Structure B17012200000000 · Dunn County, WI

Lrd 750th AVE (dea over Clack Creek

Carries Lrd 750th AVE (dea over Clack Creek, 0.2m W Jct Sth 79.

Overall conditionGood

Set by its lowest-rated component: Deck at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure9/9 · Excellent
Substructure9/9 · Excellent
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT39 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 9/9Substructure 9/9

39 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.

Built199036 years old
Length38.7 ft11.8 m
Daily traffic25counted 2024
Last inspectedJuly 2024every 48 months

Location

StateWisconsin
CountyDunn
Location0.2m W Jct Sth 79
CarriesLrd 750th AVE (dea
CrossesClack Creek
Coordinates44.95178, -91.98100

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length38.7 ft (11.8 m)
Max Span37.1 ft (11.3 m)
Deck Width25.9 ft (7.9 m)
Deck Area93.2 sq m
Main Spans1
Year Built1990

Traffic

Avg Daily Traffic25 (2024)
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 48 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberB17012200000000

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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