Structure 9270 · Saginaw County, MI

Dixie Highway over Half Moon Drain

Carries Dixie Highway over Half Moon Drain, 0.4 Mi N Of Canada Road.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT43 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

43 ft end to end, longest span 20 ft. Lengths and the car on the deck are drawn to the same scale. 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.

Built193195 years old
Length43.0 ft13.1 m
Daily traffic5,111counted 2015
Last inspectedNovember 2023every 24 months

Location

StateMichigan
CountySaginaw
Location0.4 Mi N Of Canada Road
CarriesDixie Highway
CrossesHalf Moon Drain
Coordinates43.27006, -83.78431

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length43.0 ft (13.1 m)
Max Span20.0 ft (6.1 m)
Deck Width57.7 ft (17.6 m)
Deck Area230.6 sq m
Main Spans2
Year Built1931

Traffic

Avg Daily Traffic5,111 (2015)
Truck Traffic7%
Lanes On Bridge4

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalUnknown
Structure Number000000000009270

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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