US Bridges

I0020 over Youngs Bayou

Fair

Ouachita Parish, Louisiana · .7 MI East of LA 594 · Structure no. 053704510619627

Built
1965
60 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete
Length
140 ft
7 main spans
Daily traffic
15,642
2021 count
Owner
State
State Highway Agency

About this bridge

I0020 over Youngs Bayou is a concrete slab carrying I0020 over Youngs Bayou 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 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 15,642 vehicles a day, roughly 25% of them trucks, projected to reach 17,206 by 2041. The structure is 140 ft (42.7 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesI0020
CrossesYoungs Bayou
Location.7 MI East of LA 594
RouteInterstate 20
CountyOuachita Parish
StateLouisiana
Coordinates32.49931, -92.0877
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
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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating38.3 US tons
Inventory rating29.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length140 ft (42.7 m)
Longest span20 ft (6.1 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,642 (2021)
Projected traffic17,206 by 2041
Trucks25%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$663,000
NavigationNo navigation control on waterway

Frequently asked questions

When was I0020 over Youngs Bayou built?

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

What condition is I0020 over Youngs Bayou 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 I0020 over Youngs Bayou carry?

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

How long is I0020 over Youngs Bayou?

The structure is 140 ft (42.7 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.

Who owns I0020 over Youngs Bayou?

It is owned by the State Highway Agency.