Structure B17022600000000 · Dunn County, WI

Sth 85 over Rock Creek

Carries Sth 85 over Rock Creek, 5.2m E Jct Cth O.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructure9/9 · Excellent
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT141 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9 · sets the ratingSuperstructure 8/9 · sets the ratingSubstructure 9/9

141 ft end to end. 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.

Built20215 years old
Length141.4 ft43.1 m
Daily traffic2,800counted 2023
Last inspectedAugust 2024every 48 months

Location

StateWisconsin
CountyDunn
Location5.2m E Jct Cth O
CarriesSth 85
CrossesRock Creek
Coordinates44.71842, -91.69603

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length141.4 ft (43.1 m)
Max Span137.1 ft (41.8 m)
Deck Width39.0 ft (11.9 m)
Deck Area512.9 sq m
Main Spans1
Year Built2021

Traffic

Avg Daily Traffic2,800 (2023)
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberB17022600000000

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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