Greck was retained by the Toronto and Region Conservation Authority (TRCA) to update 58 map sheets for the entire Etobicoke Creek Watershed.  This assignment included the development of a new HEC RAS hydraulic model using new digital topographic mapping covering the municipalities of Toronto, Mississauga and Brampton.

An assessment of all water crossings was undertaken including field reconnaissance and the establishment of a road crossing database along with as-built drawings. Deliverables included all modelling files as well as digital floodplain mapping data and a robust summary report.