Environmental guidance

Resources for environmental and transportation professionals, organized by discipline.

    Discipline guidance

    Find guidance on these environmental discipline pages to support your project documentation and delivery. Find resources on each of the following pages in the:

    • ‘Scoping’ tab - to help identify the scope of environmental work needed for your project.
    • ‘Preliminary design’ tab - to help analyze how proposed projects would impact resources in the area and look for ways to avoid and minimize impacts.
    • ‘Final design’ tab - to help finalize permit applications and modify permits and approvals.
    • ‘Tools, templates, & links’ tab - as a library of all resources available in the other tabs.
    • ‘Contacts’ tab - to help connect you with the right subject matter expert.

    Air quality, energy & greenhouse gas emissions

    Birds

    Cumulative effects & climate change

    Cultural resources & archeology

    Geology & soils

    Environmental justice & Title VI

    Endangered Species Act & Essential Fish Habitat

    Fish

    Floodplains

    Hazardous materials & solid waste

    Land use

    Marine Mammals

    NEPA & SEPA

    Noise

    Social & community

    Stormwater & water quality

    Visual & RCAs

    Wetlands & other waters

    Wildlife

    Region Environmental Managers

    Find an Environmental Manager in your WSDOT region or modal office in our Environmental Managers contact list (PDF 90KB).

    Non-compliance events

    Use these environmental compliance assurance procedures (ECAPs) if you have a non-compliance event, during:

    Commitment Tracking System (CTS)

    Use the Commitment Tracking System to manage environmental commitments. Find how-to instructions in the CTS help menu. Find related policies in our Environmental Manual Chapters 490, 590, and 600. Contact Claire Williamson, Claire.Williamson@wsdot.wa.gov, for help accessing and using CTS.

    Chronic Environmental Deficiency (CED)

    If you think your project qualifies as a CED, contact Jenni Dykstra, Jenni.Dykstra@wsdot.wa.gov. See Environmental Manual Chapter 300 Project scoping and programming (PDF 329KB).

    Winter driving tips

    Traction tires are a special type of tire

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    Carry chains, practice before leaving

    Requiring chains keeps traffic moving during storms rather than closing a pass or roadway.

    Prep your car. Fill up your gas tank,

    pack jumper cables, ice scraper, warm clothing, snacks and water.