Structure 6348 · Macomb County, MI

22 Mile Road over Salt Slang Gloede Drain

Carries 22 Mile Road over Salt Slang Gloede Drain, 0.8 Mi East Of Hayes Road.

Overall conditionGood

Set by its lowest-rated component: Culvert at 8 of 9.

How ratings work
Culvertsets the rating8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
23 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 8/9

A culvert 23 ft across. 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.

Built20215 years old
Length22.6 ft6.9 m
Daily traffic15,930counted 2021
Last inspectedNovember 2023every 24 months

Location

StateMichigan
CountyMacomb
Location0.8 Mi East Of Hayes Road
Carries22 Mile Road
CrossesSalt Slang Gloede Drain
Coordinates42.65675, -82.96044

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length22.6 ft (6.9 m)
Max Span22.6 ft (6.9 m)
Deck Area84.2 sq m
Main Spans1
Year Built2021

Traffic

Avg Daily Traffic15,930 (2021)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000006348

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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