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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Saint John River at Grand Falls Water Level
Live river level, flow, historical records and forecast for Saint John River at Grand Falls in Canada, NB, Canada, built from official government gauge data.
- Location Canada, NB, Canada
- Watershed upper saint john verte
- Primary gauge 01AF002 (Water Survey of Canada)
About Saint John River at Grand Falls
Saint John River at Grand Falls - A key point in New Brunswick's hydrology.
The Saint John River flows through the heart of New Brunswick, and at Grand Falls, it showcases the vital role this river plays in the region's hydrology. This stage of the river not only measures water levels but also its discharge, providing a complete picture of the river's health and behavior. The vast catchment area of 21,900 square kilometres drains into the river, highlighting its significance as a major waterway.
The watershed context
Situated in the Upper Saint John - Verte watershed, the Saint John River at Grand Falls is connected to several important waterways, including the Grande Riviere at Violette Bridge and the Iroquois River at Moulin Morneault. The region experiences notable seasonal cycles, especially influenced by Atlantic hydrology. Spring brings the risk of freshets due to melting snow, which can lead to ice jams on major rivers. Conversely, fall often sees rainfall events that contribute to flooding.
Why the data matters here
Understanding water levels and discharge at the Saint John River is crucial not just for river health but also for those who rely on it for daily activities - from agriculture to recreation. The river can fluctuate significantly due to seasonal changes, and by comparing today’s reading against the median for this calendar day across 14 years of historical data gathered by the Water Survey of Canada, we gain insights into current conditions. This method of comparison provides a more nuanced understanding than a simple elevation number, allowing cottagers, anglers, and local residents to appreciate the river's current state in the context of its historical behavior.
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
