Structure 904 · Berrien County, MI

Snow Road over Us-31

Carries Snow Road over Us-31, 4.6 Mi SW Of Berrien Sprg.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT344 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

344 ft end to end, longest span 172 ft: about 5 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.

Built199531 years old
Length343.8 ft104.8 m
Daily traffic2,911counted 1993
Last inspectedMay 2024every 24 months

Location

StateMichigan
CountyBerrien
Location4.6 Mi SW Of Berrien Sprg
CarriesSnow Road
CrossesUs-31
Coordinates41.93018, -86.36128

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length343.8 ft (104.8 m)
Max Span171.9 ft (52.4 m)
Deck Width47.2 ft (14.4 m)
Deck Area1509.1 sq m
Main Spans2
Year Built1995

Traffic

Avg Daily Traffic2,911 (1993)
Truck Traffic3%
Lanes On Bridge2
Lanes Under Bridge6

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number000000000000904

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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