Posted by Bob Lefebvre
Most Calgary birders are aware by now that the ring road construction adjacent to the Weaselhead Nature Area in SW Calgary is well under way. A huge area has been cleared in preparation for building a bridge over the Elbow River.
This project has been discussed for decades, and birders have been very concerned about building a bridge and highway through such an environmentally sensitive area. I think it has long been assumed that when the time came, if it did, the builders would be sure to follow best environmental practices to minimize the impact on this area. In particular, it was hoped that a clear span bridge like the Stoney Trail bridge over the Bow River would be built. Instead, the plan is to build an earthern berm or cut-and-fill bridge, which will fill in the valley up to the road level for most of the span, essentially forming a dam across the floodplain. This design will have many negative consequences for the birds and other wildlife in the valley, and create a great many problems during flood events.
Aerial photograph taken June 3, 2017, Courtesy of the Weaselhead/Glenmore Park Preservation Society and John Mader. The Weaselhead Nature Area is on the right, and the ring road construction showing the diversion of the Elbow River on the left. As you can see, there has already been a stunning amount of disturbance, cutting off the Weaselhead from the ecologically diverse Elbow Valley to the west. Photo from the website http://www.yyccares.ca/recent_pictures.
A concerned group of local citizens is petitioning the Alberta Government to build a better bridge over the Elbow. Please visit their web page YYC Cares. There is a great deal of information on their site, and you can sign the petition there.