Structure R0325 · Cass County, MN

T 82 over Mayo Creek

Carries T 82 over Mayo Creek, 0.3 Mi E Of Jct Csah 17.

Overall conditionPoor

Set by its lowest-rated component: Culvert at 4 of 9.

How ratings work
Culvertsets the rating4/9 · Poor
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
24 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 4/9

A culvert 24 ft across with 2 openings. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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.

Built199135 years old
Length23.6 ft7.2 m
Daily traffic10counted 1986
Last inspectedAugust 2024every 12 months

Location

StateMinnesota
CountyCass
Location0.3 Mi E Of Jct Csah 17
CarriesT 82
CrossesMayo Creek
Coordinates46.60209, -94.35663

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length23.6 ft (7.2 m)
Max Span9.8 ft (3 m)
Deck Area39.6 sq m
Main Spans2
Year Built1991

Traffic

Avg Daily Traffic10 (1986)
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 12 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberR0325

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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