final bannockburn onsite stormwater management municipal approaches 8 28 09

Presented by:David Gewalt, P.E.

Marcy Knysz, AICP, LEED AP

Village of Bannockburn

Village of Bannockburn

Preservation of Wetlands Installation of Rain Gardens Installation of Bioswales Removal of Buckthorn and Invasive Species Installation of Native Plantings Encouraging Pervious Surfaces (Porous Pavers,

Porous Concrete Sidewalks & Turfstone Grass Parking Spaces)

Naturalization and Landscaping of Detention Ponds

Village of Bannockburn

Rain Gardens Bioswales Permeable Pavers Bioretention Facilities

Village of Bannockburn

Small-scale stormwater management practices Promote infiltration of runoff Reduce runoff volume, especially low intensity

storms Improve water quality by removing from 60%

(ammonia) to 95% (metals) pollutants

Stormwater Bioretention Facilities

Village of Bannockburn

Village of Bannockburn

Village of Bannockburn

1. Best Management Practices Village Hall Property• Rain Gardens• Wetland Creation• Bioswales

2. Stirling Valley Road Triangle (Proposed)• Rain Gardens• Bioswales

3. Village ROW – Various Locations (Proposed)• 10 Rain Gardens• 3 Bioswales

Village of Bannockburn

Project 1Village Hall Best

Management Practices Project

Received 319 Grant Funding

Village of Bannockburn

Village Hall Best Management Practices Project

Village of Bannockburn

Rain Garden Cross-Section

Village of Bannockburn

40% Construction Sand 20-30% Compost 20-30% Topsoil (no clay)

*Require soil to be tested for pH, organic matter, %sand, %clay, %compost

Village of Bannockburn

Image provided by Lake County Stormwater Management Commission

Village of Bannockburn

Village of Bannockburn

Village of Bannockburn

Village of Bannockburn

Village of Bannockburn

Village of Bannockburn

Village of Bannockburn

Village of Bannockburn

Village Property ProjectWetland Creation

Village of Bannockburn

Village Property ProjectBioswale

Before Under Construction After

Village of Bannockburn

Rock Check Dam and Outfall

Village of Bannockburn

Received 319 Grant Funding

Village of Bannockburn

Rain Gardens

Bioswales

Village of Bannockburn

319 Grant Application Submitted

Village of Bannockburn

Village of Bannockburn

Spring Creek Road, Barrington Hills

Village of Bannockburn

Earth excavation = $12.00 – $70.00 per CY

Engineered soil = $62.00 – $83.00 per CY

Plugs = $2.75 - $7.80 per plant

Aggregate base = $72.00 – $104.00 per CY

Annual maintenance = $200.00 - $300.00 per month (10 months per year)

Thank You