Structure 2J57 · Anoka County, MN

Csah 14 over Coon Creek

Carries Csah 14 over Coon Creek, 0.2 Mi N Of Jct Csah 14.

Overall conditionGood

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

How ratings work
Culvertsets the rating9/9 · Excellent
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT87 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 9/9

A culvert 87 ft across with 3 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.

Built20242 years old
Length86.9 ft26.5 m
Daily traffic15,591counted 2024
Last inspectedOctober 2024every 24 months

Location

StateMinnesota
CountyAnoka
Location0.2 Mi N Of Jct Csah 14
CarriesCsah 14
CrossesCoon Creek
Coordinates45.20100, -93.33253

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length86.9 ft (26.5 m)
Max Span24.9 ft (7.6 m)
Deck Area453.1 sq m
Main Spans3
Year Built2024

Traffic

Avg Daily Traffic15,591 (2024)
Lanes On Bridge4

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number02J57

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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