Egoût collecteur Rivière Saint-Pierre,1933

Here are historical photographs taken on 31 October 1933 showing the burying of the St. Pierre River. The only section of the St. Pierre River still above ground is in Meadowbrook Golf Course and it is slated to be buried. The question is, why? Because it is polluted with fecal matter from incorrectly connected sewer pipes near the golf course? Isn't the common sense thing to do is to stop the pollution, not bury the river? I suppose the cheaper thing to do is to bury the remaining exposed section of the river. But government has a lot of our money they can spend any way they want and common sense isn't something government is known to have. 

This is a section of the St. Pierre River before it was covered but not necessarily the same section as in
the photographs below ...