at c. 7 am on 21 june 2013 the bow river at the calgary station, upstream of the elbow, peaked at c.. in 2005 the peak flow was and in 1932 the peak flow was . only the floods of 1879 and 1897 in then fort calgary has higher peak rates, estimated at based on high-water marks. this is a 100 year flood map for calgary, alberta similar to the one produced in 1973 by montreal engineering co. ltd.