Documents Hydraulic Cover Stones (HCS). THIS METHOD IS A DAVE DERRICK DISCOVERY (DDD)

Slide 1 Hydraulic Cover Stones (HCS) Slide 2 THIS METHOD IS A DAVE DERRICK DISCOVERY (DDD) Slide 3 Hydraulic Cover Stones (HCS) are typically large single stones placed in…

Documents Hydraulic Cover Stones (HCS) By Dave Derrick, Potomologist & VP, River Research & Design, Inc.

Hydraulic Cover Stones (HCS) By Dave Derrick, Potomologist & VP, River Research & Design, Inc. Hydraulic Cover Stones (HCS) are typically large single stones placed…