Harpeth River at Mile 90.5 near Franklin Water Level

Live river level, flow, historical records and forecast for Harpeth River at Mile 90.5 near Franklin in TN, United States, built from official government gauge data.

About Harpeth River at Mile 90.5 near Franklin

The Harpeth River at Mile 90.5 near Franklin sits in the Harpeth watershed in Tennessee.

What the record shows

This station has 11 years of record from the USGS, so the page is built on a short but useful local history.

The record high is 27.4 ft (8.35 m), reached in March 2021. The record low is 1.29 ft (0.39 m), reached in August 2024. That spread matters for anyone watching banks, ramps, or an intake: this reach has moved from very low water to a much higher stage within the record.

The seasonal pattern is clear. February is the typical high month at 4.19 ft (1.28 m), while September is the typical low month at 1.83 ft (0.56 m). The typical annual swing is 28.3 in (71.9 cm). For a dock or shallow crossing, that is the range to plan around, not a single reading.

The watershed

The gauge drains 183 sq mi (474 km2) upstream of this station.

This is a steep-tributary setting, so water can rise fast after winter and spring rain. That means short notice when runoff is building, especially on smaller feeder streams that respond quickly to heavy rain.

For anglers, that pattern can change clarity and access from week to week. For landowners and river users, it means the stage can shift quickly after storms, while late summer and early fall are usually the lower end of the year’s cycle.

Reading the hero number

The hero number on this page is today’s stage compared with the median for this same calendar day across the station’s record. That is more useful than raw elevation because it tells you whether the river is running high or low for this date, not just how many feet are on the staff.

At this USGS station, that comparison is the right way to read the water because the record is only more than 11 years long and the river’s normal level changes through the year.

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.

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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.

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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.

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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.

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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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