Drainage Tools Workshop



The virtual Drainage Tools Workshop had 265 registrants. At any given time, there were 89 to 131 attendees. Based on the survey immediately after the Drainage Tools Workshop, 40 of 71 respondents (56%) said they plan on using the tools taught in their work.


Workshop information

Download Flyer and Agenda


Workshop Recording

(Video recordings)


The 2021 Drainage Tools Workshop was held virtually on August 24, 2021 from 9:00 am to 3:00 pm ET. Learn the basics of using tools to make informed decisions about drainage for crop production and water-quality protection.

What does this workshop cover?

  • Drainage Design as a Nutrient Reduction Strategy: Learn how drain spacing and depth affects water quality and crop yield.
  • Drain Spacing Tool: Learn the basics of using the tool to estimate the optimum drain spacing that maximizes economic return on investment.
  • Controlled Drainage Suitability Tool: Learn to identify land in the Midwest USA with a high chance of being suitable for controlled drainage.
  • Subirrigation Suitability Tool: Learn to identify land in the Midwest USA with a high chance of being suitable for subirrigation.
  • Drainage Water Recycling: Learn about the features, site suitability, crop yield benefit, profitability, and water-quality benefit of drainage water recycling.
  • EDWRD Tool (Evaluating Drainage Water Recycling Decisions): Learn the basics of using the tool to size a pond for drainage water recycling.
  • Shallow Drains Tool: Learn to use the tool to make an informed decision about drain depth. The tool estimates the nitrate load reduction of shallow drains compared to deep drains.
  • Reducing Phosphorus Loss with P-filters: Learn about the features, site selection, maintenance, installation, and water-quality benefit of P-filters.
  • P-TRAP Phosphorus Transport Reduction App: Learn the basics of using the P-TRAP app to design a P-filter for reducing phosphorus loss in drainage discharge.
  • Drain Sedimentation Tool: Learn to use the tool to identify soil at risk of drain sedimentation (sediment clogging the drain).
  • Nutrient Loss Calculator: Learn to use the tool to get an idea of nutrient loss from your tile, so you can improve profitability and downstream water quality. Listen to real-world examples of how producers are modifying their farming practices based on the tool's results.



  • Ehsan Ghane: Assistant Professor and Extension Specialist, Michigan State University
  • Jane Frankenberger: Professor, Purdue University
  • Ben Reinhart: Director of Operations and Ag Water Management, Clark Farm Drainage
  • Chad Penn: Soil Scientist, USDA Agricultural Research Service
  • John McMaine: Assistant Professor, South Dakota State University


Who should attend?

Drainage contractors, farmers, consultants, conservation professionals, engineers, MAEAP technicians, watershed coordinators, technical service providers, Extension educators, and others interested in learning about drainage tools for crop production and environmental protection.