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Jersey Valley is the lone dam NRCS recommends rebuilding; county share estimated at $465,000

Vernon County Board of Supervisors · July 1, 2026
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Summary

NRCS and county staff said Jersey Valley met the federal cost-benefit threshold and could be rebuilt at an estimated $18.6 million total cost, with the county27s estimated share about $465,000; staff said municipal dam grants and in-kind county work may cover part of that share.

County staff told the Board that Jersey Valley stands apart from other PL-566 dams in Vernon County because it provides substantial recreational benefits and met NRCS27s cost-benefit threshold. "Jersey Valley is the only dam that was found to meet the cost benefit analysis of the $2 million dollar federal study," Wojahn said.

Wojahn provided a preliminary cost estimate for rebuilding: $18.6 million total, with the county27s share estimated at $465,000. He said the municipal dam grant program at the state level should cover some expenses and that the county27s in-kind staff time is anticipated to count toward part of the estimated county share. He cautioned, however, that these figures are estimates until engineering is complete and bids are accepted.

Staff stressed that even if Jersey Valley is rebuilt, other dams in the West Fork and Coon Creek watersheds are recommended for decommissioning under the preferred alternative, and that adopting the alternative would begin engineering, design and funding steps rather than finalize every detail immediately.