Town of Saugeen Shores Floodplain Mapping Project

PROJECT:  Town of Saugeen Shores Floodplain Mapping Project

CLIENT:  Saugeen Valley Conservation Authority (SVCA)

NUMBER OF YEARS DEALING WITH CLIENT: +/- 3 years

DESCRIPTION OF PROJECT: 

  • Water’s Edge was authorized by Saugeen Valley Conservation Authority (SVCA) to provide technical and engineering services to a new floodplain mapping of several lakeshore creeks.
  • Water’s Edge staff collected LiDAR data and processed the data for hydraulic modeling and mapping uses.
  • Water’s Edge staff collected bridge/culvert information.
  • A hydrologic model was built for the creeks using HEC HMS.
  • Historical 1D modelling indicated significant spill areas in the mapping. Due to the small creek sizes and flat terrain, it was 1D modelling was deemed in appropriate for Floodplain Mapping.
  • A 2D unsteady state HEC-RAS model was produced to determine the water surface elevations for the various design storms.
  • Floodplain maps were then produced using the HEC-RAS results according to Provincial and Federal standards.

SERVICES PROVIDED:  HEC-HMS and 2D HEC-RAS Modeling for Floodplain Mapping

DATE OF PROJECT:  Spring 2023-2024