Ottawa RiverRegulationPlanning BoardCommission de planificationde la régularisationde la rivière des Outaouais

Ottawa River Regulation Planning Board

The Planning Board was established to ensure integrated management of the principal reservoirs of the Ottawa River Basin:

  • to reduce flood and drought impacts along the Ottawa River and its tributaries, all the way down to the Montreal Region
  • while maintaining beneficial water uses in the basin.

Current Conditions Summary

Water levels in metres:

View current conditions

River Conditions Forecast

Last Update: 2022-05-26 3:57 PM
Next Update: 2022-05-31 3:00 PM

Significant rainfall received in the northern part of the basin over the last two weeks has caused spring runoff in that part of the basin to increase. Further increases are expected due to 50 to 60 mm of rain expected today and tomorrow in the northern portion of the basin, with the western and central portions expected to receive up to 40 mm. Reservoirs continue to allow a large portion of the northern runoff to flow to downstream areas to maintain reservoir levels below flood thresholds. Along the main stem of the Ottawa River, because of increased water from the north and runoff from the expected precipitation, flows and levels are expected to increase slightly in most locations over the coming week. Levels are expected to remain well below flood levels in all locations along the main stem of the Ottawa River, including between Ottawa/Gatineau and the Montreal Region.

View complete forecast

Special Feature

Check out our improved website!

The section ‘About ORRPB’ now includes more information about who we are, what we do and how to stay informed about flows and levels in the Ottawa River.

Check these new pages out:

We hope you will enjoy reading these new pages!

To learn more about the Ottawa River and the management of principal reservoirs, you can view two presentations :


Latest News

River Conditions – Chats Falls

Bulletins posted on 2022-05-27 by Ontario Power Generation

As a result of higher than average inflows within the Ottawa River, it is expected that the flows and velocities

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News on the situation of the Gatineau River

Bulletins posted on 2022-05-26 by Ottawa River Regulation Secretariat

For information about the situation of the Gatineau River: Que l’Outaouais se lève – May 26, 2022 – Hydro-Québec fait

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Launching of New Web Pages

Bulletins posted on 2022-04-27 by Ottawa River Regulation Planning Board

The Planning Board is excited to announce the launching of new web pages including a new presentation about flow management

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