Curtis Creek Floodplain Mapping Project

What areas are included in this project?

The Curtis Creek subwatershed has both rural and urban areas. The rural portion of the subwatershed is located in the Township of Douro. The urban portion is located within the City of Peterborough, south of Parkhill Road East, between the Trent Canal and the Otonabee River.

The total drainage area of the Curtis Creek subwatershed is nine km2. The area included in this floodplain mapping project is six km2.

Why are we doing this project?

Flooding is one of the biggest natural hazards within the Curtis Creek subwatershed. This area has a history of flooding after high rainfall events. On July 14 and July 15, 2004, Peterborough experienced a significant storm event. Over these two days, 250 millimetres of rain fell; resulting in flooding that caused a lot of damage to private and public property.

Some floodplain mapping exists for Curtis Creek, but it is outdated and incomplete. Existing mapping will be updated and new mapping created for areas currently un-mapped. The purpose of this project is to create maps that accurately identify areas along the creek that will flood during a Regulatory Storm.

How will the maps be used?

The Curtis Creek floodplain maps will allow residents and municipalities to better prepare for, and take action during flooding events. The new floodplain maps will serve three main purposes:

  • provide people currently living along Curtis Creek with information about potential flooding on their property;
  • help municipalities and Otonabee Conservation to direct future development outside of the floodplain, to avoid loss of life and property damage, as well as personal injury and stress; and,
  • help identify areas where flooding may impact access to roads and emergency routes, so emergency responders can use alternate routes during flood events.

How were the maps created?

To make the floodplain maps, our engineering, remote sensing and Geographic Information Systems (GIS) specialists created models of how much water flows through the Curtis Creek subwatershed and how it behaves during a flooding event. This allows us to create maps showing the floodplain.

Throughout the process, Otonabee Conservation has been in contact with our partnering municipalities, fellow agencies and other key stakeholders and partners.

If you have general questions (i.e., not property specific) about how the maps were created and what the information means to you, please submit these questions to and we will respond to you directly as well as post the answers on this webpage.

 When will the maps be available?

The maps will be completed during the summer of 2019. If you would like to be notified of the release of the maps please send an email to