Structure 1853 · Clinton County, MI

I-69BR EB Ramp D over I-69

Carries I-69BR EB Ramp D over I-69, 3 Mi NE Of East Lansing.

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 FT300 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 7/9

300 ft end to end, longest span 110 ft: about 4 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.

Built198541 years old
Length299.5 ft91.3 m
Daily traffic8,945counted 2007
Last inspectedMay 2024every 24 months

Location

StateMichigan
CountyClinton
Location3 Mi NE Of East Lansing
CarriesI-69BR EB Ramp D
CrossesI-69
Coordinates42.78223, -84.40880

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length299.5 ft (91.3 m)
Max Span110.2 ft (33.6 m)
Deck Width31.2 ft (9.5 m)
Deck Area867.4 sq m
Main Spans4
Year Built1985

Traffic

Avg Daily Traffic8,945 (2007)
Truck Traffic21%
Lanes On Bridge1
Lanes Under Bridge5

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000001853

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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