US Bridges

I0020 over Drain

Fair

Caddo Parish, Louisiana · 2.1 MI West of LA 169 · Structure no. 040904510101631

Built
1964
61 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
160 ft
8 main spans
Daily traffic
98,318
2021 count
Owner
State
State Highway Agency

About this bridge

I0020 over Drain is a concrete slab carrying I0020 over Drain in Caddo Parish, Louisiana. It was built in 1964, so it is 61 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 98,318 vehicles a day, roughly 36% of them trucks, projected to reach 108,149 by 2041. The structure is 160 ft (48.8 m) long and 55 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesI0020
CrossesDrain
Location2.1 MI West of LA 169
RouteInterstate 20
Coordinates32.45169, -94.0179
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
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span20 ft (6.1 m)
Deck width55 ft (16.8 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic98,318 (2021)
Projected traffic108,149 by 2041
Trucks36%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 1964, making it 61 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 March 2024.

How much traffic does I0020 over Drain carry?

About 98,318 vehicles per day (2021 count), of which roughly 36% are trucks.

How long is I0020 over Drain?

The structure is 160 ft (48.8 m) long with a longest span of 20 ft (6.1 m) and a deck 55 ft wide.

Who owns I0020 over Drain?

It is owned by the State Highway Agency.