Structure B37023200000000 · Marathon County, WI

Sth 52-bridge ST over Cmstpp Rr

Carries Sth 52-bridge ST over Cmstpp Rr, 0.2m W Jct Sth 52 WB.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT814 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

814 ft end to end, longest span 160 ft: about 2.3 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 multi-beam bridge.

Built198739 years old
Length814.3 ft248.2 m
Daily traffic27,748counted 2024
Last inspectedSeptember 2024every 48 months

Location

StateWisconsin
CountyMarathon
Location0.2m W Jct Sth 52 WB
CarriesSth 52-bridge ST
CrossesCmstpp Rr
Coordinates44.96948, -89.63281

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length814.3 ft (248.2 m)
Max Span160.1 ft (48.8 m)
Deck Width63.3 ft (19.3 m)
Deck Area4790.3 sq m
Main Spans7
Year Built1987

Traffic

Avg Daily Traffic27,748 (2024)
Lanes On Bridge4

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 48 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberB37023200000000

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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