Structure 6861 · Menominee County, MI

Deerpark Drive over Little River

Carries Deerpark Drive over Little River, 2 Mi. NW Of Menominee.

Overall conditionPoor

Set by its lowest-rated component: Superstructure and Substructure at 4 of 9.

How ratings work
Deck5/9 · Fair
Superstructuresets the rating4/9 · Poor
Substructuresets the rating4/9 · Poor
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT50 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9 · sets the ratingSubstructure 4/9 · sets the rating

50 ft end to end. 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 multi-beam bridge.

Built192898 years old
Length49.9 ft15.2 m
Daily traffic292counted 1998
Last inspectedJune 2024every 12 months

Location

StateMichigan
CountyMenominee
Location2 Mi. NW Of Menominee
CarriesDeerpark Drive
CrossesLittle River
Coordinates45.15241, -87.66181

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length49.9 ft (15.2 m)
Max Span34.8 ft (10.6 m)
Deck Width16.1 ft (4.9 m)
Deck Area74.5 sq m
Main Spans1
Year Built1928

Traffic

Avg Daily Traffic292 (1998)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number000000000006861

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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