P4G green network study area: Drainage Pilot Project

At its November 16, 2017 meeting, the P4G Regional Oversight Committee (ROC) discussed the potential to align a number of drainage studies that are needed in portions of the P4G Regional Plan area with refinement of the Green Network Study Area (GNSA). At the April 20, 2018 meeting the ROC endorsed a pilot project subject to municipal budget support.

The pilot project is proposed to delineate the flood boundary level associated with a 1:100 storm. It would also provide a general assessment of the hydraulic conditions of the major flow pathways and their associated hydraulic structures (i.e. culverts). As a result, development could be directed away from areas that would be flooded in a major storm, and areas that require further infrastructure work would be identified.

An area in the northern part of the R.M. inside and outside the P4G study area was selected for the pilot project; a map of the study area can be found HERE. The modelling would use existing LiDAR, Opimihaw Creek Watershed Association and other municipal data where appropriate.

Refinement of the remainder of the GNSA within P4G, including ecologically sensitive areas and the viewshed of the Wanuskewin Heritage Park, which could also affect where development is located and how it is designed, would remain a separate project. However this pilot project would be an opportunity to produce the first layer of much needed drainage analysis that could be used as a template for further GNSA analysis and guide development decisions in the P4G Region going forward.

All of the municipal partners have confirmed their budget allocations and the project began in June and is expected to take six (6) months to complete. Engineers from Saskatoon Water will be the lead on the analysis, modelling and mapping. Updates and mapping results will be provided to R.M. and made public once available.

​Please contact the R.M. Planning Department with any questions or for more information on the pilot project