I090 W over 242 ST

Fair

Jones County, South Dakota · 2.2 E US 83 S Interch · Structure no. 000000038200190

Built: 1970; 55 years old
Condition: Fair; inspected February 2024
Type: Slab; Concrete Continuous
Length: 80 ft; 3 main spans
Daily traffic: 3,659; 2024 count
Owner: State; State Highway Agency

About this bridge

I090 W over 242 ST is a concrete continuous slab carrying I090 W over 242 ST in Jones County, South Dakota. It was built in 1970, so it is 55 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 3,659 vehicles a day, roughly 27% of them trucks, projected to reach 5,170 by 2044. The structure is 80 ft (24.4 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI090 W

Crosses242 ST

Location2.2 E US 83 S Interch

RouteInterstate 90

CountyJones County

StateSouth Dakota

Coordinates43.89391, -100.66715

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.

Component	Rating	Meaning
Deck	7 Good	Some minor problems.
Superstructure	7 Good	Some minor problems.
Substructure	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionFebruary 2024

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourBridge not over waterway

Structural evaluation6: Equal to present minimum criteria

Deck geometry6: Equal to present minimum criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating71.9 US tons

Inventory rating43 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHS 20 + Mod

Structure length80 ft (24.4 m)

Longest span28 ft (8.5 m)

Deck width41 ft (12.4 m)

Roadway width38 ft (11.6 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,659 (2024)

Projected traffic5,170 by 2044

Trucks27%

Lanes on structure2

Traffic directionOne-way traffic

CarriesHighway

CrossesHighway

Detour if closed0.6 mi (1 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—

NavigationNot applicable (no waterway)

Frequently asked questions

When was I090 W over 242 ST built?

It was built in 1970, making it 55 years old in 2025.

What condition is I090 W over 242 ST 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 February 2024.

How much traffic does I090 W over 242 ST carry?

About 3,659 vehicles per day (2024 count), of which roughly 27% are trucks.

How long is I090 W over 242 ST?

The structure is 80 ft (24.4 m) long with a longest span of 28 ft (8.5 m) and a deck 41 ft wide.

Who owns I090 W over 242 ST?

It is owned by the State Highway Agency.