Slide 1Slide 2Slide 3Slide 4Slide 5Slide 6Slide 7Slide 8Slide 9Slide 10Slide 11Slide 12Slide 13Slide 14Slide 15Slide 16Slide 17Slide 18Slide 19Slide 20Slide 21Slide 22Slide 23Slide 24Stormwater Quality EnhancementForThe City of Greencastle, IndianaProject LocationGreencastle, IndianaCity of Greencastle, IndianaStormwater Quality Enhancement for the City of Greencastle, IndianaRokicki ParkExisting SiteStormwater Quality Enhancement for the City of Greencastle, IndianaNBig Walnut Sports ParkExisting SiteStormwater Quality Enhancement for the City of Greencastle, IndianaNDesign Requirements Objectives Improve urban stormwater quality Educate and involve the public Constraints Safety AccessibilityStormwater Quality Enhancement for the City of Greencastle, IndianaSite Assessment Survey Zoning Floodplain Existing Wetlands Soil Investigation PermitsStormwater Quality Enhancement for the City of Greencastle, IndianaProject ApproachNNAssessment of Design OptionsDecision Matrix for Rokicki ParkStormwater Quality Enhancement for the City of Greencastle, IndianaConstruction Cost(20%)Maintenance Cost(30%)EducationalValue (30%)Effectiveness(20%)TotalWetland 2 4 4 5 3.8Rain Garden 3 1 5 4 3.2Retention/ Detention2 4 2 3 2.8No Action 5 5 0 0 2.5BMP Design Delineate Drainage Area Determine TOC 100 yr Peak Runof Determine Stormwater Quality VolumeStormwater Quality Enhancement for the City of Greencastle, IndianaHydrologic StudyWetland Design Determine Surface Area Determine Storage Tie into Existing Topography Size Micropool/Forebay Size Outlet StructureStormwater Quality Enhancement for the City of Greencastle, IndianaRokicki Park – Wetland NRokicki Park – Wetland NOutlet Structure Rokicki ParkRain Garden Design Existing Topography Water Quality Infiltration Trench Design Layout BermStormwater Quality Enhancement for the City of Greencastle, IndianaWater Quality Infiltration TrenchStormwater Quality Enhancement for the City of Greencastle, IndianaEducational MaterialsStormwater Quality Enhancement for the City of Greencastle, Indiana Trail Guide Holder Informational brochures providing self-guided tour Interpretive signage Birdhouses Trash receptaclesRokicki ParkTrail LayoutStormwater Quality Enhancement for the City of Greencastle, Indiana App. 1750 feet 7 feet wide Elevated 2 feet Generally sloping 3 overlooksNAssessment of MaterialsStormwater Quality Enhancement for the City of Greencastle, IndianaPrice-effectiveness Lifespan Strength TotalPressure-Treated Lumber3 2 3 3Naturally Rot-Resistant Wood2 1 3 2Recycled Plastic1 3 1 1Material Recommended:Pressure-Treated LumberRokicki Park Plant SelectionStormwater Quality Enhancement for the City of Greencastle, IndianaNMaintenance of BMPs Soil Maintenance Plant Maintenance Stormwater Quality Enhancement for the City of Greencastle, Indiana Boardwalk MaintenanceCost EstimateStormwater Quality Enhancement for the City of Greencastle, IndianaTask Total CostConstruction $17,600Plants $1,400Educational Materials $5,300Boardwalk $25,700Total$50,000Task Total CostConstruction $69,000Plants $4,600Educational Materials $3,200Boardwalk $56,200Total$133,000Big Walnut – Rain GardenRokicki - WetlandThank YouQuestions?Stormwater Quality Enhancement for the City of Greencastle, IndianaBig Walnut Sports ParkTrail LayoutStormwater Quality Enhancement for the City of Greencastle, Indiana App. 1250 feet 6 feet wide Viewing Area Non-elevated Trail Elevated BridgeNBig Walnut Sports Park Plant SelectionStormwater Quality Enhancement for the City of Greencastle, IndianaNProject TeamCarrie WileyProject ManagerLance GassertProject EngineerAaron RobertsProject EngineerAndrea MaillouxProject EngineerStormwater Quality Enhancement for the City of Greencastle,