US BMH-80 Sampler

HIF/FISP Part # 4103011

The US BMH-80 is a hand-held rotary-scoop bed-material sampler with a semi-cylindrical bucket for collecting the sample. Operation is simple: the sampler is placed on the streambed and the lever on the handle closes the bucket, collecting the sample. The sampled material is protected from washing out while rising through the water column. The sampler is approximately 56 in long and weighs 8 lbs.

The sampler can be used in sand-bed and gravel-bed streams up to approximately 3 ft deep. It will collect a sample volume of approximately 15 in3 (250 cm3) of material and will sample to a maximum bed material depth of 1.75 in. HIF Repairable.

Where and how the sampler is deployed in the field is as important as the fundamental design of the sampler. Additional information about how to properly use this sampler can be found in the following references:

Edwards, T.K., and Glysson, G.D., 1999, Field Methods for Measurement of Fluvial Sediment: U.S. Geological Survey Techniques of Water Resources Investigations, book 3 chapter C2, 89 p.