Structure 9926 · St. Clair County, MI

I-69 WB over South Branch Pine River

Carries I-69 WB over South Branch Pine River, 1.2 Mi SE Of Goodells.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT186 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 7/9

186 ft end to end, longest span 62 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.

Built198046 years old
Length186.0 ft56.7 m
Daily traffic6,532counted 2013
Last inspectedNovember 2024every 24 months

Location

StateMichigan
CountySt. Clair
Location1.2 Mi SE Of Goodells
CarriesI-69 WB
CrossesSouth Branch Pine River
Coordinates42.97551, -82.64468

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length186.0 ft (56.7 m)
Max Span62.0 ft (18.9 m)
Deck Width45.9 ft (14 m)
Deck Area793.8 sq m
Main Spans3
Year Built1980

Traffic

Avg Daily Traffic6,532 (2013)
Truck Traffic22%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical7 — Countermeasures installed
Structure Number000000000009926

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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