US Bridges

I090 W over SD063

Good

Jackson County, South Dakota · Sd 63 N Interchange · Structure no. 000000036501078

Built
1968
57 years old
Condition
Good
inspected April 2023
Type
Slab
Concrete Continuous
Length
119 ft
3 main spans
Daily traffic
3,286
2024 count
Owner
State
State Highway Agency

About this bridge

I090 W over SD063 is a concrete continuous slab carrying I090 W over SD063 in Jackson County, South Dakota. It was built in 1968, so it is 57 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,286 vehicles a day, roughly 30% of them trucks, projected to reach 4,620 by 2044. The structure is 119 ft (36.3 m) long and 41 ft wide.

CarriesI090 W
CrossesSD063
LocationSd 63 N Interchange
RouteInterstate 90
Coordinates43.88136, -101.141
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.1 US tons
Inventory rating34.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length119 ft (36.3 m)
Longest span43 ft (13.1 m)
Deck width41 ft (12.4 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,286 (2024)
Projected traffic4,620 by 2044
Trucks30%
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 W over SD063 built?

It was built in 1968, making it 57 years old in 2025.

What condition is I090 W over SD063 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does I090 W over SD063 carry?

About 3,286 vehicles per day (2024 count), of which roughly 30% are trucks.

How long is I090 W over SD063?

The structure is 119 ft (36.3 m) long with a longest span of 43 ft (13.1 m) and a deck 41 ft wide.

Who owns I090 W over SD063?

It is owned by the State Highway Agency.