US Bridges

LA0034 over Interstate 20

Fair

Ouachita Parish, Louisiana · LA 34 over I-20 · Structure no. 053700670907132

Built
1965
60 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
333 ft
6 main spans
Daily traffic
17,565
2021 count
Owner
State
State Highway Agency

About this bridge

LA0034 over Interstate 20 is a steel stringer/multi-beam or girder carrying LA0034 over Interstate 20 in Ouachita Parish, Louisiana. It was built in 1965, so it is 60 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 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 17,565 vehicles a day, roughly 9% of them trucks, projected to reach 19,321 by 2041. The structure is 333 ft (101.5 m) long and 41 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesLA0034
CrossesInterstate 20
LocationLA 34 over I-20
RouteState Highway 34
CountyOuachita Parish
StateLouisiana
Coordinates32.49836, -92.1385
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating52.1 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length333 ft (101.5 m)
Longest span63 ft (19.2 m)
Deck width41 ft (12.5 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,565 (2021)
Projected traffic19,321 by 2041
Trucks9%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.4 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was LA0034 over Interstate 20 built?

It was built in 1965, making it 60 years old in 2025.

What condition is LA0034 over Interstate 20 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 2024.

How much traffic does LA0034 over Interstate 20 carry?

About 17,565 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is LA0034 over Interstate 20?

The structure is 333 ft (101.5 m) long with a longest span of 63 ft (19.2 m) and a deck 41 ft wide.

Who owns LA0034 over Interstate 20?

It is owned by the State Highway Agency.