Structure P17010200000000 · Dunn County, WI

Lrd 360th ST (dead over Clack Creek

Carries Lrd 360th ST (dead over Clack Creek, 0.3m N Jct Sth 79.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 4 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating4/9 · Poor
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT26 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 4/9 · sets the rating

26 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.

Built193492 years old
Length25.6 ft7.8 m
Daily traffic29counted 2024
Last inspectedJuly 2024every 12 months

Location

StateWisconsin
CountyDunn
Location0.3m N Jct Sth 79
CarriesLrd 360th ST (dead
CrossesClack Creek
Coordinates44.96218, -91.98081

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length25.6 ft (7.8 m)
Max Span24.0 ft (7.3 m)
Deck Width22.6 ft (6.9 m)
Deck Area53.8 sq m
Main Spans1
Year Built1934

Traffic

Avg Daily Traffic29 (2024)
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 12 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberP17010200000000

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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