Structure 50812 · Mower County, MN

I 90 EB over Cedar River

Carries I 90 EB over Cedar River, 0.8 Mi E Of W Jct TH 218.

Overall conditionGood

Set by its lowest-rated component: Deck at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructure9/9 · Excellent
Substructure9/9 · Excellent
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT178 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9 · sets the ratingSuperstructure 9/9Substructure 9/9

178 ft end to end, longest span 76 ft: about 2 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.

Built20242 years old
Length177.8 ft54.2 m
Daily traffic11,649counted 2021
Last inspectedDecember 2024every 24 months

Location

StateMinnesota
CountyMower
Location0.8 Mi E Of W Jct TH 218
CarriesI 90 EB
CrossesCedar River
Coordinates43.68049, -92.97485

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length177.8 ft (54.2 m)
Max Span76.1 ft (23.2 m)
Deck Width53.1 ft (16.2 m)
Deck Area878.0 sq m
Main Spans3
Year Built2024

Traffic

Avg Daily Traffic11,649 (2021)
Truck Traffic14%
Lanes On Bridge3

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number50812

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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