Graham Matthews & Associates

Graham Matthews & Associates (GMA) is an experienced, diverse consulting firm established in 1990, comprised of hydrologists, geomorphologists, and biologists. The company is led by Graham Matthews, Principal Hydrologist, who has over 29 years experience in hydrology, fluvial geomorphology, and stream restoration design and construction.

GMA is noted for the development of technically sound management and restoration plans for rivers, estuaries and watersheds, and provides expertise and consulting services over a full range of hydrologic, geomorphic, geologic, and engineering services.