MEI specializes in the geomorphology, hydrology, hydraulics and sedimentology of rivers and streams. Our experitise includes the full range of stream types from lowland fine-grained, sand-bed systems to steepland coarse-grained, gravel-bed systems. MEI has successfully completed projects throughout the U.S. and internationally in climatic conditions ranging from tropical to temperate to arid. MEI has active or recently completed projects in Colorado, Montana, Idaho, California, New York, South Dakota, New Mexico, Wyoming, Utah, Nevada, Arizona, Texas and Indonesia as well as New Zealand. These projects include:

• identification of watershed sediment sources and quantification of sediment yields
• identification of causes of both vertical and lateral channel instability, and development of appropriate solutions
• evaluation of flooding potential and identification of regulatory floodplains
• evaluation and mitigation of river-related infrastructure damage
• channel design, reconstruction and restoration following major natural and man-induced perturbations
• development of in-channel and channel-margin habitat improvements for endangered fish and terrestrial species, as well as for sport fisheries.

MEI also specializes in evaluation of incised channels. Drs. Harvey and Schumm were co-authors of Incised Channels: Morphology, Dynamics and Control, a textbook that was published by Water Resources Publications. Drs. Mussetter and Harvey were the primary authors of the Sediment and Erosion Design Guide, prepared for the Albuquerque Metropolitan Arroyo Flood Control Authority to provide guidance to local agencies and consultants in evaluating erosion and flooding processes in the arroyos in the area.

MEI's principals serve as the primary technical experts to evaluate channel maintenance flows in the National Forests of Idaho and Colorado for the Attorneys General of both states.

MEI's principals have extensive litigation-support experience. They have been qualified as experts in hydraulic engineering, sedimentation engineering and fluvial geomorphology and have provided expert testimony in both state and federal courts in cases involving:

• reserved water rights
• channel maintenance claims
• mined land reclamation
• levee failure
• riparian property boundaries and ordinary high water determination
• flooding
• reservoir operation
• channel erosion and stream capture
• sand and gravel mining impacts and pipeline failure.