Structure 85820 · Winona County, MN

I 90 over Csah 33

Carries I 90 over Csah 33, 5.8 Mi SE Of Jct TH 74.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT140 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

140 ft end to end, longest span 54 ft. 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.

Built197056 years old
Length140.4 ft42.8 m
Daily traffic7,411counted 2022
Last inspectedOctober 2024every 24 months

Location

StateMinnesota
CountyWinona
Location5.8 Mi SE Of Jct TH 74
CarriesI 90
CrossesCsah 33
Coordinates43.93280, -91.95874

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length140.4 ft (42.8 m)
Max Span54.5 ft (16.6 m)
Deck Width44.6 ft (13.6 m)
Deck Area582.1 sq m
Main Spans3
Year Built1970

Traffic

Avg Daily Traffic7,411 (2022)
Truck Traffic27%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number85820

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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