Stream gauge
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A stream gauge, streamgage or stream gauging station is a location used by hydrologists or environmental scientists to monitor and test terrestrial bodies of water. Hydrometric measurements of water l
Brant Broughton Gauging Station on the River Brant in Lincolnshire, England.
Stream Gaging Station, Carnation, Washington
Stream gauge B62, a combination weir at Doddieburn, on the Mzingwane River, Zimbabwe
Plaque marking the construction of the River Dove gauging station, dedicated to Izaak Walton, author of The Compleat Angler.
Weir
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A weir, or low-head dam is a barrier across the width of a body of water that alters the flow characteristics of water and usually results in a change in the height of the water level. Weirs are used
Stream gauge
…primary device are used to improve the reliability of using water level as a surrogate for flow (improving the accuracy of the rating table), including: Weirs V-notch, broad-crested, sharp-crested and combination weirs Flumes Parshall flume…
A weir on the Humber River near Cruikshank Park in Toronto, Ontario, Canada
A weir on the Yass River, New South Wales, Australia, directly upstream from a shared pedestrian-bicycle river crossing
A weir on the Tikkurilankoski rapids in Vantaa, Finland
The broad crested weir at the Thorp grist mill in Thorp, Washington, US