A true innovator, he specializes in environmentally compatible, cost-effective approaches and methodologies for design of river and streambank stabilization and riparian corridor restoration projects; stream investigation and analysis using principles of fluvial geomorphology; sediment transport analysis; navigation channel improvement effects of river training structures; innovative construction methodologies for stream stabilization works; river and stream training structure inspection, monitoring, and performance analysis; and physical movable-bed modeling.
David is a very hands-on practitioner and has been actively involved in the development of innovative workshops (assessment, design, construction, and bioengineering), innovative construction methodologies, construction layout techniques, and inspection and monitoring master plans and guidelines for stream and river restoration projects. Mr. Derrick has also been involved in dam removal projects, karst topography (sinkhole) stream stabilization, arid dry-wash restorations, as well as salmon and trout stream restoration. He has practiced in most parts of the country, and his knowledge and practical experience ranges from the Mississippi River to the very smallest of streams.
Mr. Derrick has developed and/or refined numerous cost-effective streambank protection techniques, grade control methods and habitat restoration freatures in the projects that he has worked on.