Structure 95663 · Marshall County, MN

T 412 over Co Ditch # 20

Carries T 412 over Co Ditch # 20, 0.1 Mi S Of Jct Csah 2.

Overall conditionFair

Set by its lowest-rated component: Culvert at 6 of 9.

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
22 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 22 ft across. 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.

Built198145 years old
Length22.3 ft6.8 m
Daily traffic8counted 1994
Last inspectedOctober 2023every 24 months

Location

StateMinnesota
CountyMarshall
Location0.1 Mi S Of Jct Csah 2
CarriesT 412
CrossesCo Ditch # 20
Coordinates48.22291, -95.72249

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length22.3 ft (6.8 m)
Max Span22.3 ft (6.8 m)
Deck Area57.8 sq m
Main Spans1
Year Built1981

Traffic

Avg Daily Traffic8 (1994)
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number95663

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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