Structure 50144166 · Minnehaha County, SD

I090 E over Ck

Carries I090 E over Ck, 2.6 E Sd 38 Interch.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT106 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

106 ft end to end, longest span 38 ft. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built196165 years old
Length106.3 ft32.4 m
Daily traffic8,815counted 2024
Last inspectedOctober 2024every 12 months

Location

StateSouth Dakota
CountyMinnehaha
Location2.6 E Sd 38 Interch
CarriesI090 E
CrossesCk
Coordinates43.60848, -96.84188

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length106.3 ft (32.4 m)
Max Span37.7 ft (11.5 m)
Deck Width42.3 ft (12.9 m)
Deck Area418.0 sq m
Main Spans3
Year Built1961

Traffic

Avg Daily Traffic8,815 (2024)
Truck Traffic19%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number000000050144166

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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