GRCA issue flood warning for entire watershed

Cheryl Sanders
January 14, 2020

In the northern and central portions of the Grand River watershed, river flows have already peaked and are now continuing to recede.

The river is expected to recede back below flood stage early Monday morning, January 20.

The rain that covered the area on Friday and Saturday totaled 1.61 inches, according to the Grundy County EMA. The municipality is suggesting residents prepare for a flooding event.

The Grand River near downtown Grand Rapids is not expected reach minor flood stage.

That's the case for areas like Elora, Wilmot and Cambridge.


The areas of Cayuga and Dunnville can still expect to see more rising water Monday night.

The Blanchard River is expected to crest below minor flood stage tonight, but steady rains over the weekend has closed some roadways because of high water.

Flows near Cayuga and Dunville are expected to exceed those experienced during the June 2017 flood. But on Monday afternoon, some areas still had road closures because of flooding.

Flows in the Grand River through Dunnville are expected to peak in the 1280 cm/s range early Tuesday morning.

Officials are warning of possible flooded roads and basements this week in some neighborhoods along the Grand River. Flood Coordinators are requested to monitor conditions on Lock Street and notify residents as necessary.


GRCA's major reservoirs at Belwood, Conestogo, Guelph, Luther, Woolwich, Laurel, and Shade's Mills were used to manage runoff from this event and reduce flooding downstream of these reservoirs.

The GRCA says that plenty of debris, like trees and branches, was swept into the water, posing an additional hazard on waterways.

The GRCA also said that the public should refrain from approaching any waterway during this time. Parents are encouraged to keep their children and pets away from all watercourses.

The Grundy County Emergency Management Agency reported that the Illinois River in Morris crested below flood stage at 15.7 feet on Sunday evening and was expected to fall to 14.4 feet by Tuesday. Updated flood messages will be issued as necessary.


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