Assunpink Creek below STP near Mercerville NJ Water Level
Live river level, flow, historical records and forecast for Assunpink Creek below STP near Mercerville NJ in NJ, United States, built from official government gauge data.
- Location NJ, United States
- Watershed middle delaware musconetcong
- Primary gauge 01463882 (USGS)
About Assunpink Creek below STP near Mercerville NJ
Assunpink Creek below STP near Mercerville NJ is a gauged river in the Middle Delaware-Musconetcong watershed, New Jersey.
Season by season
This reach sits on a small upstream area of 78.8 sq mi (204 km2), so local rain can show up quickly at the gauge. The seasonal pattern is modest but real: the highest typical month is March, at 2.84 ft (0.87 m), while the lowest typical month is September, at 1.73 ft (0.53 m). For a dock, bank access, or a small intake, that 13.3 in (33.7 cm) swing is the range to keep in mind through the year.
The Middle Atlantic pattern fits that shape. Winter and spring are the months when rain-driven rises are more common, while late summer is when low water tends to show up. On this creek, that means March is the month to watch for the most water, and September is the month when the channel is usually carrying less.
Records and rises
The station has 17 years on record, which gives a useful picture of what this reach has already done. The record high is 16.83 ft (5.13 m) in August 2011. The record low is 1.38 ft (0.42 m) in September 2010.
Those two values matter because they bracket the range anglers and nearby landowners can expect to see at this site. The high end shows that this creek can rise far above its typical spring level, and the low end shows that late-summer water can get close to the bottom of the observed range. If you use the creek for access, crossing, or pumping, both ends of that record are worth respecting.
Reading the hero number
The number on the page is most useful when it is compared with the median reading for this calendar day across the station’s 17 years on record, rather than read as a stand-alone height. A raw elevation tells you where the water is; the day-of-year median tells you whether it is running high or low for this date.
That context is what the USGS gauge provides here. It lets you judge today’s reading against what is normal for this point in the season, which is more useful for planning than a number by itself.
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
Nibi Metrics - live water levels, flow, and forecasts for lakes and rivers across Canada, the US and the UK
Real-time water levels, forecasts, and alerts for lakes and rivers across Canada, the US and the UK. Built on official government data.
Nibi Metrics tracks more than 13,000 gauged lakes and rivers across Canada, the United States and the United Kingdom, reading directly from official federal monitoring networks: the Water Survey of Canada, the United States Geological Survey, Quebec's provincial hydrometric network, and the Environment Agency for England. Every number on the platform is measured, not modelled - taken from a government gauge on the water itself and compared against that location's own historical record for this exact date.
What you can see for any monitored lake or river
The level right now, in feet or metres, updated as the source agency publishes new readings - for many stations that is every five to fifteen minutes. How today compares to typical: every location carries its own typical-for-this-date band built from its historical record, so a reading is never just a number - it is above, below, or near what this water usually does on this calendar day. Which way it is moving: a measured RISING, FALLING, or STEADY verdict computed from the gauge's own recent readings, with the rate of change - the difference between a flood ending and one beginning. What comes next: level forecasts up to 72 hours ahead, driven by the gauge's recent behaviour, upstream water, and quantitative precipitation forecasts, alongside live radar, lightning, and weather for the surrounding region.
Alerts that watch the water for you
Set a threshold on any location - a level, a distance above typical, or a rate of climb - and Nibi emails or notifies you the moment the gauge crosses it. Cottagers use it for spring freshet, anglers for river conditions, marinas and municipalities for operations. The scanning runs around the clock against the same measured data shown on every page.
Where Nibi comes from
Nibi means water in Anishinaabemowin. The platform began at a family cottage on Lake Muskoka, Ontario, where the spring melt floods the shoreline most years and the only forecast was standing on the dock, looking, and guessing. It grew into an independent, member-funded platform run by Muskoka Research Inc. - no investors, no data resale, and a privacy policy shorter than most cookie banners. The core data is free for everyone, forever; paid plans add automation like multi-location alerts, deep history, and reports.
Coverage
Nibi spans the continent: every Canadian province and territory with active federal gauges - from Vancouver Island rivers to the Muskoka lakes, prairie reservoirs, and Quebec's hydrometric network - and the United States from Maine to the Texas Hill Country, the Ohio Valley, and the Pacific Northwest. Coverage grows where the water news is: when a basin floods, its gauges join the platform with their full historical records attached. Many stations report every five to fifteen minutes; most report at least hourly; every page states exactly when its gauge last spoke.
Free forever, funded by members
The core promise is simple: the water data is free, for everyone, forever. Live levels, maps, radar, and recent history never sit behind a paywall. Paid plans fund the platform by adding automation - multi-location alerts, decades of history, longer forecasts, and PDF reports - so the people who need more carry the cost for everyone who just needs to check the lake before driving up. There are no investors and no advertising deals shaping what the data says.
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How every number is computed - About the platform
