Oil transportation risk assessments and studies

Washington is experiencing rapid changes in the types of crude oils that are moving through the state, the methods used for oil transportation, and the locations where crude is moved. A major oil spill or fire could have severe consequences to public safety, the environment, local economies, and overall quality of life.


Tank ship tied up alongside a pier at a facility in Grays Harbor. (Photo by Port of Grays Harbor)

Our risk assessments help prepare and plan for response to oil-related incidents that could impact major waterways. By evaluating when and how oil moves through the state and the associated risks, we can make recommendations for cost-effective spill prevention measures while protecting public health and safety, the state's economy, and the environment.

Grays Harbor

Grays Harbor Vessel Traffic Risk Assessment (GHVTRA)

The Grays Harbor Vessel Traffic Risk Assessment, completed in December 2018, follows similar risk assessments we’ve completed for the Columbia River and Puget Sound. GHVTRA goals:
  • Assess baseline and changing oil spill risks
  • Identify measures that could help reduce the risks of oil spills
  • Assess oil spill response preparedness
  • Identify baseline oil spill response capability

Why it matters

Around 100 deep-draft commercial vessels call on Grays Harbor each year. It is the home of a significant commercial and tribal fishing fleet and one of the most valuable commercial fishing operations on the West Coast. Nearby Grays Harbor National Wildlife Refuge is one of four major staging areas for shorebirds in North America. A major spill here could have severe consequences to the environment, economy, public health, and cultural and historical resources.

Benefits of a risk assessment

Vessel traffic risk assessments help local communities prepare and plan for a response to oil-related incidents that could impact major waterways. Our participation adds value because we know when and how oil moves through the state and the associated risks, so we can recommend cost-effective spill prevention measures locally.

Our process

We began this work in 2017, working closely with tribes, local, state and federal partners, and environmental groups. We used the International Maritime Organization Formal Safety Assessment process to conduct the assessment. We facilitated two workshops to complete Hazard Identification, the first step in Formal Safety Assessment. During the Hazard Identification workshops, participants identified local factors related to oil spill risks, reviewed safeguards currently in place, and discussed recommendations that could improve spill prevention for commercial vessel traffic.

Building on the Hazard Identification outcomes, we met with governments and stakeholders to discuss a follow-on project, which will assess oil spill response preparedness in Grays Harbor. We also held a workshop for commercial and tribal fishermen and recreational boaters. This workshop provided an opportunity to identify practices for improving safety and preventing oil spills from smaller vessels.

Columbia River Salish Sea 2014 study