Structure B17008600000000 · Dunn County, WI

Lrd 890th ST over Gilbert Creek

Carries Lrd 890th ST over Gilbert Creek, 0.2m S Jct Sth 29.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure9/9 · Excellent
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT76 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 9/9Substructure 7/9

76 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
Length76.1 ft23.2 m
Daily traffic1,160counted 2022
Last inspectedJuly 2024every 48 months

Location

StateWisconsin
CountyDunn
Location0.2m S Jct Sth 29
CarriesLrd 890th ST
CrossesGilbert Creek
Coordinates44.87409, -91.94243

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length76.1 ft (23.2 m)
Max Span74.1 ft (22.6 m)
Deck Width42.0 ft (12.8 m)
Deck Area297.0 sq m
Main Spans1
Year Built1979

Traffic

Avg Daily Traffic1,160 (2022)
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 48 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberB17008600000000

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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