Structure 50571 · Mower County, MN

T 112 over Deer Creek

Carries T 112 over Deer Creek, 0.2 Mi N Of Jct Csah 13.

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
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT81 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

81 ft end to end, longest span 30 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.

Built198739 years old
Length81.0 ft24.7 m
Daily traffic54counted 1986
Last inspectedAugust 2023every 24 months

Location

StateMinnesota
CountyMower
Location0.2 Mi N Of Jct Csah 13
CarriesT 112
CrossesDeer Creek
Coordinates43.68442, -92.58961

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length81.0 ft (24.7 m)
Max Span29.9 ft (9.1 m)
Deck Width31.2 ft (9.5 m)
Deck Area234.7 sq m
Main Spans3
Year Built1987

Traffic

Avg Daily Traffic54 (1986)
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number50571

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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