About Us

River Research & Design was formed in 1997 to provide services in river hydraulics, stream restoration, sediment transport and multi-dimensional modeling of hydraulics and sediment transport.  We have experience in most, if not all, of the nation.  We have also completed projects internationally.

Dr. Gary Freeman provide expert witness services in the areas of river/stream hydraulics, stream restoration, sediment transport, and river behvior.  His experience in stream behavior (fluvial geomorphology) combined with his legal training means that he can understand both the technical and legal challenges of a project or legal matter.

Dave Derrick works extensively in all parts of the United States in the area of potomology (river behavior), bank protection and stream restoration.  He is a fluvial geomorphologist and has extensive experience with physical models for both hydraulics and sediment transport.  His physical modeling experience was obtained working with large scale models of navigation and sediment problems on the Misssissippi River as well as smaller rivers and streams.  This experience enables him to understand water and sediment behavior in rivers and streams.  This understanding is key to successfully restoring streams or protecting stream banks.