US Bridges

LA0151 over I-20

Fair

Ouachita Parish, Louisiana · LA 151 over I-20 · Structure no. 053703170200931

Built
1960
65 years old, rebuilt 2024
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
297 ft
6 main spans
Daily traffic
2,862
2021 count
Owner
State
State Highway Agency

About this bridge

LA0151 over I-20 is a steel stringer/multi-beam or girder carrying LA0151 over I-20 in Ouachita Parish, Louisiana. It was built in 1960 and reconstructed in 2024, so it is 65 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 2,862 vehicles a day, roughly 19% of them trucks, projected to reach 3,148 by 2041. The structure is 297 ft (90.5 m) long and 31 ft wide.

Location

Open in Google Maps
CarriesLA0151
CrossesI-20
LocationLA 151 over I-20
RouteState Highway 151
CountyOuachita Parish
StateLouisiana
Coordinates32.52116, -92.3639
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length297 ft (90.5 m)
Longest span70 ft (21.3 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,862 (2021)
Projected traffic3,148 by 2041
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was LA0151 over I-20 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2024.

What condition is LA0151 over I-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 October 2024.

How much traffic does LA0151 over I-20 carry?

About 2,862 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is LA0151 over I-20?

The structure is 297 ft (90.5 m) long with a longest span of 70 ft (21.3 m) and a deck 31 ft wide.

Who owns LA0151 over I-20?

It is owned by the State Highway Agency.