Structure P67076900000000 · Waukesha County, WI

Lrd Lisbon RD over Butler Ditch

Carries Lrd Lisbon RD over Butler Ditch, 0.6m S Jct Cth K.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT33 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

33 ft end to end. Lengths and the car 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.

Built1924rebuilt 1971
Length33.1 ft10.1 m
Daily traffic2,900counted 2022
Last inspectedOctober 2024every 24 months

Location

StateWisconsin
CountyWaukesha
Location0.6m S Jct Cth K
CarriesLrd Lisbon RD
CrossesButler Ditch
Coordinates43.09990, -88.08520

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length33.1 ft (10.1 m)
Max Span21.0 ft (6.4 m)
Deck Width40.0 ft (12.2 m)
Deck Area123.2 sq m
Main Spans1
Year Built1924 (reconstructed 1971)

Traffic

Avg Daily Traffic2,900 (2022)
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure NumberP67076900000000

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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