Structure 92856 · Cass County, MN

Csah 20 over Beaver Creek

Carries Csah 20 over Beaver Creek, 2.9 Mi W;s Of Jct TH 64.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
25 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 25 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.

Built196462 years old
Length24.9 ft7.6 m
Daily traffic255counted 2019
Last inspectedSeptember 2023every 48 months

Location

StateMinnesota
CountyCass
Location2.9 Mi W;s Of Jct TH 64
CarriesCsah 20
CrossesBeaver Creek
Coordinates46.66740, -94.74423

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length24.9 ft (7.6 m)
Max Span10.5 ft (3.2 m)
Deck Area69.2 sq m
Main Spans2
Year Built1964

Traffic

Avg Daily Traffic255 (2019)
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 48 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number92856

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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