Structure 33520 · Kanabec County, MN

Csah 6 over Snake River

Carries Csah 6 over Snake River, 0.1 Mi E Of Jct Csah 8.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT294 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

294 ft end to end, longest span 96 ft: about 4 semi-trucks nose to tail. Lengths and the semi-truck 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 multi-beam bridge.

Built198046 years old
Length294.3 ft89.7 m
Daily traffic3,750counted 2018
Last inspectedNovember 2023every 24 months

Location

StateMinnesota
CountyKanabec
Location0.1 Mi E Of Jct Csah 8
CarriesCsah 6
CrossesSnake River
Coordinates45.88250, -93.31015

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length294.3 ft (89.7 m)
Max Span96.5 ft (29.4 m)
Deck Width47.2 ft (14.4 m)
Deck Area1291.7 sq m
Main Spans3
Year Built1980

Traffic

Avg Daily Traffic3,750 (2018)
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number33520

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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