Structure B70027200000000 · Winnebago County, WI

Lrd Lake Butte Des over IH 41

Carries Lrd Lake Butte Des over IH 41, 0.2 Mi N Of Lake Bdm.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT436 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

436 ft end to end, longest span 115 ft: about 6 semi-trucks nose to tail. 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.

Built201016 years old
Length435.7 ft132.8 m
Daily traffic500counted 2023
Last inspectedJune 2023every 24 months

Location

StateWisconsin
CountyWinnebago
Location0.2 Mi N Of Lake Bdm
CarriesLrd Lake Butte Des
CrossesIH 41
Coordinates44.05513, -88.57575

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length435.7 ft (132.8 m)
Max Span115.2 ft (35.1 m)
Deck Width55.1 ft (16.8 m)
Deck Area2231.0 sq m
Main Spans4
Year Built2010

Traffic

Avg Daily Traffic500 (2023)
Lanes On Bridge2
Lanes Under Bridge10

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberB70027200000000

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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