US Bridges

LA0182 over Charenton

PoorPosted for load

St. Mary Parish, Louisiana · 1.1 Miles South of LA 83 · Structure no. 035100040609371

Built
1941
84 years old
Condition
Poor
inspected March 2024
Type
Truss - Thru
Steel
Length
2,422 ft
1 main span
Daily traffic
6,242
2021 count
Owner
State
State Highway Agency

About this bridge

LA0182 over Charenton is a steel truss - thru carrying LA0182 over Charenton in St. Mary Parish, Louisiana. It was built in 1941, so it is 84 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 6,242 vehicles a day, roughly 9% of them trucks, projected to reach 6,866 by 2041. The structure is 2,422 ft (738.2 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLA0182
CrossesCharenton
Location1.1 Miles South of LA 83
RouteState Highway 182
CountySt. Mary Parish
StateLouisiana
Coordinates29.827, -91.5412
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
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 rating22.2 US tons
Inventory rating17.2 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+52 approach)
Design loadH 15
Structure length2,422 ft (738.2 m)
Longest span300 ft (91.4 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deck15 ft (4.6 m)

Traffic and service

Average daily traffic6,242 (2021)
Projected traffic6,866 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$9.4 million
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was LA0182 over Charenton built?

It was built in 1941, making it 84 years old in 2025.

What condition is LA0182 over Charenton in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does LA0182 over Charenton carry?

About 6,242 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is LA0182 over Charenton?

The structure is 2,422 ft (738.2 m) long with a longest span of 300 ft (91.4 m) and a deck 27 ft wide.

Who owns LA0182 over Charenton?

It is owned by the State Highway Agency.