Structure B64003200000000 · Walworth County, WI

Ush 12 WB over Sth 120

Carries Ush 12 WB over Sth 120, 1.2 Mi W Jct Sth 50.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT190 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

190 ft end to end, longest span 93 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.

Built1967rebuilt 2003
Length189.6 ft57.8 m
Daily traffic11,850counted 2022
Last inspectedApril 2023every 24 months

Location

StateWisconsin
CountyWalworth
Location1.2 Mi W Jct Sth 50
CarriesUsh 12 WB
CrossesSth 120
Coordinates42.60871, -88.42072

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length189.6 ft (57.8 m)
Max Span92.8 ft (28.3 m)
Deck Width52.5 ft (16 m)
Deck Area924.8 sq m
Main Spans2
Year Built1967 (reconstructed 2003)

Traffic

Avg Daily Traffic11,850 (2022)
Truck Traffic8%
Lanes On Bridge3
Lanes Under Bridge4

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberB64003200000000

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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