Structure 93474 · Cottonwood County, MN

Csah 10 over Mound Creek

Carries Csah 10 over Mound Creek, 0.2 Mi W Of Jct TH 71.

Overall conditionGood

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

How ratings work
Culvertsets the rating8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT31 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 8/9

A culvert 31 ft across with 2 openings. 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, so those are drawn as typical for a culvert.

Built198046 years old
Length31.2 ft9.5 m
Daily traffic220counted 2016
Last inspectedOctober 2023every 24 months

Location

StateMinnesota
CountyCottonwood
Location0.2 Mi W Of Jct TH 71
CarriesCsah 10
CrossesMound Creek
Coordinates44.12270, -95.12431

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length31.2 ft (9.5 m)
Max Span13.1 ft (4 m)
Deck Area86.5 sq m
Main Spans2
Year Built1980

Traffic

Avg Daily Traffic220 (2016)
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number93474

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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