Structure B67015500000000 · Waukesha County, WI

Sth 16 WB over Oconomowoc River

Carries Sth 16 WB over Oconomowoc River, 0.5 Mi E Jct Sth 67.

Overall conditionGood

Set by its lowest-rated component: Deck and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT82 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

82 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.

Built198937 years old
Length81.7 ft24.9 m
Daily traffic10,700counted 2022
Last inspectedNovember 2021every 46 months

Location

StateWisconsin
CountyWaukesha
Location0.5 Mi E Jct Sth 67
CarriesSth 16 WB
CrossesOconomowoc River
Coordinates43.10727, -88.47035

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length81.7 ft (24.9 m)
Max Span80.1 ft (24.4 m)
Deck Width43.0 ft (13.1 m)
Deck Area326.2 sq m
Main Spans1
Year Built1989

Traffic

Avg Daily Traffic10,700 (2022)
Truck Traffic13%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2021
Inspection FrequencyEvery 46 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberB67015500000000

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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