal Canl?

The structure is 2,035 ft (620.3 m) long with a longest span of 160 ft (48.8 m) and a deck 39 ft wide.

Who owns LA0001 over Intracoastal Canl?

It is owned by the State Highway Agency.