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WSDOT accountability

Gray Notebook 71
2018 Corridor Capacity Report

According to Governing Magazine, WSDOT is the "gold standard" in government performance reporting. Our performance reports are transparent, credible and accurate.

Performance publications

WSDOT is a recognized leader in providing accessible, transparent, credible and accurate performance reports on agency programs and projects. The Gray Notebook (GNB) and Corridor Capacity Report (CCR) are just two examples of this work. WSDOT is a partner in state and federal performance initiatives. Read more: Performance measurement library.

The Gray Notebook

The latest edition of the Gray Notebook (pdf 5.1mb), WSDOT’s primary transportation system performance report is now available
for the quarter ending September 30, 2018. 

Read more about the Gray Notebook.

Congestion reporting & the Corridor Capacity Report

WSDOT’s 2018 Corridor Capacity Report informs readers about the state of congestion and transportation capacity in Washington state. Learn more about congestion reporting. Read the latest Corridor Capacity Report (pdf 5.1 mb)

MAP-21 performance management

In July 2012, the Moving Ahead for Progress in the 21st Century Act (MAP-21) became law. WSDOT is tracking the release of MAP-21's proposed rules and has created a webpage featuring folios and other resources.


Performance story maps

A performance reporting gallery features some of the story maps that illustrate WSDOT performance.

The GNB features four interactive online maps that showcase WSDOT’s work around the state and include graphs and data as well as links to additional online resources.

Legislative Reports

Studies related to state laws and issues before the Washington State Legislature can be found at Legislative reports for 2017-2019.