Effectiveness of a Roadside Two-Stage Ditch for Nutrient Reduction in an Agricultural Watershed

Description: A powerpoint presentation discussing the design and implementation of a two-stage drainage ditch for nutrient and sediment reduction.

Authors: Joe Honings (Iowa Geological Survey)*; Keith Schilling (Iowa Geological Survey)

Author Bio: Dr. Joe Honings is a hydrogeologist and geophysicist with the Iowa Geological Survey.