RiverTrax: River Levels & Flow

RiverTrax: River Levels & Flow

Water Conditions & Forecast

5 ratings
1 review
Free

Details

  • Released
  • Updated
  • March 28, 2026
  • September 5, 2026
RiverTrax: River Levels & Flow screenshot #1 for iPhone
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About

Provides real-time river conditions, including water level, discharge, and flood stage from thousands of monitoring stations. Offers personalized alerts for ideal flow ranges and potential flood stages, with a journal feature to log river conditions.

Live USGS/NOAA gauge readings
Home screen widgets for quick access
Interactive discharge and forecast charts
Customizable 'Sweet Spot' flow alerts
Flood stage and threshold notifications
Upstream/downstream gauge navigation
River journaling with condition stamps
Show original description
+1

What's New in RiverTrax

1.6

September 5, 2026

This update is housekeeping. But if you're new here — or haven't opened RiverTrax since early summer — here's what landed recently. RIVER STRETCHES — conditions for the water that has no gauge Only about 12,000 rivers in the U.S. have a sensor in the water. The creek behind your house, the section below the dam, the gorge run — nothing. Now you can tap any river or creek on the map, name it your way, and save it next to your favorite gauges. You get its estimated flow, trend, and 10-day outlook, modeled by NOAA's National Water Model and updated hourly. • Save and name any stretch — "Below the dam," "The gorge section" • Estimated flow, trend direction, and a 10-day outlook on water with no sensor • Honest uncertainty: a number where the model is solid, a range where it isn't, and "estimate unavailable" rather than a confident wrong answer • Pin a reference gauge to translate the estimate into the height that gauge would read — with its real measurement right beside it • Set a good range and see it shaded on the 10-day chart • See every USGS gauge on the same waterway from any stretch • Journal entries on stretches, condition-stamped automatically • Rivers turn blue on the map up close — tap any of them, gauged or not HOW THIS WORKS A plain-language explainer covering where every number comes from, what a gauge actually measures, how a stretch is estimated, and how much to trust each one. In About, and from any gauge or stretch. Notice something off with a gauge reading or a forecast? Let me know at traxlabsllc.com/rivertrax. RiverTrax is built by one person, and every report gets read.

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User reviews

Great features

Great USGS water data app, tons of helpful features. The river journal, multiple types of flow alerts, instantly being able to jump up or down river from within a gauge are all so helpful and valuable. As a fishing guide, avid angler, and boater the only thing it is severely missing is water temps. Please add water temps and graphs where available ASAP!
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FAQ

What is RiverTrax?

RiverTrax provides live river conditions from thousands of USGS and NOAA gauges, including water level, discharge, and flood stage. It also offers personalized alerts and a journaling feature to track river events.

Is RiverTrax free to use?

Yes, RiverTrax is completely free to download and use. It does not have any in-app purchases or advertisements, offering a seamless experience for all users.

What devices does RiverTrax support?

RiverTrax is currently available for iPhone. Future support for other devices may be considered based on user demand and development resources.

How often is RiverTrax updated?

RiverTrax was last updated on July 12, 2026, with version 1.4. The app receives regular updates to ensure data accuracy and introduce new features based on user feedback.

What age rating does RiverTrax have?

RiverTrax has an age rating of 4+. This indicates that the content is generally suitable for all ages, with no mature themes or potentially concerning material.

Can I set alerts for specific river conditions with RiverTrax?

Yes, RiverTrax allows you to set customizable alerts for flood stages, specific discharge (CFS), or gauge height (feet). You can also set 'Sweet Spot' alerts for your ideal flow ranges.

Does RiverTrax require an account to use?

No, RiverTrax does not require an account to use. You can find your river, save favorites, and start using its features immediately upon downloading the app.

What kind of data does RiverTrax display?

RiverTrax displays live readings such as water level in feet, discharge in CFS, flood stage classification, and trend direction. It also shows official NWS forecasts and historical data through its charting and journaling features.