Residents press county and state agencies over Mud Lake control-structure permits and costs

At a joint commissioners and drainage-board meeting, state and county staff described the status of permits and engineering for a proposed permanent control structure at Mud Lake while residents urged quicker action and raised questions about cost and liability.

Lydia Gibson, the project file manager with the state review team, said the permit files ("33627" and "DR593") are currently with fish-and-wildlife, hydraulic/hydrology and geotechnical reviewers and that those reviews "typically have about 30 days" to complete and may issue deficiency notices that pause the review clock. "A DNR permit is active for two years and can be renewed," Gibson added when residents asked about permit validity.

Engineers described the plan as a sheet-pile weir-type control structure. Seth Farmer, an engineer with the state division of water, said the design includes sheet piling driven into the ground with a cutout to allow fish passage during flood events while holding the lake nearer its historic elevation. Staff noted plan elevations shown in the sheets — one reviewer referenced "853.4" and the engineer mentioned an "850 max" value — and said they would…