US Bridges

I0020 over Youngs Bayou

Poor

Ouachita Parish, Louisiana · .7 MI East of LA 594 · Structure no. 053704510619626

Built
1965
60 years old
Condition
Poor
inspected October 2024
Type
Slab
Concrete
Length
140 ft
7 main spans
Daily traffic
31,285
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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 31,285 vehicles a day, roughly 25% of them trucks, projected to reach 34,413 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).

CarriesI0020
CrossesYoungs Bayou
Location.7 MI East of LA 594
RouteInterstate 20
Coordinates32.50004, -92.0872
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, 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 evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating83 US tons
Inventory rating50 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 traffic31,285 (2021)
Projected traffic34,413 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 poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does I0020 over Youngs Bayou carry?

About 31,285 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.