US Bridges

I090 EB Off Ramp over Channel Ck

Good

Pennington County, South Dakota · 2.7 W of Box Elder · Structure no. 000000052469278

Built
1994
31 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete Continuous
Length
50 ft
4 main spans
Daily traffic
4,974
2023 count
Owner
State
State Highway Agency

About this bridge

I090 EB Off Ramp over Channel Ck is a concrete continuous culvert carrying I090 EB Off Ramp over Channel Ck in Pennington County, South Dakota. It was built in 1994, so it is 31 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 4,974 vehicles a day, roughly 10% of them trucks, projected to reach 7,207 by 2043. The structure is 50 ft (15.2 m) long.

CarriesI090 EB Off Ramp
CrossesChannel Ck
Location2.7 W of Box Elder
RouteInterstate 90
Coordinates44.11465, -103.11127
Functional classUrban 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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating108.4 US tons
Inventory rating64.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20 + Mod
Structure length50 ft (15.2 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,974 (2023)
Projected traffic7,207 by 2043
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 EB Off Ramp over Channel Ck built?

It was built in 1994, making it 31 years old in 2025.

What condition is I090 EB Off Ramp over Channel 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 February 2023.

How much traffic does I090 EB Off Ramp over Channel Ck carry?

About 4,974 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is I090 EB Off Ramp over Channel Ck?

The structure is 50 ft (15.2 m) long with a longest span of 12 ft (3.7 m).

Who owns I090 EB Off Ramp over Channel Ck?

It is owned by the State Highway Agency.