Stormwater Quality Enhancement For The City of Greencastle, Indiana

Objectives Improve urban stormwater quality Educate and involve the public Design of BMPs Provide educational materials Stormwater Quality Enhancement for the City of Greencastle, Indiana

Project Description LOCATION Greencastle, Indiana Stormwater Quality Enhancement for the City of Greencastle, Indiana LOCATION

Rokicki Park Existing Site Stormwater Quality Enhancement for the City of Greencastle, Indiana

Big Walnut Sports Park Existing Site Stormwater Quality Enhancement for the City of Greencastle, Indiana

ASSESSMENT OF DESIGN OPTIONS Project Approach SITE ASSESSMENT PERMITTING DESIGN OPTIONS ASSESSMENT OF DESIGN OPTIONS DESIGN OF BMP COST ANALYSIS Stormwater Quality Enhancement for the City of Greencastle, Indiana

Progress to Date Site Assessment Permits and Codes Hydrology Soil Investigation Plant Selection Design Options Assessment of Design Options Stormwater Quality Enhancement for the City of Greencastle, Indiana

Progress to Date Site Assessment Survey Zoning Floodplain Existing Wetlands Stormwater Quality Enhancement for the City of Greencastle, Indiana

Floodplain Map Big Walnut Sports Park Stormwater Quality Enhancement for the City of Greencastle, Indiana

Floodplain Map Rokicki Park Stormwater Quality Enhancement for the City of Greencastle, Indiana

Wetlands Map Big Walnut Sports Park Stormwater Quality Enhancement for the City of Greencastle, Indiana

Wetlands Map Rokicki Park

Progress to Date Soil Investigation Sampling and testing Match SCS data Stormwater Quality Enhancement for the City of Greencastle, Indiana

Zinc Testing at Rokicki Park Soil Investigation Zinc Testing at Rokicki Park Stormwater Quality Enhancement for the City of Greencastle, Indiana

Permits Construction in a Floodway – IDNR Section 404 Clean Water Act Compliance – USACE Local building permits – City of Greencastle Stormwater Quality Enhancement for the City of Greencastle, Indiana

Progress to Date Plant Selection No invasive species Use of endangered, native species Maintenance plan JFNew as a subcontractor Stormwater Quality Enhancement for the City of Greencastle, Indiana

Progress to Date Hydrology Delineation of Drainage Area

Progress to Date Hydrology Delineation of Drainage Area Rokicki Park 138 acres Big Walnut Sports Park 31 acres Average Monthly Precipitation from National Climatic Data Center Volume of water entering on a monthly basis Month Ave. Rainfall (inches) January 2.42 February 1.91 March 2.45 April 2.95 May 6.49 June 3.51 July 4.81 August 2.63 September 3.76 October 3.86 November 2.38 December 2.67

Progress to Date Design Options Wetland Rain Garden Retention/Detention Pond Stormwater Quality Enhancement for the City of Greencastle, Indiana

Decision Matrix for Rokicki Park Progress to Date Assessment of Design Options Rokicki Park – Wetland Decision Matrix for Rokicki Park Construction Cost (20%) Maintenance Cost (30%) Educational Value (30%) Effectiveness Total Wetland 2 4 5 3.8 Rain Garden 3 1 3.2 Retention/ Detention 2.8 No Action 2.5 Stormwater Quality Enhancement for the City of Greencastle, Indiana

Decision Matrix for Big Walnut Sports Park Progress to Date Assessment of Design Options Big Walnut Sports Park – Rain Garden Decision Matrix for Big Walnut Sports Park Construction Cost (20%) Maintenance Cost (30%) Educational Value (30%) Effectiveness Total Wetland 1 4 5 2.7 Rain Garden 2 3.7 Retention/ Detention 3 2.8 No Action 2.5 Stormwater Quality Enhancement for the City of Greencastle, Indiana

Assessment of Design Options Summary of Progress Site Assessment Permits and Codes Hydrology Soil Investigation Plant Selection Design Options Assessment of Design Options Stormwater Quality Enhancement for the City of Greencastle, Indiana

Future Plans Complete Permits Design of BMP at Each Site Site layout Outlet structure Cut and fill Final plant selection Boardwalk Educational materials Maintenance Plan Cost Analysis Stormwater Quality Enhancement for the City of Greencastle, Indiana

Schedule of Work Stormwater Quality Enhancement for the City of Greencastle, Indiana

Thank You Questions? Stormwater Quality Enhancement for the City of Greencastle, Indiana