Supervisors discuss DD133 annexation, drainage tile designs and petition process; appointments and engineer representation remain under consideration

Kossuth County supervisors discussed drainage district matters including an upcoming voluntary annexation and road crossing public hearing for Drainage District (DD) 133, technical questions about tile sizing and drainage coefficients, and multiple repair and improvement requests from landowners.

Staff said a public hearing for voluntary annexation into DD133 was scheduled for 8:00 a.m. on the county calendar. Engineering staff and supervisors discussed whether county legal counsel should be available to answer questions at that hearing; staff said they could request attorney Jim Hudson be available by phone and recommended having a legal representative ready to respond to questions if needed.

A substantial portion of the discussion focused on the technical size of tile and who determines the adequacy of a pipe or tile placed under a county road. County engineering staff said a half-inch hydraulic coefficient is a commonly recommended standard and that the design under consideration appeared to exceed a half-inch coefficient; staff said they would confirm the coefficient with the project engineer (identified in the transcript as Colin) and discuss details with an appointed engineer if necessary. Supervisors discussed trusteeship of the drain and whether a parallel connection between drainage districts was permissible; staff suggested that appointing an engineer to represent the drainage district on behalf of the county would be advisable.

Staff identified the landowner's representatives and engineers for the proposed work, noting one firm named in the record as Jacobson Westergaard; staff also said McClure Engineering had been referenced in earlier conversations. Supervisors directed staff to pursue having legal counsel available for the hearing and to consider placing an item on a future agenda to appoint an engineer to represent the drainage district on the county's behalf.

Several drainage repair and improvement requests were discussed by staff. Items referenced in the record included blowouts on tile in Plum Creek Township (a 10-inch and 12-inch tile within 200 feet of each other), a beaver dam on Black Hat Creek west of a bridge that staff said they would arrange to have removed, and other plugged or root-infested tiles in Greenwood and Eagle townships. Staff explained the petition process for improvements: the county provides a petition form, an engineer is appointed if a petition is filed, and landowner signatures are required (one owner signature suffices to initiate a petition but broader support across a district improves chances of implementation). Staff noted that improvements are charged to landowners in the drainage district rather than tenants.

Staff and supervisors discussed whether the county should provide temporary fixes in some situations. Staff said temporary patches are situational and not common practice; they may be used when a temporary measure prevents a larger environmental or financial problem before a permanent solution can be engineered and funded.

The board also handled routine approvals related to drainage office functions. Supervisors approved a motion (moved by Haas, seconded by Garman) authorizing staff to handle grant requests related to drainage matters; the motion carried unanimously.

Next steps identified by staff included confirming tile hydraulic coefficients with project engineers, arranging attorney availability for the DD133 hearing, placing an engineer-appointment item on a future agenda, and continuing to process repair and improvement petitions as submitted by landowners.