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Wake Boat Impacts on a Small Southeast Wisconsin Lake
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Lamb, Geoff
Gardetto, Paul
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Abstract
"During the summer of 2023, the Ashippun Lake Protection and Rehabilitation District, in coordination with Southeast Wisconsin Regional Planning Commission, concluded a study of wake boat impacts on this small Southeast Wisconsin lake. Ashippun Lake is relatively small (<100 acres) and shallow (35 ft), and the lake bottom provides a significantly different bathymetric topography between north and south shores. The study investigated comparative wake heights and shoreline turbidity of a speed boat with those of a wake boat operated in wake boarding and wake surfing modes at various distances from shore. Study methodologies closely mimicked those of a recent study from the University of Minnesota. A NOAA calculator provided an estimated wind speed correlate for the various powerboat derived wakes. Results revealed a significant impact of lake bottom contour on wave height at the shore, differences between wake boarding and wake surfing waves, and a modest affect on near shore turbidity.
Presenter: Paul Gardetto and Geoff Lamb, Ashippun Lake Protection and Rehabilitation District (Innovative)"
Description
"During the summer of 2023, the Ashippun Lake Protection and Rehabilitation District, in coordination with Southeast Wisconsin Regional Planning Commission, concluded a study of wake boat impacts on this small Southeast Wisconsin lake. Ashippun Lake is relatively small (<100 acres) and shallow (35 ft), and the lake bottom provides a significantly different bathymetric topography between north and south shores. The study investigated comparative wake heights and shoreline turbidity of a speed boat with those of a wake boat operated in wake boarding and wake surfing modes at various distances from shore. Study methodologies closely mimicked those of a recent study from the University of Minnesota. A NOAA calculator provided an estimated wind speed correlate for the various powerboat derived wakes. Results revealed a significant impact of lake bottom contour on wave height at the shore, differences between wake boarding and wake surfing waves, and a modest affect on near shore turbidity.
Presenter: Paul Gardetto and Geoff Lamb, Ashippun Lake Protection and Rehabilitation District (Innovative)"