Structure 9446 · Saginaw County, MI

Genesee AVE over Saginaw River

Carries Genesee AVE over Saginaw River, In City Of Saginaw.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 3 of 9.

How ratings work
Deck7/9 · Good
Superstructure5/9 · Fair
Substructuresets the rating3/9 · Serious
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT475 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9Substructure 3/9 · sets the rating

475 ft end to end, longest span 112 ft: about 7 semi-trucks nose to tail. Lengths and the semi-truck 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 multi-beam bridge.

Built197353 years old
Length475.1 ft144.8 m
Daily traffic16,546counted 2014
Last inspectedMay 2024every 12 months

Location

StateMichigan
CountySaginaw
LocationIn City Of Saginaw
CarriesGenesee AVE
CrossesSaginaw River
Coordinates43.43357, -83.94079

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length475.1 ft (144.8 m)
Max Span111.9 ft (34.1 m)
Deck Width65.9 ft (20.1 m)
Deck Area2910.5 sq m
Main Spans6
Year Built1973

Traffic

Avg Daily Traffic16,546 (2014)
Truck Traffic2%
Lanes On Bridge4

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 12 months
OwnerCity/Municipal Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical4 — Foundations need monitoring
Structure Number000000000009446

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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