US Bridges

LA0087 over Charenton Canal

Fair

St. Mary Parish, Louisiana · 0.5 MI West of LA 326 · Structure no. 035102410208871

Built
1999
26 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
365 ft
5 main spans
Daily traffic
883
2021 count
Owner
State
State Highway Agency

About this bridge

LA0087 over Charenton Canal is a prestressed concrete continuous stringer/multi-beam or girder carrying LA0087 over Charenton Canal in St. Mary Parish, Louisiana. It was built in 1999, so it is 26 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 883 vehicles a day, roughly 12% of them trucks, projected to reach 971 by 2041. The structure is 365 ft (111.3 m) long and 47 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesLA0087
CrossesCharenton Canal
Location0.5 MI West of LA 326
RouteState Highway 87
CountySt. Mary Parish
StateLouisiana
Coordinates29.89039, -91.5254
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length365 ft (111.3 m)
Longest span73 ft (22.3 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic883 (2021)
Projected traffic971 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0087 over Charenton Canal built?

It was built in 1999, making it 26 years old in 2025.

What condition is LA0087 over Charenton 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 November 2023.

How much traffic does LA0087 over Charenton Canal carry?

About 883 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is LA0087 over Charenton Canal?

The structure is 365 ft (111.3 m) long with a longest span of 73 ft (22.3 m) and a deck 47 ft wide.

Who owns LA0087 over Charenton Canal?

It is owned by the State Highway Agency.