Regional Flooding Evaluation, Lye Brook, Manchester, VT
Northstar Hydro, Inc. assisted the Town of Manchester Vermont in evaluating local flooding issues associated with the area between Lye Brook and the Batten Kill. 2-Dimensional flow model of the river-wetland complex transected by several transportation corridors was developed to study flow and land use patterns. The model assisted in understanding the complex relationship between an altered stream and localized flooding. The study found that the area was an active alluvial fan 100+ years ago before the primary stream was channelized. The analysis highlighted the challenges of historic development patterns along an active stream as well as the impacts of…