Here Is The Latest Flood Warning Update Issued By The GRCA

By: Kw Now! Local Safety News
| Published 04/08/2014


GRCA Flood Message #5

WARNING: Stay Away From The Banks Of Local Waterways

Here is the latest Flood Warning Alert issued by the Grand River Conservation Authority.

GRCA staff will continue to closely monitor weather forecasts and provide updates to this Flood Watch message based on predicted temperatures and rain. This watch is in effect until noon on April 10, 2014 at which time it will either be updated or cancelled.

- Flood Warning Cancelled for New Hamburg, Ayr, Cambridge;
- Flood Watch extended for Upper Grand, Conestogo, Nith, Speed

Last night’s heavy rains were confined to the most southerly portions of the watershed sparing the Nith and Speed Rivers from flooding.

As a result, the GRCA is cancelling the Flood Warning, issued April 7th, for New Hamburg and Ayr on the Nith River and for Cambridge on the Speed River. The Flood Watch has been extended for parts of the Upper Grand, Conestogo, Nith and Speed Rivers.

Increasing daytime high temperatures, expected to reach the mid-teens by Thursday are expected to melt the balance of the remaining snow pack in the upper watershed, which will extend the periods of high flows into the weekend.

The GRCA will continue to fill its reservoirs with the spring melt runoff and will increase discharges as necessary into the Lower Grand, Conestogo and Speed Rivers to stabilize reservoir elevations. These discharges will be bumped up as the peak snow melt fills the reservoirs later in the week.

Flood Watch Message

The flood watch message issued on April 7th has been extended based on the latest forecast to identify the following areas that require surveillance this week.

Flooding will persist in low-lying areas along the Grand, Conestogo, Nith and Speed rivers as the spring melt continues.

Grand River in Grand Valley and Waldemar

Flows as a result of snow melt combined with the potential for ice jams creates the possibility of some road flooding in in Grand Valley and Waldemar over the next two days.

Conestogo River in St. Jacobs

Flows in the Conestogo River have forced the closure of the low level bridge upstream of St. Jacobs. The flood coordinator of Woolwich Township is asked to maintain closure of this bridge until further notice.

Nith River in Ayr

The GRCA are asking municipal staff to reopen Tannery Street in the Village of Ayr and maintain surveillance for possible flooding of low lying areas.

Speed River in Cambridge

The GRCA are asking City of Cambridge Public Works to reopen Black Bridge and assess the ability to maintain access to the walking trail under the 401.

Water Safety Message

Banks adjacent to rivers and creeks are slippery and when combined with cold, fast-moving water pose a serious hazard. Parents are encouraged to keep their children and pets away from water courses and off any remaining frozen water bodies.

For more information:

· For more information on flows, weather and reservoir conditions see the River Data section of the GRCA website at

· For more information on the flood warning system see the Flood Management section of the website.