USGS Multimedia Gallery
Title: Measuring Streamflow Through a Weir
Description: Pew Creek below Johnson Road, Lawrenceville, Ga. The metal structure is a "V" weir. A sediment dam was built on either side of it to force the water through the weir. Scientists can calculate gallons per minute flow in the stream by timing how long the flow took to fill a bucket.
Location: Lawrenceville, GA, USA
Date Taken: Oct 17 2007
Photographer: Alan Cressler
Usage: This image is public domain/of free use unless otherwise stated. Please refer to the USGS Copyright section for how to credit the photo.
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