PORTNEUF RIVER

River Levels Streamflow Hydrology
November 21, 2024

TOTAL DISCHARGE (CFS)

SUMMARY

Last Updated 2024-11-20
Discharge Volume 1,603 ACRE-FT
Streamflow 808.0 cfs
-5.0 cfs (-0.62%)
Percent of Normal 110.65%
Maximum 3,549.0 cfs
2023-05-28
Seasonal Avg 730 cfs

Total streamflow across the Portneuf River was last observed at 808 cfs, and is expected to yield approximately 1,603 acre-ft of water today; about 111% of normal. Average streamflow for this time of year is 730 cfs, with recent peaks last observed on 2023-05-28 when daily discharge volume was observed at 3,549 cfs.

Maximum discharge along the river is currently at the Portneuf River Nr Tyhee Id reporting a streamflow rate of 439 cfs. However, the streamgauge with the highest stage along the river is the Portneuf River At Pocatello Id with a gauge stage of 5.24 ft. This river is monitored from 3 different streamgauging stations along the Portneuf River, the highest being situated at an altitude of 4,925 ft, the Portneuf River At Topaz Id.

YEAR OVER YEAR DISCHARGE (CFS)

Streamflow Conditions
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Portneuf River At Topaz Id
USGS 13073000
128 cfs 2.61 ft -5.56
Portneuf River At Pocatello Id
USGS 13075500
250 cfs 5.24 ft -0.4
Portneuf River Nr Tyhee Id
USGS 13075910
439 cfs 4.11 ft 0.69
History of the River

Portneuf is a municipality in the Portneuf Regional County Municipality, in the province of Quebec, Canada. It is located on the Saint Lawrence River, between Quebec City and Trois-Rivières. The Portneuf River runs on the east side of the town centre.
The town of Portneuf is named after a seignory that was founded in 1636, and first settled in 1640.
The municipal territory consists of 2 non-contiguous areas, separated by the municipality of Sainte-Christine-d'Auvergne. The smaller northern portion is undeveloped, whereas the southern piece is the main inhabited part with the population centres of Portneuf (south of Autoroute 40), and the adjacent Notre-Dame-de-Portneuf, north of A-40. The present-day municipality was created in 2002, when the old city of Portneuf merged with the town of Notre-Dame-de-Portneuf.The town is located on the Chemin du Roy, a historic segment of Quebec Route 138 that stretches from near Montreal to Quebec City. The town is also close by to A-40, where Provencher Street connects to the town at Exit 261.
One of Portneuf's major employers is a local paper mill owned by Metro Paper Industries, a Toronto-based paper company. Paper had been a major part of Portneuf's development since the first paper mill opened in 1839.

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