Seaton Community Northern Outflow Project Flooding

October 8th, 2019
Users of the Seaton Trail just south east of Forestream Road and at the Hydro line would have noticed flooding of the trail.  The flooding is the result of the new Mattamy Homes Seaton Development  Water Management design.  This design was approved by the City of Pickering and the TRCA.     The Friends of the Seaton Trail were never invited to the review of the design process.   The new development collects rain water from a large area on the plateau and channels it into a retaining pond.  This retaining pond then releases the water into a pipe that leads down the hill to a tributary creek of the Duffins Creek.  This release point is 225 meters away from Duffins Creek.   The origin tributary creek never handled the quantity or rate of water it has to handle now.    The original creeks water was moderately low volume.   So all the water would hit the valleys sandy soil and soak in and travel the remainder of its 225 meters under ground to get to the Duffins Creek.   With the increase in quantity and rate of flow the small tributary creek  can not handle the increase in  water which results in the water fanning or the valley floor out over the 225 meters  and flooding the Seaton Trail and surrounding woods.   The Friends of the Seaton has been in discussions with the City of Pickering and  TRCA since June 12, 2019 and they are all stating the project was approved and neither are to blame for the poor water management design.   The Friends  has pointed out to the City of Pickering and the TRCA that the Seaton Development Southern Outflow project is a proper design.   Water is collected from the plateau , channeled directly to the West Duffins Creek in a controlled manner.   The Friends has pointed out to City of Pickering, the manor of the City of Pickering and the TRCA that the problem will only get worst when winter comes.   The ground will freeze and more water will stay on the surface.   At below freezing temperature this flooding will form ice and greatly increase the potential of users of the trail in this area to slip and fall.   Discussions are ongoing with both organizations to first get them to admit there is a problem due to this is a poor  water management design and then start working on solutions.   If you would like to help contact us.  


Latest News

Seaton Community Northern Outflow Project Flooding
October 8, 2019
Users of the Seaton Trail just south east of Forestream Road and at the Hydro line would have noticed flooding of the trail.  The flooding is the result of the new Mattamy Homes…
Seaton Community Southern Outflow Project
October 8, 2019
Users of the Seaton trail just north of the CPR trestle would have noticed  the new Seaton Community Southern Outflow Project.   This project collects rain water from the new…
Found Glasses on Trail at Marker 1N085
November 21, 2018
A pair of kids glasses were found on the trail around marker 1N085. The glasses were left at the marker.
Widening of Hwy 407, ETR – May 15th, 2017 – Sept 15, 2018
September 20, 2018
The construction activity has finally been completed on the 407 highway overpass bridge.   The Seaton Trail is now full open from Rossland Road (Concession Road # 3, Grand View…

Latest Events

Seaton Trail Race
May 10, 2014
The Seaton Trail Race consists of 3 races: 15K/25K and 50K. The 15K will start 8:30am at Pine Ridge and the turnaround will be at Forestream. The 25K will start 8:00am at Pine Ridge…
BTC Seaton Trail Hike – May 15th
May 15, 2011
Introduction to the Seaton Trail to Bruce Trail Conservancy Memebers. The trail follows West Duffins Creek that winds through a riparian habitat, all within Pickering,…
Toronto Outdoor Club Winter Night Hike – Wed, Jan 26 2011
January 26, 2011
We’re going to walk the first section of the Seaton Hiking Trail starting from south end parking lot (Coordinates: N43.86403 W79.09846). Depending on the condition, we…
Install Un-Authorized Use Signs On Sunday Oct 17, 2010
October 17, 2010
Here’s your chance to give back to the Seaton Trail. We are planning some trail work on Sunday Oct 17, 2010 and we are looking for volunteers. We will be meeting at Rossland…