What may at first glance seem to be a jersey barrier* in the woods is really one abutment of a culvert crossing on the former CPR (?) tracks that ran west along the Ottawa River where the Ottawa River Commuter Expressway is now.
The rail right of way was expanded and converted into a car road allowance in the early 1960’s following Greber’s plans for scenic drives throughout Ottawa. Many of these drives were never completed, but the NCC still holds numerous rights of way undeveloped, waiting for LRT, other transit, or a serious non-recreational cycling network. Toronto, not blessed with the NCC holding open rights of way, is examining if it can convert hydro-electric rights of way into a commuter cycling network.
The right most abutment in the above photos shows up well because it has been painted cream, probably to cover grafitti. The left abutment is au naturel.
Also missing is the creek it crossed. It has long since been redirected into a storm sewer, to the detriment of birds and other natural life systems it should be supporting.
*a jersey barrier is one of those portable concrete barriers used to block off lanes during construction. they can be linked together and provide physical safety to workers and successfully intimidate car drivers. They help ensure cyclists have no room between cars and the side of the road. Popularized by the NJ Dept of Transport.