Structure 50119165 · Minnehaha County, SD

I090 W over Sd038

Carries I090 W over Sd038, Sd 38 & I 90 Interchange.

Overall conditionPoor

Set by its lowest-rated component: Deck at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT239 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 6/9Substructure 6/9

239 ft end to end, longest span 102 ft: about 3 semi-trucks nose to tail. Lengths and the semi-truck 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 multi-beam bridge.

Built198937 years old
Length239.2 ft72.9 m
Daily traffic8,815counted 2024
Last inspectedFebruary 2024every 24 months

Location

StateSouth Dakota
CountyMinnehaha
LocationSd 38 & I 90 Interchange
CarriesI090 W
CrossesSd038
Coordinates43.60918, -96.89436

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length239.2 ft (72.9 m)
Max Span102.0 ft (31.1 m)
Deck Width50.5 ft (15.4 m)
Deck Area1122.7 sq m
Main Spans3
Year Built1989

Traffic

Avg Daily Traffic8,815 (2024)
Truck Traffic19%
Lanes On Bridge3
Lanes Under Bridge2

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000050119165

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.

Nearby Bridges