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Jul 10

Drainage Update 7/10/2017

Posted on July 10, 2017 at 3:50 PM by Ryan Hiniker

Drainage update 7/10/2017


Upcoming Drainage Hearings or Meetings:


No upcoming meetings are scheduled as of this time.



Project Updates:


·         CD28 (Lincoln Twp.)  For the most part this project is done.  There are just a few small clean up items to finish, but otherwise the major stuff is finished.  The contractor removed all their large equipment last week.  Seeding and reshaping some areas was taking place late last week.  A few final items to address with tile hook-ups remain, then this project will be complete.


·         CD86 (Beauford Twp.)  DMI finished midafternoon on Friday, July 7, with the additional tile on this repair project.  The site is graded and water is running nicely in our newly installed tile.  Minus maybe a few clean up items to address, this project is also considered done.


·         CD56 (Garden City Twp.)  This simple ditch cleaning project has turned out to be more challenging than originally thought. The contractor is moving at a slower pace due in part to the issues of debris in the ditch and very saturated ditch banks.  We have many areas of ditch bank sloughing, but the extreme westerly side of Garden City Township, where the ditch crosses into Lincoln Township, seems to be the epicenter for the most slough issues.  The issue is very steep side slopes on the ditch banks and water weeping through the ditch banks, making the soil on the side slopes very wet and highly unstable.  Normal slough repair methods are not working, so we are trying a method we’ve used before on other ditches.  We are installing areas of “toe drains”, basically a small tile that’s installed down at the level of where the water is seeping out into the ditch.  These tiles are usually 4 or 6 inch tiles installed parallel with the ditch.  The reason for doing this method is to catch the seeping water before it saturates the ditch bank anymore and causes even more erosion.  We have used this “toe drain” system on other ditches with very similar issues and have had very good results.


·         CD12 (Mankato Twp.)  Fairly quiet at this construction site lately.  Things will start to get busier soon as the Blue Earth County Highway Department has awarded the CSAH 12 expansion project to a contractor.  Our drainage ditch goes right under the road that is getting expanded and redone.  When that new culvert is installed, that will make a huge difference in the drainage of CD12.  The new road crossing will be installed at the proper legal ditch grade and then our contractor can start with their ditch cleaning.  Things should move along fairly quickly once the new crossing is installed.


Drainage Minutes:


This last week was a very busy week.  Two of the three days we held landowner meetings.  In between preparing and hosting landowner meetings, we still have multiple projects going on at the same time.  It’s a huge sense of relief to have two of our major projects for the year done.  CD28 and CD86 are both (for the most part) finished, minus some very minor clean-up work.  CD28 (Lincoln Twp.) was a very large project that started in the spring of 2016.  This is not our largest project ever, but it was one of the most challenging.  The challenges as many might know with Lincoln Township, besides 70 inches of rain in a season, are the extremely tough soil conditions.  We had our share of challenges along the way with this project, but the contractor did a great job of getting the new pipe in and installed under tough working conditions most of the time.

The Blue Earth County Highway 12 extension project will be starting shortly.  This is near the Blue Earth County Justice Center and the newer MNDOT building.  I’ve seen the plans for this highway project, and it will be a good size project with many challenging aspects to it.  This will be a great relief to the current Highway 22 route through town.  Mankato still seems to be expanding out that way, with the new school and new subdivisions going in around the school.  We in the drainage department look forward to the start of the Highway 12 project.  One of our drainage ditches that is currently being repaired is awaiting a new culvert on one of the crossings for the new highway.

We had three very productive landowner meetings last week.  There always seems to be issues somewhere in the county with drainage. 

We had some interesting weather in the last few days.  Hot and humid turned to very windy, violent and destructive storms Sunday night.  There are many photos and videos of the multiple tornadoes that came out of the storms that made their way through Blue Earth County.  I used to work up in the Winthrop, Minnesota area and still have friends up there.  They got anywhere from golf ball sized hail to some reports of almost softball size hail.  hailCompared to last year, locally we’ve been very fortunate as far as weather this year. 

Not much else going on in the drainage world at the moment, but a lot can happen in a one week.    



Recent Drainage Inspections – week of July 3 – July 7:


·         CD28 (Lincoln Twp.)  Project site drop-ins to check on progress of the project.

·         CD56 (Garden City Twp.)  I just stop by randomly three or more times a week to check on progress of the current repair project and to address issues that may arise.

·         CD86 (Beauford Twp.)  I tried to stop in a couple times during the week randomly as DMI finished up the additional tile to be replaced on this repair project.



Please call with issues you observe on our public drainage system, as there is a lot of open ditch and tile in our county and only two of us in the drainage department.  We will do our absolute best to service your issues and concerns as we receive them.


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.





Ryan Hiniker

Drainage Management Specialist