Structure P40083900000000 · Milwaukee County, WI

Lrd S 13th ST over Kinnickinnic River

Carries Lrd S 13th ST over Kinnickinnic River, 1.7m S Jct Sth 59.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
CAR · 15 FT67 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

67 ft end to end. Lengths and the car 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.

Built197947 years old
Length66.6 ft20.3 m
Daily traffic11,688counted 2022
Last inspectedMay 2024every 24 months

Location

StateWisconsin
CountyMilwaukee
Location1.7m S Jct Sth 59
CarriesLrd S 13th ST
CrossesKinnickinnic River
Coordinates42.99702, -87.92848

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length66.6 ft (20.3 m)
Max Span62.7 ft (19.1 m)
Deck Width52.5 ft (16 m)
Deck Area324.8 sq m
Main Spans1
Year Built1979

Traffic

Avg Daily Traffic11,688 (2022)
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberP40083900000000

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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