North Santiam at Greens Bridge (14184100)

Graph of streamflow over time at North Santiam at Greens Bridge (14184100) between January 5th - January 22nd, 2023. Two speaker symbols represent the approximate timing of hydrophone audio recordings of river water moving gravel and cobbles along the channel bottom. The first recording on January 7th, was during a high streamflow event, and was collected when sediment sampling confirmed river bedload movement. The second recording on January 19th occurred during lower flows when sediment sampling confirms no bedload movement.