US Bridges

I0020 over Drain

Fair

Bossier Parish, Louisiana · 10.0 MI East of LA 782-2 · Structure no. 040804510214241

Built
1975
50 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
26 ft
4 main spans
Daily traffic
25,379
2021 count
Owner
State
State Highway Agency

About this bridge

I0020 over Drain is a concrete culvert carrying I0020 over Drain in Bossier Parish, Louisiana. It was built in 1975, so it is 50 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 25,379 vehicles a day, roughly 36% of them trucks, projected to reach 27,916 by 2041. The structure is 26 ft (7.9 m) long and 182 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesI0020
CrossesDrain
Location10.0 MI East of LA 782-2
RouteInterstate 20
Coordinates32.55355, -93.5093
Functional classRural 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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
Waterway adequacy8: Equal to present desirable 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 length26 ft (7.9 m)
Longest span6 ft (1.8 m)
Deck width182 ft (55.5 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,379 (2021)
Projected traffic27,916 by 2041
Trucks36%
Lanes on structure5
Traffic directionTwo-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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I0020 over Drain built?

It was built in 1975, making it 50 years old in 2025.

What condition is I0020 over Drain 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 I0020 over Drain carry?

About 25,379 vehicles per day (2021 count), of which roughly 36% are trucks.

How long is I0020 over Drain?

The structure is 26 ft (7.9 m) long with a longest span of 6 ft (1.8 m) and a deck 182 ft wide.

Who owns I0020 over Drain?

It is owned by the State Highway Agency.