Structure B40010800000000 · Milwaukee County, WI

Sth 100 Nb-s 108th over Hast (abandoned Cmstpp R

Carries Sth 100 Nb-s 108th over Hast (abandoned Cmstpp R, 0.7 Mi N Jct Sth 59.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck8/9 · Very Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT161 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 7/9Substructure 6/9 · sets the rating

161 ft end to end, longest span 64 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.

Built1961rebuilt 1985
Length160.8 ft49 m
Daily traffic12,650counted 2022
Last inspectedAugust 2024every 24 months

Location

StateWisconsin
CountyMilwaukee
Location0.7 Mi N Jct Sth 59
CarriesSth 100 Nb-s 108th
CrossesHast (abandoned Cmstpp R
Coordinates43.02739, -88.04702

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length160.8 ft (49 m)
Max Span64.0 ft (19.5 m)
Deck Width51.2 ft (15.6 m)
Deck Area764.4 sq m
Main Spans3
Year Built1961 (reconstructed 1985)

Traffic

Avg Daily Traffic12,650 (2022)
Truck Traffic3%
Lanes On Bridge3

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 NumberB40010800000000

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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