Structure B40060300000000 · Milwaukee County, WI

Ush 18-w Wisconsin over Lrd N 44th ST

Carries Ush 18-w Wisconsin over Lrd N 44th ST, 2.5m E Jct Sth 181.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,457 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

1,457 ft end to end, longest span 158 ft: about 4.0 football fields. 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 deck arch.

Built199333 years old
Length1457.3 ft444.2 m
Daily traffic13,400counted 2022
Last inspectedJune 2023every 24 months

Location

StateWisconsin
CountyMilwaukee
Location2.5m E Jct Sth 181
CarriesUsh 18-w Wisconsin
CrossesLrd N 44th ST
Coordinates43.03876, -87.96818

Physical Characteristics

MaterialPrestressed Concrete
DesignArch - Deck
Total Length1457.3 ft (444.2 m)
Max Span158.1 ft (48.2 m)
Deck Width67.6 ft (20.6 m)
Deck Area9150.5 sq m
Main Spans8
Year Built1993

Traffic

Avg Daily Traffic13,400 (2022)
Truck Traffic3%
Lanes On Bridge4
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberB40060300000000

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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