Structure B05067800000000 · Brown County, WI

IH 43 NB Off Ramp over IH I41 NB

Carries IH 43 NB Off Ramp over IH I41 NB, At 41 NB.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT3,989 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

3,989 ft end to end, longest span 247 ft: about 11 football fields. 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 box-beam bridge.

Built201511 years old
Length3988.8 ft1215.8 m
Daily traffic13,000counted 2021
Last inspectedJune 2023every 48 months

Location

StateWisconsin
CountyBrown
LocationAt 41 NB
CarriesIH 43 NB Off Ramp
CrossesIH I41 NB
Coordinates44.55584, -88.04603

Physical Characteristics

MaterialSteel Continuous
DesignBox Beam - Single/Spread
Total Length3988.8 ft (1215.8 m)
Max Span247.0 ft (75.3 m)
Deck Width44.9 ft (13.7 m)
Deck Area16656.5 sq m
Main Spans13
Year Built2015

Traffic

Avg Daily Traffic13,000 (2021)
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberB05067800000000

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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