About ICF

Shannon Crossen

Senior Biologist, Conservation Biology and Transportation Ecology
Shannon develops pragmatic, interdisciplinary, and feasible solutions to mitigating ecological disruptions with nearly 15 years of experience.

Shannon is a specialist in conservation biology and transportation planning with nearly 15 years of experience. She conducts conservation and connectivity assessments and planning throughout California, Oregon, and Washington. Before this role, Shannon worked as a biologist with the California Department of Transportation.

Shannon's experience spans research and planning in habitat restoration, wildlife-roadway mitigation development, and wildlife population dynamics and distributions. She’s particularly interested in wildlife connectivity assessments, the design of wildlife crossing structures, wildlife-human conflict remediation, and wildlife noise impact assessments and mitigation development.

Shannon has a strong background in biological resource planning and project management with expertise in transportation-related development and planning. She conducts biological resource impact assessments and prepares biological resource technical studies for environmental documents, including the National Environmental Policy Act, SEPA, and the California Environmental Quality Act. She also coordinates with environmental regulatory agencies and prepares environmental regulatory permitting and Endangered Species Act consultations.

  • M.S., Environmental Science, Montana State University
  • B.S., Biology, Biodiversity, Ecology, and Conservation Biology, California State University