Overland Park KS Rain Garden Manual

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Overland Park KS Rain Garden Manual …

Overland Park KS Rain Garden Manual

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  • 1. How to Build a Rain Garden for Residential Yards Presented by: David Dods URS Overland Park, Kansas
  • 2. How to Build a Rain Garden for Residential Yards 1. Locating the garden 2. Testing site soils & sizing the garden 3. Preparing the garden bed 4. Planting zones 5. Inlets & outlets 6. Finishing touchesPhoto: David Dods
  • 3. Planting Beds - Two Approaches Using Native Soils (Preferred) With Engineered Soils and an UnderdrainIllustrations: Dan Shaw; Barr Engineering
  • 4. Rain Garden Construction Using Native SoilsPhotos: David Dods; Rusty Schmidt
  • 5. Locating the Garden • Downspouts • Driveways • Sump pump outlets • Drainageways • ~10 – 20 ft away from buildingsPhoto: David Dods, URS
  • 6. Places to Avoid Utilities, Septic Systems Uphill of Buildings on Slopes Behind Structural Retaining Walls if Not Designed for Water/DrainagePhoto: David Dods
  • 7. Testing Site Soils • Inspect site soils. Dig a hole. Look for soil type, fill material, compaction • Conduct a Percolation TestPhoto: David Dods, URS
  • 8. Percolation Test How much water soaks in over 24 hours? Illustration: Marjorie Vigoren, City of Plymouth, MNSource: The Blue Thumb Guide to Raingardens,by Schmidt, Shaw, & Dods
  • 9. Sizing the Garden • For residential yards, the bed depth is more important than the area • Average size: ~About 6’ x 8’ near one downspout • Fit it to your landscapingPhotograph: Rusty Schmidt
  • 10. Preparing the Garden Bed • Rototill or double-dig • Over-dig clay soils • Amend with compostPhotos: Carla Dods; Rusty Schmidt
  • 11. Shape & Depth of the Garden Pool DepthIllustration: Dan Shaw, Waterdrop Innovations LLC
  • 12. Minnetonka near Shady Oak LakePhoto courtesy of Washington Conservation District
  • 13. Bed is dug down Downhill edge is raised upPhotos: Shawn Tracy; David Dods
  • 14. Rain Garden Planting Zones Edges: Dry Sides: Average Bottom: MoistIllustration: Dan Shaw, Waterdrop InnovationsSource: The Blue Thumb Guide to Raingardens, by Schmidt, Shaw, & Dods
  • 15. Rain Gardens are not Wetlands or Water Gardens• Designed to Infiltrate Water in 1 – 1 ½ Day • Large plant selection • No mosquitoes • Tolerates spring rains & summer drought
  • 16. Improving Infiltration: Its in the Roots Turf Grass Native Grass Root Depths Turf Grass: Inches Native Grasses & Wildflowers: FeetPhotos: David Dods, URS
  • 17. Re-test Infiltration Before Planting the GardenPhotograph: Rusty Schmidt
  • 18. Planting: Include Cute Kids for PhotosPhoto: Lynn Hinkle, Astra Communications
  • 19. Mulch Use Coarse, Double- Shredded Hardwood Pinebark Nuggets & Cedar Chips FloatPhotos: David Dods
  • 20. Getting Water to the Garden Downspout Extensions
  • 21. Scupper Rain Chain Photos: Kurt Leuthold, Barr Engineering; Rusty Schmidt
  • 22. Pipe Creek Bed Photos: Rusty Schmidt
  • 23. Outlets Make sure the water overflowswhere you want itto go during large storms Photos: David Dods
  • 24. Outlet at End of Berm Minnetonka near Shady Oak Lake
  • 25. Outlet at End of Berm Minnetonka near Shady Oak Lake
  • 26. Finishing Touches Make the Garden Look Deliberate Roy the Cat Inlet Splash Blocks Edging Accents OutletPhoto: David Dods
  • 27. Borders and Edging: Make the Garden Look DeliberatePhotos: David Dods, URS; Barr Engineering
  • 28. Care & Maintenance First Growing Season• Limit standing water while plants are small• Water during dry periods• Pull weeds Photograph: Rusty Schmidt, URS
  • 29. Example Garden Existing Garden BedPhotos: Shawn Tracy
  • 30. Overflow (overland) depression bermPhotos: Shawn Tracy
  • 31. Depression(w/ compost) Berm (w/ erosion- control blanket) Photos: Shawn Tracy
  • 32. Depression BermPhotos: Shawn Tracy
  • 33. Photos: Shawn Tracy
  • 34. Questions ? David Dods URS 8300 College Boulevard, Suite 200 Overland Park, Kansas 66210 913-344-1022 david_dods@urscorp.comPhoto: Washington Conservation District, Stillwater, MN