Hamilton to identify “hot spots” for overland flooding

Efforts are under way to assign coordinates for about 900 overland flooding “hot spots” in Hamilton, Ontario where water traditionally backs up or overflows after big storms.

Digitally mapping the hot spots – mostly storm water inlets and outlets that back up or overflow in heavy rain – will enable municipal crews to prioritize inspection areas before extreme weather strikes, the Hamilton Spectator reports. The sites include culverts, pipe outfalls, sewer grates and underpasses where debris tends to become stuck.

The Hamilton Spectator reports more than 160 residents complained to the city about flooding following a storm on July 22, most of which was a result of overland flooding, and at least 15 have filed claims with the city.

An estimated 66 millimetres of rain fell on July 22, prompting basement flooding, temporary road closures, fallen tree limbs and the closure of parts of Mountain Community Recycling Centre.

A city official is quoted as saying that as improvements are made, the number of “hot spots” can be removed or new ones added as potential problem areas are identified.