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Posted on September 26, 2019 at 1:09 PM by Ryan Hiniker
Drainage update 9/26/2019
Upcoming Drainage Hearings or Meetings:
Things have been rather busy the last couple weeks. We still have a lot of repair work from earlier this year, as well as the work that keeps coming in. This fall will be very busy with repairs, some of them very small while others are rather large.
Our contractor has been out mowing and spraying ditches in the western part of the county over the last month or so. The contractor has spraying for the year and mowing will continue again after harvest season, weather permitting.
We should have a couple of large-scale cleanings of open ditch systems coming up later this year, two in particular may cover almost thirteen miles of open ditch. These cleaning include cleaning of sediment, tree and brush removal, reshaping of side slopes, new culverts, new water quality structures and buffer grass seeding.
Both of these jobs will be large enough that they will be put out for public bidding. We hope to have them bid later this year and completed before planting season next spring.
We are moving forward with our iron/phosphorus filter project near Lake Crystal. We will be installing this filter along a branch of public county tile line. The filter will clean out sediment and phosphorus from the tile line water before it goes to the CD56 open ditch.
The filter is designed to handle only normal flow situations. With large rain events, where the tile is running at full capacity, most of the water will bypass the filter and drain straight to the ditch, as it currently does.
To my knowledge, this subsurface phosphorus filter will be the first of its kind in the state of Minnesota. Along with being the first, there are unknowns such as whether or not the filter will work and how effective it will be. We have seen great results with similar subsurface phosphorus filters in other states.
We hope to start installing the new filter right after the neighboring bean field is harvested. We are very fortunate to be able to work with so many great local groups to accomplish this. I will keep everyone informed of any updates, including photos of the process.
Have a great week everyone and enjoy the great weather.
Recent Drainage Inspections – week of September 16 – September 20:
No blog next week as I will be on vacation. We will resume blog the week of October 7, but it may be a mid-week posting.
Mowing will resume after harvest for some southern portions of the county.
We require that all repairs to a county drainage system (tile or open ditch) be authorized by one us in the drainage office, either Craig or myself, before any repairs are made.
Drainage Management Specialist