June/July 2011
Volume 52, No. 4
Cover: Milliken Reservoir expansion. See story
page 26. Photograph by William Conway,
Progress Photography
FEATURES A popular community park in downtown Ottawa has been reconfigured with stacked storage.
Stormwater
Flood Control in Sandy Hill.
By Adrien Comeau, P.Eng., Stantec 14
International
Improving Lives.
Canadian engineers are modeling a sewage collection system and treatment plant in the busy African city of Addis Ababa.
By Michele Rochon, Morrison Hershfield 20
Wastewater
St. John’s Harbour Clean-Up.
Raw sewage is no longer being released into the harbour of one of Canada’s most historic and picturesque towns.
CH2M HILL & NDAL 22
Water Supply
Milliken Reservoir and Pump Station.
An underground reservoir in Richmond Hill, Ontario is being expanded on a grand scale.
By Chris Caers, P.Eng. and Bill De Angelis, P.Eng., Associated Engineering 26
Transportation
Glenmore Trail Interchange.
Traffic in Calgary flows freely after a temporary flyover was constructed in just five months.
ISL Engineering and Land Services/CH2M HILL 28
Opinion
Talking to Young Professionals.
A senior consulting engineer finds out that sharing wisdom with young people is a two-way street.
By Andrew Steeves, P.Eng. 34
DEPARTMENTS
Comment 4
Up Front 6
Business 33
Engineers & the Law 37
Computers 39
Computer Products 40
Advertiser Index 45
Human Edge 46
