By CBC News Ottawa, January 19 2018
Portions of the pathway along the Rideau Canal in downtown Ottawa will be closed throughout January and February for "investigative work," Parks Canada announced Thursday.
The department will inspect the canal's concrete walls as well as subsurface soil conditions, and the information gathered will be used for future repair work in the area, Parks Canada said.
Two sections of the path will be assessed at different times, so they won't be closed simultaneously.
http://www.cbc.ca/news/canada/ottawa/rideau-canal-closed-pedestrian-february-1.4493770