Structure B40076800000000 · Milwaukee County, WI

Lrd Perimeter Road over Cth Zz

Carries Lrd Perimeter Road over Cth Zz, .2m Xing Of Howell AVE.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT192 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

192 ft end to end, longest span 94 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.

Built201214 years old
Length191.9 ft58.5 m
Daily traffic17,600counted 2022
Last inspectedAugust 2024every 48 months

Location

StateWisconsin
CountyMilwaukee
Location.2m Xing Of Howell AVE
CarriesLrd Perimeter Road
CrossesCth Zz
Coordinates42.92977, -87.90131

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length191.9 ft (58.5 m)
Max Span94.2 ft (28.7 m)
Deck Width34.4 ft (10.5 m)
Deck Area614.2 sq m
Main Spans2
Year Built2012

Traffic

Avg Daily Traffic17,600 (2022)
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 48 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberB40076800000000

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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