View All Posts

Jun 24

Changing Climate and a Changing Drainage Technology

Posted on June 24, 2016 at 4:14 PM by Ryan Hiniker

Drainage update 6/24/2016

Project updates:

·       CD34 (Judson Twp.) progress is still going with two crews making system improvements

·       CD28 (Lincoln Twp.) contractor is set to start back up next week

·       CD78 (Vernon Center Twp.) final touches and some seeding

Change in climate also brings change in drainage:

The change in climate over the past decade has also brought about a change in how we manage our water and drainage systems.  Fun fact: did you know that 40% of all tillable ground in the Midwest has some sort of water drainage system on it.  With the huge demand for more drain tile, has also come larger demands for better stewardship of the land and water.  One of the best tools being widely used today - especially in Iowa - to help clean up Nitrogen in our water is a woodchip bioreactor.  It sounds quite complex, but when looking at how it’s designed and how they work, they’re surprisingly simple.  I know for a fact that there are a few installed locally in the area with more to come as clean water standards get tougher.  If you’re looking to learn more about this specific bioreactor or other new clean water systems feel free to attend the “Water Quality Workshop”.  I personally look forward to attending, I’m always trying to be on the forefront of what’s new out there for water quality and technology.  Here is the front of the invite, click here for more details:

water quality workshop pg. 2 


Recent Drainage Inspections – week of June 6 – June 10

·      CD96 (Danville Twp.) the new concrete weir structure is doing its job of holding back water, and newly planted grass waterways look excellent.

·      CD56 (Garden City Twp.)  There are a few lingering issues from last week's storm with silt forming around some of the culvert structures in Lake Crystal.

·      CD12 (Mankato Twp.) this is part of the new development located near the new middle school being constructed.  A few new side intakes were left to be installed along with additional shaping and grass planting.  Considering the super wet conditions of this site, things are going well.


Upcoming Drainage Inspections – week of June 13 – 17

·         JD24 (Shelby Twp.)

·         CD91 (Sterling Twp.)

·         JD116 (Pleasant Mound Twp.)

·         CD89 (Pleasant Mound Twp.)

·         JD85 (Pleasant Mound Twp.)

·         JD82 (Pleasant Mound Twp.)

*this list is the same as last week because I did not get to inspect these yet*


Storm Damage:


Some additional photos of ongoing storm damage.  The Cambria area seemed to take the worst of the weather and damage.
cd28 full ditch

CD28 full ditch after latest storms
cd28 blowout
CD28 blowout and tile collapse after our recent storms.

             Ryan Hiniker
Drainage Management Specialist