Structure 3360 · Itasca County, MN

CR 561 over Snowball Creek

Carries CR 561 over Snowball Creek, 0.1 Mi E Of Jct US 169.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
22 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 6/9

22 ft end to end. 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 or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built1920rebuilt 1932
Length22.0 ft6.7 m
Daily traffic20counted 2013
Last inspectedApril 2024every 12 months

Location

StateMinnesota
CountyItasca
Location0.1 Mi E Of Jct US 169
CarriesCR 561
CrossesSnowball Creek
Coordinates47.33120, -93.23295

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length22.0 ft (6.7 m)
Max Span19.7 ft (6 m)
Deck Width44.9 ft (13.7 m)
Deck Area91.8 sq m
Main Spans1
Year Built1920 (reconstructed 1932)

Traffic

Avg Daily Traffic20 (2013)
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number3360

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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