US Bridges

I0020 over I20;RAMP N3

FairClosed to traffic

Ouachita Parish, Louisiana · 1.7 MI East of LA 34 · Structure no. 053704510618096

Built
1965
60 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
620 ft
10 main spans
Daily traffic
15,642
2021 count
Owner
State
State Highway Agency

About this bridge

I0020 over I20;RAMP N3 is a steel stringer/multi-beam or girder carrying I0020 over I20;RAMP N3 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. Its operating status is: closed to all traffic.

It carries about 15,642 vehicles a day, roughly 25% of them trucks, projected to reach 17,206 by 2041. The structure is 620 ft (189 m) long and 20 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI0020
CrossesI20;RAMP N3
Location1.7 MI East of LA 34
RouteInterstate 20
CountyOuachita Parish
StateLouisiana
Coordinates32.49919, -92.1114
Functional classUrban Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusClosed to all traffic
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment0: Immediate repair necessary to put back in service
Operating rating81 US tons
Inventory rating48 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length620 ft (189 m)
Longest span75 ft (22.9 m)
Deck width20 ft (6 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,642 (2021)
Projected traffic17,206 by 2041
Trucks25%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I0020 over I20;RAMP N3 built?

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

What condition is I0020 over I20;RAMP N3 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 September 2024.

How much traffic does I0020 over I20;RAMP N3 carry?

About 15,642 vehicles per day (2021 count), of which roughly 25% are trucks.

How long is I0020 over I20;RAMP N3?

The structure is 620 ft (189 m) long with a longest span of 75 ft (22.9 m) and a deck 20 ft wide.

Who owns I0020 over I20;RAMP N3?

It is owned by the State Highway Agency.