Reading PlansThe 110th Cascade Project included the replacement of the existing ditch and culvert system along four blocks in Seattle.The project included stair-stepped natural pools that slow damaging stormwater flows, reduce flooding, and trap pollutants before they reach Pipers Creek. For more information on the project, go to: http://www.seattle.gov/util/EnvironmentConservation/Projects/GreenStormwaterInfrastructure/CompletedGSIProjects/110thCascadeProject/index.htm (Links to an external site.)Links to an external site.