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Ryerson Urban Water

Planning and Design of a Right-of-Way LID (Etobicoke Exfiltration System)

Road right-of-way can provide a good opportunity to implement stormwater low impact development technologies (LID). In Canada, stormwater management should focus not only in summer and fall but also winter and spring. A stormwater exfiltration system (termed Etobicoke Exfiltration System) was designed to manage stormwater over four seasons by installing two 200 mm perforated pipes with end capped below a storm sewer system.  The design concept is to direct road runoff (up to 13 mm of rainfall) to these two perforated pipes with end capped and fill the void space of the sewer trench for exfiltration to the surround soil at all times (i.e. including snowmelt and winter rainfall). Two and a half kilometre of this exfiltration system was constructed in the former City of Etobicoke in 1993 and the monitoring results in 1994 indicated that long duration rainfall up to 63 mm was completely captured without overflowing to the storm sewer above. This one-day seminar presents the planning criteria and design procedure, construction and maintenance, cost, and performance evaluation as well as the MOECC, CA, municipal and consulting perspectives.



Date:     July 24, 2015 (Friday)  
Venue:   Room RCC204, Rogers Communication Centre, 80 Gould Street, 
               Toronto, ON


9:00-9:15        Introduction (James Li, Imogen Coe, Mike Walters, Dale Henry)

9:15-9:45        Stormwater Management Planning and Design Objectives and Criteria (Sabrina Ternier, MOECC)

9:45-10:30       Etobicoke Exfiltration System Planning and Design   Manual (James Li)

10:30-10:45     Coffee Break

10:45-12:30     Design of EES systems using MIDUSS and SWMM (Darko Joskimovic and Celia Fan)

12:30-14:00     Lunch and networking

14:00-14:45     MOECC perspectives (John Antozeh, Rob Skeates, Sabrina Ternier, MOECC)

14:45-15:15     CA perspectives and monitoring results of EES (Tim Van Seters, TRCA)

15:15-15:30       Coffee Break

15:30-16:00      Municipal perspectives (Patrick Cheung, Toronto Water)   

16:00-16:30      Consulting perspectives (Michael Thompson, Dillon Consulting)

16:30-16:45      Conclusions