CHALLENGES FACING AGRICULTURAL DRAINAGE include several factors: many drainage systems are old, overloaded, and in need of maintenance and improvement; the impact of drainage on water quality and flow rates from watersheds; and increased regulations requiring drainage improvement. In addition, there have been gradual increases in rainfall in the region, resulting in increased pressure on existing drainage systems.
While there are concerns about FLOODING AND AGRICULTURAL DRAINAGE, it has been shown that agricultural drainage has little to do with major flooding events. Drainage systems may incrementally increase the rate of removal of water from soils up to the capacity of the drainage system, but major floods are generally caused by runoff events such as rapid or large snow melt and heavy rains that result in runoff rates that far exceed the capacity of drainage systems.
Senior Planner, Conservation Drainage
Mark.Dittrich@state.mn.us • 651-201-6482
Ag Marketing & Development Division