Structure 12544 · Chippewa County, MN

T 100 over Co Ditch # 22

Carries T 100 over Co Ditch # 22, 1.1 Mi S Of Jct Csah 12.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
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 FT61 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

61 ft end to end, longest span 22 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.

Built199135 years old
Length61.4 ft18.7 m
Daily traffic22counted 1991
Last inspectedSeptember 2024every 24 months

Location

StateMinnesota
CountyChippewa
Location1.1 Mi S Of Jct Csah 12
CarriesT 100
CrossesCo Ditch # 22
Coordinates45.04879, -95.57432

Physical Characteristics

MaterialWood or Timber
DesignSlab
Total Length61.4 ft (18.7 m)
Max Span21.7 ft (6.6 m)
Deck Width29.9 ft (9.1 m)
Deck Area170.2 sq m
Main Spans3
Year Built1991

Traffic

Avg Daily Traffic22 (1991)
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number12544

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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