US Bridges

I090 WB on Ramp over Channel Ck

FairPosted for load

Pennington County, South Dakota · 2.9 W of Box Elder · Structure no. 000000052469277

Built
1962
63 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
151 ft
3 main spans
Daily traffic
6,028
2023 count
Owner
State
State Highway Agency

About this bridge

I090 WB on Ramp over Channel Ck is a steel stringer/multi-beam or girder carrying I090 WB on Ramp over Channel Ck in Pennington County, South Dakota. It was built in 1962, so it is 63 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 6,028 vehicles a day, roughly 10% of them trucks, projected to reach 8,735 by 2043. The structure is 151 ft (46 m) long and 32 ft wide.

Location

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CarriesI090 WB on Ramp
CrossesChannel Ck
Location2.9 W of Box Elder
RouteInterstate 90
CountyPennington County
StateSouth Dakota
Coordinates44.11525, -103.11436
Functional classUrban 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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating44.9 US tons
Inventory rating26.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length151 ft (46 m)
Longest span52 ft (16 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,028 (2023)
Projected traffic8,735 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 WB on Ramp over Channel Ck built?

It was built in 1962, making it 63 years old in 2025.

What condition is I090 WB on Ramp over Channel Ck 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 WB on Ramp over Channel Ck carry?

About 6,028 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is I090 WB on Ramp over Channel Ck?

The structure is 151 ft (46 m) long with a longest span of 52 ft (16 m) and a deck 32 ft wide.

Who owns I090 WB on Ramp over Channel Ck?

It is owned by the State Highway Agency.