Stormwater Quality Enhancement For The City of Greencastle Indiana Project Location Greencastle Indiana City of Greencastle Indiana Stormwater Quality Enhancement for the City of Greencastle Indiana Rokicki Park N Existing Site Stormwater Quality Enhancement for the City of Greencastle Indiana Big Walnut Sports Park N Existing Site Stormwater Quality Enhancement for the City of Greencastle Indiana Design Requirements Objectives Improve urban stormwater quality Educate and involve the public Constraints Safety Accessibility Stormwater Quality Enhancement for the City of Greencastle Indiana Site Project Assessment Approach Survey Zoning Floodplain Existing Wetlands NSoil Investigation Permits N Stormwater Quality Enhancement for the City of Greencastle Indiana Assessment of Design Options Decision Matrix for Rokicki Park Construction Cost 20 Maintenance Cost 30 Educational Value 30 Effectiveness 20 Total Wetland 2 4 4 5 3 8 Rain Garden 3 1 5 4 3 2 Retention Detention 2 4 2 3 2 8 No Action 5 5 0 0 2 5 Stormwater Quality Enhancement for the City of Greencastle Indiana BMP Design Hydrologic Study Delineate Drainage Area Determine TOC 100 yr Peak Runof Determine Stormwater Quality Volume Stormwater Quality Enhancement for the City of Greencastle Indiana Wetland Design Determine Surface Area Determine Storage Tie into Existing Topography Size Micropool Forebay Size Outlet Structure Stormwater Quality Enhancement for the City of Greencastle Indiana Rokicki Park Wetland N Rokicki Park Wetland N Outlet Structure Rokicki Park Rain Garden Design Existing Topography Water Quality Infiltration Trench Design Layout Berm Stormwater Quality Enhancement for the City of Greencastle Indiana Water Quality Infiltration Trench Stormwater Quality Enhancement for the City of Greencastle Indiana Educational Materials Trail Guide Holder Informational brochures providing self guided tour Interpretive signage Birdhouses Trash receptacles Stormwater Quality Enhancement for the City of Greencastle Indiana Rokicki Park Trail Layout App 1750 feet 7 feet wide Elevated 2 feet Generally sloping 3 overlooks N Stormwater Quality Enhancement for the City of Greencastle Indiana Assessment of Materials Price effectiveness Lifespan Strength Total PressureTreated Lumber 3 2 3 3 Naturally RotResistant Wood 2 1 3 2 Recycled Plastic 1 3 1 1 Material Recommended Pressure Treated Lumber Stormwater Quality Enhancement for the City of Greencastle Indiana Rokicki Park Plant Selection N Stormwater Quality Enhancement for the City of Greencastle Indiana Maintenance of BMPs Soil Maintenance Plant Maintenance Boardwalk Maintenance Stormwater Quality Enhancement for the City of Greencastle Indiana Cost Estimate Big Walnut Rain Garden Task Construction Plants Educational Materials Boardwalk Total Cost 17 600 1 400 5 300 25 700 Total 50 000 Rokicki Wetland Task Construction Plants Educational Materials Boardwalk Total Cost 69 000 4 600 3 200 56 200 Total 133 000 Stormwater Quality Enhancement for the City of Greencastle Indiana Thank You Questions Stormwater Quality Enhancement for the City of Greencastle Indiana Big Walnut Sports Park Trail Layout N App 1250 feet 6 feet wide Viewing Area Non elevated Trail Elevated Bridge Stormwater Quality Enhancement for the City of Greencastle Indiana Big Walnut Sports Park Plant Selection N Stormwater Quality Enhancement for the City of Greencastle Indiana Project Team Carrie Wiley Project Manager Lance Gassert Aaron Roberts Project Engineer Project Engineer Andrea Mailloux Project Engineer Stormwater Quality Enhancement for the City of Greencastle Indiana