Archive

Mikana Dam Gate & Penstock

The Mikana Dam in Barron County, Wisconsin, consists of a split-leaf gate that is operated by a hand wheel, along with an old 4-foot-diameter penstock that has a 5-foot-wide steel bulkhead at the head of the penstock. The split leaf gate was difficult to operate with only the hand wheel, removal of the steel bulkhead… Read More »

Birch Lake Dam Repairs

The Washburn County Highway Department retained Ayres to design repairs for the Birch Lake Dam in accordance with 2016 Wisconsin Department of Natural Resources Municipal Dam Grant guidelines. The original plan for the repairs was to repair or replace the existing low level gate, which had been inoperable for several years, to make it operable… Read More »