Structure 14402 · Isabella County, MI

Shepherd RD over Sharps Creek

Carries Shepherd RD over Sharps Creek, 50 Ft N Of Vernon RD.

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
22 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 4/9

A culvert 22 ft across with 3 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.

Built196957 years old
Length22.0 ft6.7 m
Daily traffic85counted 2021
Last inspectedApril 2024every 12 months

Location

StateMichigan
CountyIsabella
Location50 Ft N Of Vernon RD
CarriesShepherd RD
CrossesSharps Creek
Coordinates43.72830, -84.68740

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length22.0 ft (6.7 m)
Max Span5.9 ft (1.8 m)
Deck Area48.9 sq m
Main Spans3
Year Built1969

Traffic

Avg Daily Traffic85 (2021)
Truck Traffic2%
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 Number000000000014402

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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