River Flows

Alberta River Flows

The AESO works with Hour Ending (HE), which means that HE 01 starts at 00:00:01 (right after midnight) and ends at 01:00:00. HE14 starts at 13:00:01 and ends at 14:00:00. HE24 starts at 23:00:01 and ends at 24:00:00 (midnight).

This data is updated in near-real time and flows are shown in cubic meters per second (cms); 0 cms means that the plant is off line or not running.

Water travel from Barrier dam to Canoe Meadows takes about 45 minutes. For a live view of river flows at Barrier, click on the web camera link:

Click on the image above to view the live-stream.
*Please note: The live-stream above is only accessible through Google Chrome. 

Day 0 Day 1 Day 2 Day 3
Hour Ending Time Barrier Pocaterra Barrier Pocaterra Barrier Pocaterra Barrier Pocaterra

Operation will follow requirements from Alberta Environment and Parks as per the multi-year agreement with TransAlta. More info here.


  1. Actual flows and levels are often more or less than projected and at times can vary considerably. Actual flows are also subject to change without public notice.
  2. The public is advised to remain clear of all waterways immediately upstream and downstream of TransAlta’s hydro facilities as flows may change rapidly and without notice. TransAlta’s first priority is the safety and well-being of employees, the public, and the communities where we live and work. Obey all signage and barricades.

Visitors and campers to Alberta’s parks are advised to review Alberta Parks and Banff National Park for current safety advisories. For information on reservoir levels and flows at other locations in Alberta, please visit Alberta Environment – river basins.