FEMA Habitat Assessment

Habitat assessments for FEMA requirements

A FEMA Habitat Assessment is an evaluation of development impacts on federally-threatened salmonids and/or southern resident killer whales, prepared by a qualified biologist. A habitat assessment is similar to a Biological Evaluation, except that it applies to projects with development proposed within the 100 year floodplain, channel migration zone, or within 250 feet from a stream or river with a mapped floodplain. 

How FEMA Habitat Assessment Works

Site Evaluation

A biologist will evaluate impacts to listed salmonids based on the proposed project plans, existing site conditions, and listed species presence. Biologists assess how the project will impact:

  • Flood storage
  • Stormwater drainage
  • Water quality
  • Riparian vegetation
  • Instream Habitat

Report & Map Preparation

The Watershed Company's team of planners, biologists, and GIS analysts provide the guidance, analysis, and maps to complete these habitat assessments. Project impacts assessed include:

  • Flood storage
  • Bank armoring
  • Channel straightening
  • Vegetation removal
  • Construction impacts
  • Water quality

The report will include conservation measures to avoid, minimize, and offset impacts. If needed, a mitigation plan will identify ways to compensate for the unavoidable impacts.

Work with Us!

We've completed FEMA habitat assessments for residential, commercial, and recreational developments throughout the Puget Sound region. Call Sarah at (425) 822-5242 for a free cost estimate.

  • FEMA habitat assessment
  • FEMA floodplain mapping
  • Mitigation design for floodplain impacts
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425.822.5242 or
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