Graham Matthews & Associates

Graham Matthews & Associates (GMA) is a small, diverse consulting firm established in 1990, and consists of hydrologists, engineers, geomorphologists and fish biologists. GMA specializes in (1) stream restoration design, implementation and monitoring, (2) hydrologic and hydraulic data collection and analysis, (3) geomorphic data collection and analysis, and (4) hydraulic and hydrologic modeling. The firm has worked on hydrologic/geomorphic issues and stream restoration designs in California, Oregon, and Idaho.