Structure B40008600000000 · Milwaukee County, WI

IH 94 EB over Lrd S 70th ST

Carries IH 94 EB over Lrd S 70th ST, 1.0 Mi 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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT182 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

182 ft end to end, longest span 73 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.

Built1963rebuilt 1973
Length182.4 ft55.6 m
Daily traffic79,000counted 2022
Last inspectedJune 2024every 24 months

Location

StateWisconsin
CountyMilwaukee
Location1.0 Mi E Jct Sth 181
CarriesIH 94 EB
CrossesLrd S 70th ST
Coordinates43.02979, -88.00010

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length182.4 ft (55.6 m)
Max Span73.2 ft (22.3 m)
Deck Width63.3 ft (19.3 m)
Deck Area1073.1 sq m
Main Spans3
Year Built1963 (reconstructed 1973)

Traffic

Avg Daily Traffic79,000 (2022)
Truck Traffic1%
Lanes On Bridge4
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberB40008600000000

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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