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Collision Data for Local Agencies

Cities, counties, tribes, and other organizations often use collision data to identify and prioritize issues and projects. In fact, developing projects that address collisions is also a requirement for certain types of funding.

Except in some tribal jurisdictions, when a collision occurs on a local public roadway or state highway in Washington, the collision report is sent to the Washington State Patrol for storage.

WSDOT's Transportation Data & GIS division parters with Washington State Patrol to code each collision report, except citizen-generated collision reports, into the state's collision database. Local agency traffic professionals then have access to this data to make decisions.

About Citizen Collision Data

When a traffic collision occurs and a police officer is not called to the scene, drivers have the option to submit their own collision report to the police department in the jurisdiction their collision occurred.
 
December 31, 2008 was the last day that WSDOT turned these reports into collision data. Because the reliability of this type of collision report is highly variable, WSDOT no longer uses these collision reports to make decisions about grant funding for state, county, city, tribal, and other partner organizations.

Local agency traffic professionals can still view copies of these reports. See the Collision Reports section below to find out how.

Get Collision Data

Contact WSDOT's Transportation Data & GIS division to get collision data. This begins by filling out a Collision Data Request form. Instructions are on the form for how to submit it. This division then provides data in hard copy, PDF, and Excel formats. For questions please contact collisionanalysis@wsdot.wa.gov or 360-570-2454.

It is possible for cities to get access to monthly downloads of collision data as well. Contact Matty Olesh, 360-570-2465, to ask for a password to your data. If a city wants additional data beyond the one month, please follow the above instructions to fill out a Collision Data Request form.

Get Collision Reports

  1. Local agency traffic professionals can ask their police or sheriff's office for a copy of a police officer's actual collision report.
  2. They can also ask WSDOT for reports free of charge by the following methods:
    • Local agencies with an occasional need to view collision reports can request them directly from Washington State Patrol. List the collision report number(s) on letterhead stationery and email it to Tracy Perkins. Or fax the letter to: Washington State Patrol Collision Records—Attention Request Unit, at fax number 360-570-2500.
    • Local agencies with a frequent need to view collision reports can request access to an online viewer (software). Please contact Matty Olesh, 360-570-2465.

Get Collision Software

  1. Counties can get Mobility software from Washington State's County Road Administration Board.
  2. Other agencies can purchase software or get free software from WSDOT Local Programs division, called Collision Data Analysis Tool (CDAT).

Analyzing Collision Data

The Traffic Services Manager can help local agencies interpret collision data.