Ottawa River

Streamflow Hydrology Weather

Ottawa River Levels

May 21 2024


Discharge Volume Today
+69.5 cfs (+26.97%) since yesterday
34.85% of normal Very Low

Total streamflow across the Ottawa River was last observed at 327 cfs, and is expected to yield approximately 649 acre-ft of water today; about 35% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 939 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 Near Kalida Oh reporting a streamflow rate of 238 cfs. However, the streamgauge with the highest stage along the river is the Ottawa River At Lima Oh with a gauge stage of 11.36 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.

Last Updated 2024-05-21
Streamflow 327.2 cfs
Percent of Normal 34.85%
Maximum 9,810.0 cfs

About the ottawa river

The Ottawa River is a 1,271 km long river that runs through Ontario and Quebec, with a drainage basin of 146,300 km². The river has been an important transportation route for Indigenous peoples for thousands of years and played a crucial role in the fur trade. During the 19th and 20th centuries, the river powered many sawmills, paper mills, and other industries. The river is also used for hydroelectric power generation, with many dams and reservoirs located along its course, including the Carillon and Des Joachims dams. Additionally, the Ottawa River is a popular destination for recreational activities such as boating, fishing, and swimming, and is home to numerous parks and conservation areas. The river also supports agriculture, particularly in its watershed in eastern Ontario, where many farms rely on the river for irrigation.

Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Ottawa River At Lima Oh
USGS 04187100
40 cfs 11.36 ft -37.05
Ottawa River Near Kalida Oh
USGS 04188100
238 cfs 5.12 ft 22.68
Ottawa River At University Of Toledo Toledo Oh
USGS 04177000
49 cfs 2.82 ft -22.68

Peak Annual Discharge

Ottawa River Maximum Total Discharge

Seasonal Comparison

Ottawa River Year Over Year Discharge

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