Structure 5094 · Kent County, MI

Burton Street over Conrail

Carries Burton Street over Conrail, 150 Ft East Of US 131.

Overall conditionGood

Set by its lowest-rated component: Superstructure at 7 of 9.

How ratings work
Deck8/9 · Very Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT212 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 7/9 · sets the ratingSubstructure 8/9

212 ft end to end, longest span 119 ft: about 3 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.

Built1958rebuilt 2011
Length211.9 ft64.6 m
Daily traffic23,692counted 2009
Last inspectedAugust 2023every 24 months

Location

StateMichigan
CountyKent
Location150 Ft East Of US 131
CarriesBurton Street
CrossesConrail
Coordinates42.92777, -85.68042

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length211.9 ft (64.6 m)
Max Span118.8 ft (36.2 m)
Deck Width63.3 ft (19.3 m)
Deck Area1246.8 sq m
Main Spans2
Year Built1958 (reconstructed 2011)

Traffic

Avg Daily Traffic23,692 (2009)
Truck Traffic9%
Lanes On Bridge4

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000005094

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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