Structure B09007800000000 · Chippewa County, WI

Sth 40-17th ST over Ush 53

Carries Sth 40-17th ST over Ush 53, 2.0m N Jct Cth A.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT319 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

319 ft end to end, longest span 156 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.

Built197155 years old
Length318.9 ft97.2 m
Daily traffic7,600counted 2022
Last inspectedMay 2023every 24 months

Location

StateWisconsin
CountyChippewa
Location2.0m N Jct Cth A
CarriesSth 40-17th ST
CrossesUsh 53
Coordinates45.09965, -91.50458

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length318.9 ft (97.2 m)
Max Span155.8 ft (47.5 m)
Deck Width70.9 ft (21.6 m)
Deck Area2099.5 sq m
Main Spans2
Year Built1971

Traffic

Avg Daily Traffic7,600 (2022)
Truck Traffic6%
Lanes On Bridge3
Lanes Under Bridge4

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberB09007800000000

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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