Total streamflow across the
Ottawa River
was last observed at
473
cfs, and is expected to yield approximately
939
acre-ft of water today; about 164%
of normal.
River levels are high.
Average streamflow for this time of year is
289 cfs,
with recent peaks last observed
on
2024-04-03 when daily discharge volume was observed at
9,810 cfs.
Maximum discharge along the river is currently at the
Ottawa River At University Of Toledo Toledo Oh
reporting a streamflow rate of 365 cfs.
However, the streamgauge with the highest stage along the river is the
Ottawa River At Lima Oh
with a gauge stage of 11.35 ft.
This river is monitored from 3 different streamgauging stations along the Ottawa River, the highest being situated at an altitude of 841 ft, the
Ottawa River At Lima Oh.
The Ottawa River is a 1,271 km long river that runs through Ontario and Quebec, with a drainage basin of 146,300 km².
| Last Updated | 2026-04-19 |
| Discharge Volume | 939 ACRE-FT |
| Streamflow |
473.3 cfs
Past 24 Hours: +84.4 cfs (+21.7%) |
| Percent of Normal | 163.64% |
| Maximum |
9,810.0 cfs
2024-04-03 |
| Seasonal Avg | 289 cfs |
| Streamgauge | Streamflow | Gauge Stage | 24hr Change (%) | % Normal | Minimum (cfs) | Maximum (cfs) | Air Temp | Elevation |
|---|---|---|---|---|---|---|---|---|
|
Ottawa River At Lima Oh
USGS 04187100 |
44 cfs | 11.35 ft | 6.75 | |||||
|
Ottawa River Near Kalida Oh
USGS 04188100 |
64 cfs | 4.38 ft | -25.93 | |||||
|
Ottawa River At University Of Toledo Toledo Oh
USGS 04177000 |
365 cfs | 7.39 ft | 39.85 |
The Ottawa River (French: Rivière des Outaouais, Algonquin: Kitchissippi) is a river in the Canadian provinces of Ontario and Quebec. It is named in honour of the Algonquin word 'to trade', as it was the major trade route of Eastern Canada at the time. For most of its length, it defines the border between these two provinces. It is a major tributary of the St. Lawrence River and the longest river in Quebec.