US Bridges

LA3021 over Southern RR

Fair

Orleans Parish, Louisiana · .3 MI South of I-610 · Structure no. 023604190100811

Built
1950
75 years old
Condition
Fair
inspected January 2024
Type
Tee Beam
Concrete
Length
1,212 ft
22 main spans
Daily traffic
47,747
2021 count
Owner
State
State Highway Agency

About this bridge

LA3021 over Southern RR is a concrete tee beam carrying LA3021 over Southern RR in Orleans Parish, Louisiana. It was built in 1950, so it is 75 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 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 47,747 vehicles a day, roughly 10% of them trucks, projected to reach 52,521 by 2041. The structure is 1,212 ft (369.4 m) long and 44 ft wide.

Location

Open in Google Maps
CarriesLA3021
CrossesSouthern RR
Location.3 MI South of I-610
RouteState Highway 3021
CountyOrleans Parish
StateLouisiana
Coordinates29.98408, -90.058
Functional classUrban Other Principal 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.8 US tons
Inventory rating21.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans22 (+3 approach)
Design loadHS 20
Structure length1,212 ft (369.4 m)
Longest span68 ft (20.7 m)
Deck width44 ft (13.4 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47,747 (2021)
Projected traffic52,521 by 2041
Trucks10%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed—
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$4.7 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was LA3021 over Southern RR built?

It was built in 1950, making it 75 years old in 2025.

What condition is LA3021 over Southern RR 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 January 2024.

How much traffic does LA3021 over Southern RR carry?

About 47,747 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is LA3021 over Southern RR?

The structure is 1,212 ft (369.4 m) long with a longest span of 68 ft (20.7 m) and a deck 44 ft wide.

Who owns LA3021 over Southern RR?

It is owned by the State Highway Agency.