Structure B40074600000000 · Milwaukee County, WI

Ush 45 SB - Sth 10 over Cth Bb (rawson Ave)

Carries Ush 45 SB - Sth 10 over Cth Bb (rawson Ave), 1.8 Mi N Jct Sth 36.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT254 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

254 ft end to end, longest span 125 ft: about 4 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.

Built201115 years old
Length254.3 ft77.5 m
Daily traffic9,650counted 2021
Last inspectedSeptember 2021every 48 months

Location

StateWisconsin
CountyMilwaukee
Location1.8 Mi N Jct Sth 36
CarriesUsh 45 SB - Sth 10
CrossesCth Bb (rawson Ave)
Coordinates42.91441, -88.04544

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length254.3 ft (77.5 m)
Max Span125.0 ft (38.1 m)
Deck Width62.0 ft (18.9 m)
Deck Area1464.8 sq m
Main Spans2
Year Built2011

Traffic

Avg Daily Traffic9,650 (2021)
Truck Traffic4%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionSeptember 2021
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberB40074600000000

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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