Introduction

Sound Impacts is an online portal for all of the region’s practitioners and implementers of Green Infrastructure as well as for anyone curious to see what efforts and investments are being made to protect and improve this region’s natural assets.

  rain garden

A rain garden is a bowl-shaped garden designed to capture and filter stormwater runoff from roofs, driveways and other hard surfaces, keeping it from becoming harmful water pollution. Rain gardens are relatively simple to install and feature well-draining soil and easy-to-maintain plants that allow for stormwater infiltration. For simplicity we define “Rain gardens” as an inclusive catch-all for simple as well as engineered, small as well as large versions of this concept, including: Bioretention facilities, stormwater planters, Bioswales etc.

 Add Project

2,970

rain garden Projects

Total Square Feet1,300,683
Earliest Project Date
Latest Project Date

30,765,848

Gallons of Runoff Managed

Annual estimate based on the simple calculation:
square footage x annual rainfall x gallons conversion

For more detailed impact calculations, please visit the dashboard page.



The calculations for Gallons of Runoff Managed were derived by long term monitoring and modeling by Herrera Environmental and provided by Seattle 2030 District

Sound Impacts is in beta state. If you would like to report a bug or data issue, suggest a feature, or get in touch please contact us.