US Bridges

LA3213 over Mississippi River

Fair

St. James Parish, Louisiana · 0.85M NE JCT LA20 & LA44 · Structure no. 614704340200001

Built
1989
36 years old
Condition
Fair
inspected August 2023
Type
Truss - Thru
Steel Continuous
Length
3,010 ft
70 main spans
Daily traffic
13,743
2021 count
Owner
State
State Highway Agency

About this bridge

LA3213 over Mississippi River is a steel continuous truss - thru carrying LA3213 over Mississippi River in St. James Parish, Louisiana. It was built in 1989, so it is 36 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 5 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 13,743 vehicles a day, roughly 7% of them trucks, projected to reach 15,117 by 2041. The structure is 3,010 ft (917.4 m) long and 76 ft wide. If it were closed, the detour would be 44.7 mi (72 km).

Location

Open in Google Maps
CarriesLA3213
CrossesMississippi River
Location0.85M NE JCT LA20 & LA44
RouteState Highway 3213
CountySt. James Parish
StateLouisiana
Coordinates30.0429, -90.67092
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.6 US tons
Inventory rating18.2 US tons

Structure

Structure typeTruss - Thru
MaterialSteel Continuous
DeckOpen grating
Main spans70
Design loadHS 20
Structure length3,010 ft (917.4 m)
Longest span1,462 ft (445.6 m)
Deck width76 ft (23.2 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deck28 ft (8.6 m)

Traffic and service

Average daily traffic13,743 (2021)
Projected traffic15,117 by 2041
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed44.7 mi (72 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was LA3213 over Mississippi River built?

It was built in 1989, making it 36 years old in 2025.

What condition is LA3213 over Mississippi River 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 LA3213 over Mississippi River carry?

About 13,743 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is LA3213 over Mississippi River?

The structure is 3,010 ft (917.4 m) long with a longest span of 1,462 ft (445.6 m) and a deck 76 ft wide.

Who owns LA3213 over Mississippi River?

It is owned by the State Highway Agency.