Fluvial Geomorphology Subprogram

The purpose of a Fluvial Geomorphologic Survey report is to provide documentation of the existing conditions within a watershed. Rosgen methodologies are used to measure channel geometry and stability parameters to determine stream classification. A comprehensive habitat survey was also completed for the watershed. In addition, a full infrastructure assessment is conducted to survey and record the spatial location of all bridges, channelized portions, confluences, culverted portions, dams, manholes, outfalls, and pipes that impact the waterway. Together, the measured geomorphologic channel survey, habitat survey, and infrastructure investigation will provide the following:

• a baseline for evaluating effects of urbanization,
• a land use and/or planning tool,
• a rating method specific to the Tookany/Tacony-Frankford Creek Watershed,
• potential stream and habitat restoration sites, and
• appropriate potential restoration strategies.

The study will aid in the determination of the flow patterns in the watershed, which will allow for the conceptual planning of projects that will mitigate the effects of storm flow on the stream by decreasing the erosive effects of the stormwater, decreasing the quantity of water that reaches the streams, and stabilizing and restoring the banks using natural techniques to withstand storm flows.