Structure 97939 · Koochiching County, MN

CR 61 over Dinner Creek

Carries CR 61 over Dinner Creek, 1.6 Mi W Of Jct TH 71.

Overall conditionPoor

Set by its lowest-rated component: Culvert at 4 of 9.

How ratings work
Culvertsets the rating4/9 · Poor
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
23 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 4/9

A culvert 23 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.

Built199333 years old
Length23.0 ft7 m
Daily traffic10counted 2008
Last inspectedAugust 2024every 12 months

Location

StateMinnesota
CountyKoochiching
Location1.6 Mi W Of Jct TH 71
CarriesCR 61
CrossesDinner Creek
Coordinates48.09259, -93.97401

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length23.0 ft (7 m)
Max Span9.5 ft (2.9 m)
Deck Area42.7 sq m
Main Spans2
Year Built1993

Traffic

Avg Daily Traffic10 (2008)
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number97939

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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