Structure 5146 · Kent County, MI

Macclain Street over Woodbeck Lake

Carries Macclain Street over Woodbeck Lake, 1 Mi E Of Lincoln Lake.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT36 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

36 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 box-beam bridge.

Built197551 years old
Length35.8 ft10.9 m
Daily traffic1,378counted 2020
Last inspectedOctober 2024every 24 months

Location

StateMichigan
CountyKent
Location1 Mi E Of Lincoln Lake
CarriesMacclain Street
CrossesWoodbeck Lake
Coordinates43.19884, -85.33205

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length35.8 ft (10.9 m)
Max Span31.8 ft (9.7 m)
Deck Width33.5 ft (10.2 m)
Deck Area111.2 sq m
Main Spans1
Year Built1975

Traffic

Avg Daily Traffic1,378 (2020)
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000005146

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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