Structure 13565 · Newaygo County, MI

Osborn Avenue over Cedar Creek

Carries Osborn Avenue over Cedar Creek, 2 Mi N Of 13 Mile RD.

Overall conditionFair

Set by its lowest-rated component: Culvert at 5 of 9.

How ratings work
Culvertsets the rating5/9 · Fair
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
20 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 5/9

A culvert 20 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.

Built195967 years old
Length20.3 ft6.2 m
Daily traffic50counted 2010
Last inspectedJune 2024every 24 months

Location

StateMichigan
CountyNewaygo
Location2 Mi N Of 13 Mile RD
CarriesOsborn Avenue
CrossesCedar Creek
Coordinates43.76990, -85.94971

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length20.3 ft (6.2 m)
Max Span8.2 ft (2.5 m)
Deck Area52.7 sq m
Main Spans2
Year Built1959

Traffic

Avg Daily Traffic50 (2010)
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000000013565

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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