Structure B45011200000000 · Ozaukee County, WI

IH 43 Nb-sth 32 NB over Sth 57-sth 167-mequon RD

Carries IH 43 Nb-sth 32 NB over Sth 57-sth 167-mequon RD, 3.0 Mi N Jct Sth 100.

Overall conditionGood

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

How ratings work
Deck9/9 · Excellent
Superstructure9/9 · Excellent
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT178 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 9/9Superstructure 9/9Substructure 7/9 · sets the rating

178 ft end to end, longest span 87 ft: about 2 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.

Built20242 years old
Length178.5 ft54.4 m
Daily traffic34,300counted 2022
Last inspectedAugust 2024every 24 months

Location

StateWisconsin
CountyOzaukee
Location3.0 Mi N Jct Sth 100
CarriesIH 43 Nb-sth 32 NB
CrossesSth 57-sth 167-mequon RD
Coordinates43.22105, -87.92133

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length178.5 ft (54.4 m)
Max Span86.9 ft (26.5 m)
Deck Width62.7 ft (19.1 m)
Deck Area1039.0 sq m
Main Spans2
Year Built2024

Traffic

Avg Daily Traffic34,300 (2022)
Lanes On Bridge3
Lanes Under Bridge6

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberB45011200000000

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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