The CSC has undertaken a $1.2 million, 30-month study to assess, model, and map flooding problems in the Wissahickon Creek Watershed in Montgomery and Philadelphia counties. The study will include the creation of a Digital Elevation Model for the watershed; an evaluation and field verification of flood elevations and stream obstructions; hydrologic/hydraulic modeling; the preparation of new 100- and 500-year floodplain maps and floodways; and the development of an enhanced stormwater management plan for the watershed.
Our goal is to prepare new and accurate flood hazard maps to meet and exceed FEMA (Federal Emergency Management Agency) specifications.
The Wissahickon Creek Watershed encompasses including 15 municipalities in Montgomery County and the City of Philadelphia. Municipalities include: Abington Township, Ambler Borough, Cheltenham Township, Horsham Township, Lansdale Borough, Lower Gwynedd Township, Montgomery Township, North Wales Borough, Springfield Township, Upper Dublin Township, Upper Gwynedd Township, Upper Moreland Township, Whitemarsh Township, Whitpain Township, Worcester Township, and the City of Philadelphia.
As part of the comprehensive study, researchers will create new flood hazard maps, computer simulations depicting water flow and flooding in different flood events, and identify specific stormwater improvements — running models that examine the potential reduction of flooding and pollution and the potential costs.
Center researchers will prepare an “Act 167” Stormwater Management Plan for the watershed, evaluating the condition and performance of existing stormwater facilities and outlining strategies to improve their performance, including retrofit and alternative stormwater Best Management Practices (BMPs).
April 7, 2011
Center for Sustainable Communities develops comprehensive study of Wissahickon Creek Watershed