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![A pump blows air into the riverbed to loosen the sand and gravelso the dredge can work through it later r0003007.jpg A pump blows air into the riverbed to loosen the sand and gravelso the dredge can work through it later](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_r0003007.jpg?itok=HMR5bmw4)
Description
A pump blows air into the riverbed to loosen the sand and gravelso the dredge can work through it later. (Image credit: NOAA Auk Bay Lab, K Koski)
Credit
NOAA Auk Bay Lab, K Koski
Display Date
1999
Location
Alaska, Juneau
Collection
Restoration
Community-Based Restoration Program (CRP)
Duck Creek Water Quality and Anadromous Fish Habitat Restoration