As the water is drained out of the Rideau canal the remains of the Dow’s Lake Causeway becomes visible.
I’m not sure when the causeway was removed but the picture below is from the Report and Correspondence of the
Ottawa Improvement Commission (Ottawa, 1912).
A quick picture taken today.
Cropped map of Ottawa from 2nd Edition, 1915, Atlas of Canada
Hi Wayne,
The causeway appears to have been removed in 1928, source: https://todayinottawashistory.wordpress.com/2018/07/07/dows-lake-and-its-causeway/
You can parse through the aerial photographic/ GIS maps on Geo Ottawa. Here is the link: http://maps.ottawa.ca/geoOttawa/. Select aerial maps on upper right toolbar and preferred calendar year to see change in urban development.
Thanks for the Share!
Kellan