Drain pain

A tale of two rains, in so many cities. The 1st heavy rainfall surprises the city with floods but these are non persistent because the drainage system copes with the aftermath.  More importantly the upstream basin is filled, and the following days water raises along the main river channel blocking outfalls and drain pipes (pictured). If a second heavy rainfall happens while the drain conduits are clogged, the impact can be overwhelming.


Popular posts from this blog

New course soon

Youth engage