US Bridges

I0220 over Bayou

Fair

Bossier Parish, Louisiana · .7 MI East of LA 3105 · Structure no. 040804513104461

Built
1978
47 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
43 ft
4 main spans
Daily traffic
35,972
2021 count
Owner
State
State Highway Agency

About this bridge

I0220 over Bayou is a concrete culvert carrying I0220 over Bayou in Bossier Parish, Louisiana. It was built in 1978, so it is 47 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 35,972 vehicles a day, roughly 19% of them trucks, projected to reach 39,569 by 2041. The structure is 43 ft (13.1 m) long and 124 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI0220
CrossesBayou
Location.7 MI East of LA 3105
RouteInterstate 220
Coordinates32.557, -93.6982
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span7 ft (2.1 m)
Deck width124 ft (37.8 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35,972 (2021)
Projected traffic39,569 by 2041
Trucks19%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 I0220 over Bayou built?

It was built in 1978, making it 47 years old in 2025.

What condition is I0220 over 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 November 2023.

How much traffic does I0220 over Bayou carry?

About 35,972 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is I0220 over Bayou?

The structure is 43 ft (13.1 m) long with a longest span of 7 ft (2.1 m) and a deck 124 ft wide.

Who owns I0220 over Bayou?

It is owned by the State Highway Agency.