Viewers outline methods and recommended benefits in County Ditch 23 redetermination; residents raise questions about wetlands and municipal runoff

The Carver County Ditch Authority heard the viewers’ final report for County Ditch 23 (CD 23), including watershed mapping, land‑classification methodology and recommended benefit and damage amounts. Members of the public raised concerns about the effect of wetlands and municipal stormwater on how benefits should be allocated.

Scott Henderson, lead viewer, summarized the process used for CD 23: compile the ditch alignment from county GIS; use LIDAR‑derived elevation data to establish watershed boundaries; ground‑truth culverts, crossings and features in the field; and classify land into four agricultural classes that receive different per‑acre benefit values. Henderson explained viewers also grade the ditch capacity against an engineering drainage coefficient; areas draining to sub‑optimum branches receive percentage reductions in benefits.

For CD 23 Henderson reported a very large watershed footprint: approximately 40,500 acres in the overall watershed with roughly 17,000 acres proposed as benefited area in the tabular report. He said current listed benefits (on the rolls) were minimal by comparison — his presentation cited current benefits around $15,800 and a viewers’ recommended total near $13,800,000; the viewers recommended damage payments for roughly 36 acres, with a notional dollar figure shown in the owners’ packet.

During public comment, landowner Mike Klingelhutts asked the viewers to reconsider whether a large wetland and Reed Lake should remove portions of upstream drainage from assessment because of lake attenuation. Klingelhutts also asked whether municipal stormwater from the City of Waconia and the local high school had been included; counsel and staff explained that where municipal drainage already discharges to a public drainage system, those uses are typically accounted for in the viewers’ municipal benefit calculation and that the redetermination process can incorporate municipal contributions without separate outlet proceedings under other statutory sections. Klingelhutts also pressed staff for a records check and submitted written comments that the record received and staff said would remain part of the hearing record.

County staff and counsel described how assessments would be translated into parcel assessments if the board adopts the viewers’ recommendations. Staff said the percent‑of‑total benefit shown in each owners’ report converts project costs into a landowner assessment: the assessment equals the landowner’s percentage of the system multiplied by the total project cost the board later approves. Staff confirmed that, once the board approves costs and an assessment plan, property owners will be notified and given the option of paying off assessments before they appear on property tax statements; the board could also authorize multi‑year installments with interest for larger projects.

No final action adopting findings was taken at the CD 23 hearing; the viewers’ report and owners’ packet remain in the county record for review and any follow‑up board action would be scheduled as a separate agenda item.