Wednesday, November 17, 2010

heavy rains


I hope this bridge I built over the flood prone Saunder's Brook is doing well after the heavy rains this November in Southern New Brunswick. Something like 150mm fell over a weekend in some places.

It's flood prone because the catchment area (the watershed) has less and less forest to slow the movement of surface water movement. It's due to development. So what happens is rainfall rushes right to the brook without delay by trees and the like. It also receives the storm sewers of a number of subdivisions.

It's an increasingly impacted watercourse. Could it someday be put into pipes and paved over like so many others?

From the planet