US Bridges

I090 E over Schenk Lane

Fair

Lawrence County, South Dakota · 2 E Wyo. LN Interchange · Structure no. 000000041020042

Built
1974
51 years old
Condition
Fair
inspected November 2022
Type
Slab
Concrete Continuous
Length
132 ft
3 main spans
Daily traffic
3,462
2024 count
Owner
State
State Highway Agency

About this bridge

I090 E over Schenk Lane is a concrete continuous slab carrying I090 E over Schenk Lane in Lawrence County, South Dakota. It was built in 1974, so it is 51 years old, older than the South Dakota average of 48.9 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 3,462 vehicles a day, roughly 18% of them trucks, projected to reach 5,338 by 2044. The structure is 132 ft (40.2 m) long and 43 ft wide.

CarriesI090 E
CrossesSchenk Lane
Location2 E Wyo. LN Interchange
RouteInterstate 90
Coordinates44.54611, -104.01169
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating94.1 US tons
Inventory rating56.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length132 ft (40.2 m)
Longest span48 ft (14.6 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,462 (2024)
Projected traffic5,338 by 2044
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I090 E over Schenk Lane built?

It was built in 1974, making it 51 years old in 2025.

What condition is I090 E over Schenk Lane 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 2022.

How much traffic does I090 E over Schenk Lane carry?

About 3,462 vehicles per day (2024 count), of which roughly 18% are trucks.

How long is I090 E over Schenk Lane?

The structure is 132 ft (40.2 m) long with a longest span of 48 ft (14.6 m) and a deck 43 ft wide.

Who owns I090 E over Schenk Lane?

It is owned by the State Highway Agency.