Ottawa River Flooding Worsens as Rain Fuels Spring Runoff

Water levels and flows on the main stem of the Ottawa River are gradually increasing from Mattawa to Pembroke, while remaining stable or slightly declining from Lake Coulonge to Carillon. Mattawa is projected to surpass major flood levels due to increased snowmelt and recent rainfall contributing to spring runoff. The Ottawa-Gatineau region is under a moderate rainfall warning, with Environment Canada forecasting up to 50 millimetres of rain. This precipitation is intensifying runoff from the northern and central parts of the basin, raising concerns about ground saturation.

Authorities are actively managing the situation by providing sand and sandbags to residents in Ottawa, with updated lists of road and pathway closures available. Gatineau also offers similar resources and an interactive map detailing affected areas. Several dozen roads have been impacted by flooding, with some becoming accessible only by boat, though some may reopen to local traffic soon. A flood relief center is operational in Gatineau, and shower facilities are available at local pools. Ferry services between Clarence-Rockland and Thurso, and Bourbonnais, are experiencing restrictions or closures.