Profile

Perkins Geosciences specializes in geomorphology, stream channel dynamics, restoration, and watershed analysis. Recent clients have included the US Army Corps of Engineers, Snohomish County, Skagit County, City of Seattle, King County, Hoh Indian Tribe, City of Kent, Parametrix, Jones & Stokes, RW Beck and Tetra Tech.

Our experience includes:

  • evaluating feasibility of habitat restoration projects from a geomorphic perspective

  • assessing channel instability in urbanizing watersheds
  • analyzing channel response to sediment inputs and riparian disturbance
  • evaluating bank erosion problems and delineating river migration hazard zones
  • conducting landslide inventories and field evaluations of slope stability
  • determining sediment transport rates and constructing sediment budgets
  • field surveys of channel geometry, sediment storage, substrate size, and LWD
  • preparing erosion control plans.

Susan J. Perkins, Principal of Perkins Geosciences, has over 20 years of combined experience in geomorphology and erosion control in forested, urban, and agricultural environments. Prior to starting her consulting business in 1996, Sue held positions with King County Surface Water Management, Shannon & Wilson, and the US Soil Conservation Service. She has a Master of Science degree in Geological Sciences from the University of Washington, where she specialized in geomorphology. Sue has extensive experience on Puget Sound rivers and streams and is regularly invited to teach workshops on fluvial geomorphology for the University of Washington, Washington Hydrologic Society and the American Water Resources Association. Perkins Geosciences is licensed with the states of Washington and Oregon as a Geologist and Women’s Business Enterprise.