Flooding on the Southern Kewaskum Segment in Spring 2020. Site of boardwalk construction . Photo by Beth & Sarah Mittermaier. Published September 25, 2020 at 2560 × 1707 in Boardwalk Construction a Speedy Success! ← Previous Next → Flooding on the Southern Kewaskum Segment in Spring 2020. Photo by Beth & Sarah Mittermaier.