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Flooding

Flooding along the Grand River Watershed – Guelph Lake & Speed River

The Grand River Conservation Authority (GRCA) is responsible for forecasting floods and issuing flood warnings.

These are the types of messages issued by the GRCA:

  • Watershed conditions statement: Issued when river and channel conditions exist. There are two categories of statements:
    • Water Safety: High flows, unsafe banks, melting ice or other factors have made watercourses dangerous for recreational users e.g. canoeists, swimmers, anglers, hikers, boaters, etc. but flooding is not expected.
    • Flood Outlook: Early notice of the potential for flooding based on weather forecasts calling for heavy rain, snow melt, high winds or other conditions that could result in high runoff or ice jams or lakeshore flooding.
  • Flood Watch: Flooding is possible. Municipalities and individuals should prepare.
  • Flood Warning: Flooding is occurring or is about to occur. Municipalities and individuals should take action to deal with flood conditions. This may include road closures and evacuations. The warning may include forecasts of how high the water will rise and the time of the peak.

When flooding is possible or occurring, messages are sent to municipal flood coordinators, police services, radio stations and televisions stations throughout the watershed.

Municipal flood co-ordinators are senior municipal staff, such as fire chiefs and public works managers, who are familiar with flooding conditions in their community and can mobilize staff and resources to implement the local flood response plan.

To report flooding in the City of Guelph please call 519-837-5628.

After-hours contact numbers

Bylaw enforcement
519-837-2529

Emergency locates (ON1Call)
1-800-400-2255

Noise complaints
Guelph Police
519-824-1212

Operations
(e.g. traffic lights, road obstructions)
519-837-5628
select “1” for emergencies

Parks
519-837-5626

Parking exemptions
519-836-7277

Power outages
Guelph Hydro
519-822-3010

Railway concerns
519-501-3221

Spills
Guelph Environmental Protection Officer
519-837-5629

Ministry of the Environment Spills Action Centre
1-800-268-6060

Wastewater Services
519-837-5629

Water Services
519-837-5627