Structure 4988 · Kent County, MI

Us-131 NB over North Park ST

Carries Us-131 NB over North Park ST, 0.3 Mi N Of I-96.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT135 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 7/9

135 ft end to end, longest span 63 ft. 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.

Built1969rebuilt 1998
Length134.8 ft41.1 m
Daily traffic25,871counted 2007
Last inspectedJune 2023every 24 months

Location

StateMichigan
CountyKent
Location0.3 Mi N Of I-96
CarriesUs-131 NB
CrossesNorth Park ST
Coordinates43.02497, -85.66598

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length134.8 ft (41.1 m)
Max Span63.0 ft (19.2 m)
Deck Width67.3 ft (20.5 m)
Deck Area842.5 sq m
Main Spans3
Year Built1969 (reconstructed 1998)

Traffic

Avg Daily Traffic25,871 (2007)
Truck Traffic7%
Lanes On Bridge3
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000004988

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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