US Bridges

LA0083 over Ivanhoe Canal

Fair

St. Mary Parish, Louisiana · 2.8 MI East of LA 319 · Structure no. 035102390202651

Built
1959
66 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
140 ft
7 main spans
Daily traffic
3,078
2021 count
Owner
State
State Highway Agency

About this bridge

LA0083 over Ivanhoe Canal is a concrete slab carrying LA0083 over Ivanhoe Canal in St. Mary Parish, Louisiana. It was built in 1959, so it is 66 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 3,078 vehicles a day, roughly 13% of them trucks, projected to reach 3,385 by 2041. The structure is 140 ft (42.7 m) long and 29 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesLA0083
CrossesIvanhoe Canal
Location2.8 MI East of LA 319
RouteState Highway 83
CountySt. Mary Parish
StateLouisiana
Coordinates29.78473, -91.7328
Functional classRural Major Collector

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 protection6 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 alignment6: Equal to present minimum criteria
Operating rating51 US tons
Inventory rating31 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadH 15
Structure length140 ft (42.7 m)
Longest span20 ft (6.1 m)
Deck width29 ft (8.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,078 (2021)
Projected traffic3,385 by 2041
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0083 over Ivanhoe Canal built?

It was built in 1959, making it 66 years old in 2025.

What condition is LA0083 over Ivanhoe 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 LA0083 over Ivanhoe Canal carry?

About 3,078 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is LA0083 over Ivanhoe Canal?

The structure is 140 ft (42.7 m) long with a longest span of 20 ft (6.1 m) and a deck 29 ft wide.

Who owns LA0083 over Ivanhoe Canal?

It is owned by the State Highway Agency.