US Bridges

LA3139 over LA South & Kcs. Railroad

Fair

Jefferson Parish, Louisiana · .8 MI East of LA 3152 · Structure no. 022604300102821

Built
1984
41 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,907 ft
22 main spans
Daily traffic
55,872
2021 count
Owner
State
State Highway Agency

About this bridge

LA3139 over LA South & Kcs. Railroad is a prestressed concrete stringer/multi-beam or girder carrying LA3139 over LA South & Kcs. Railroad in Jefferson Parish, Louisiana. It was built in 1984, so it is 41 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 55,872 vehicles a day, roughly 18% of them trucks, projected to reach 61,459 by 2041. The structure is 1,907 ft (581.3 m) long and 108 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLA3139
CrossesLA South & Kcs. Railroad
Location.8 MI East of LA 3152
RouteState Highway 3139
Coordinates29.97114, -90.1656
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating35.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans22 (+12 approach)
Design loadHS 20
Structure length1,907 ft (581.3 m)
Longest span100 ft (30.5 m)
Deck width108 ft (32.8 m)
Roadway width105 ft (32 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55,872 (2021)
Projected traffic61,459 by 2041
Trucks18%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was LA3139 over LA South & Kcs. Railroad built?

It was built in 1984, making it 41 years old in 2025.

What condition is LA3139 over LA South & Kcs. Railroad 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 July 2023.

How much traffic does LA3139 over LA South & Kcs. Railroad carry?

About 55,872 vehicles per day (2021 count), of which roughly 18% are trucks.

How long is LA3139 over LA South & Kcs. Railroad?

The structure is 1,907 ft (581.3 m) long with a longest span of 100 ft (30.5 m) and a deck 108 ft wide.

Who owns LA3139 over LA South & Kcs. Railroad?

It is owned by the State Highway Agency.