Nibi Metrics
Real-time water levels, forecasts, and alerts for lakes and rivers across Canada and the US. Built on official government data.
Nibi Metrics turns raw gauge readings from official hydrometric networks into something a person standing on a dock can actually use: is the water high or low for today, which way is it moving, and how unusual is this? This page explains where every number on the platform comes from and what we do to it along the way.
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Grand River near Marsville Water Level
Live river level, flow, historical records and forecast for Grand River near Marsville in Canada, ON, Canada, built from official government gauge data.
- Location Canada, ON, Canada
- Watershed upper grand
- Primary gauge 02GA014 (Water Survey of Canada)
About Grand River near Marsville
Grand River - a vital artery of the Upper Grand watershed.
The Grand River near Marsville is a significant waterway situated in Ontario, part of the larger Upper Grand watershed. This river meanders through a diverse landscape that supports a variety of ecosystems, providing essential habitat for local wildlife while also serving the agricultural needs of the surrounding region. With a drainage area of approximately 664 square kilometres, the Grand River plays a crucial role in managing water flow and supporting the landscape's ecology.
The watershed context
This river flows in a region characterized by seasonal hydrology primarily driven by snowmelt in the spring. During late April to May, the waters of the Grand River swell with the freshet, marking a critical period for water levels. As temperatures rise and ice begins to melt, runoff fills the river, rejuvenating the ecosystem. This natural process is vital for replenishing water sources throughout the watershed.
As summer approaches, from July through September, natural drawdown occurs, influenced by evaporation and lower inflow rates. Early winter brings a decline in water levels as ice forms, marking another phase in the seasonal rhythm of the Grand River. This cyclical pattern is vital for maintaining the health of the watershed and the many species that depend on it.
Why the data matters here
Current readings from the Grand River near Marsville can provide insights into these seasonal variations. Monitoring water levels and flows is essential for understanding the health of the ecosystem and the availability of water for both agricultural and recreational purposes. Today’s water level reading from the Grand River station is a critical metric to consider, as it allows for comparison against the median for this calendar day across more than 50 years of historical data. This context is invaluable in assessing whether current conditions are above or below typical levels for the time of year. Regular data updates provided by the Water Survey of Canada help inform local users, such as farmers and cottagers, ensuring they can make decisions based on reliable hydrological information.
How this page is built
Readings come from official government gauges and are rolled into daily records: the daily mean, high and low for every day on record. Each calendar day gets its own baseline from the full history, so the level you see is compared against what this specific date usually looks like rather than an annual average.
How Nibi Metrics works · Water stories
