Structure 2293 · Eaton County, MI

Creyts RD NB over I-496

Carries Creyts RD NB over I-496, 3.0 Mi W Of Lansing.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT191 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

191 ft end to end, longest span 94 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 girder bridge.

Built196957 years old
Length190.9 ft58.2 m
Daily traffic2,000counted 1991
Last inspectedOctober 2023every 24 months

Location

StateMichigan
CountyEaton
Location3.0 Mi W Of Lansing
CarriesCreyts RD NB
CrossesI-496
Coordinates42.71960, -84.64243

Physical Characteristics

MaterialSteel Continuous
DesignGirder and Floorbeam
Total Length190.9 ft (58.2 m)
Max Span93.8 ft (28.6 m)
Deck Width36.4 ft (11.1 m)
Deck Area646.0 sq m
Main Spans2
Year Built1969

Traffic

Avg Daily Traffic2,000 (1991)
Truck Traffic1%
Lanes On Bridge2
Lanes Under Bridge6

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000002293

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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