US Bridges

I090 over Skunk Ck

Good

Minnehaha County, South Dakota · 0.4 W Sd 38 Interch · Structure no. 000000050114165

Built
2023
2 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete Continuous
Length
45 ft
3 main spans
Daily traffic
7,767
2024 count
Owner
State
State Highway Agency

About this bridge

I090 over Skunk Ck is a concrete continuous culvert carrying I090 over Skunk Ck in Minnehaha County, South Dakota. It was built in 2023, so it is 2 years old, younger 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 7,767 vehicles a day, roughly 19% of them trucks, projected to reach 11,689 by 2044. The structure is 45 ft (13.8 m) long and 80 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI090
CrossesSkunk Ck
Location0.4 W Sd 38 Interch
RouteInterstate 90
Coordinates43.60907, -96.90195
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating82.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHL 93
Structure length45 ft (13.8 m)
Longest span14 ft (4.2 m)
Deck width80 ft (24.4 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,767 (2024)
Projected traffic11,689 by 2044
Trucks19%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I090 over Skunk Ck built?

It was built in 2023, making it 2 years old in 2025.

What condition is I090 over Skunk Ck 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 November 2024.

How much traffic does I090 over Skunk Ck carry?

About 7,767 vehicles per day (2024 count), of which roughly 19% are trucks.

How long is I090 over Skunk Ck?

The structure is 45 ft (13.8 m) long with a longest span of 14 ft (4.2 m) and a deck 80 ft wide.

Who owns I090 over Skunk Ck?

It is owned by the State Highway Agency.