JNieber_Ditch - Geomorphic Characteristics of Drainage...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Geomorphic Characteristics of Drainage Ditches in Southern Minnesota, and the concept of a Two- Stage Ditch Design Brad Hansen, Bruce Wilson, Joe Magner, and John Nieber Brad Hansen, Bruce Wilson, Joe Magner, and John Nieber University of Minnesota Sleepy Eye, MN Outline Outline Background Site Selection Field Methods Results Current Designs Current Designs 27K miles in Mn Maintenance Biotic potential Blue Earth County $650K in 2005 $1.2M in 2006 Ohio $450/mi/yr Problem: Problem: Seepage Seepage- induced instabilities induced instabilities Faribault County Faribault County Problem: Problem: Management of Surface Runoff Faribault County Problem: Problem: Design of surface inlets Design of surface inlets Bare bank erosion
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon