Plan sheet library
Find drawings and details that cannot or do not qualify as Standard Plans, but may need to be included in contract documents. Includes items that require adjustment for site or application specifics, experimental designs and retired Standard Plans.
These drawings were developed and provided "as is" and are supported by the Headquarters Design Office. The user assumes full responsibility for the plan’s adequacy to address a specific construction situation and for any alterations to the drawing by the user.
When a drawing from this Plan Sheet Library is used in a contract document, a Professional Engineer must review the plan and accept full responsibility for its contents in the manner prescribed by the Washington State Department of Licensing.
Evolving standards and barrier standard plans
WSDOT continues, in cooperation with FHWA, its implementation of the AASHTO Manual for the Assessment of Safety Hardware (MASH). MASH is the new national standard for crash testing and design of new roadside barrier. WSDOT has removed a number of standard plans that do not represent MASH compliant design, while new designs are in development and published over time. These plans can be viewed on this page and may be incorporated into projects upon review and on a case by case basis.
Note that the use of all Traffic Barrier-TB plans is restricted to WSDOT internal use only. Contact HQ Design for more details.
These drawings each have a narrative explaining the intended use and some of the possible impacts associated with usage.
Slow down – lives are on the line.
In 2023, speeding continued to be a top reason for work zone crashes.
Even one life lost is too many.
Fatal work zone crashes doubled in 2023 - Washington had 10 fatal work zone crashes on state roads.
It's in EVERYONE’S best interest.
95% of people hurt in work zones are drivers, their passengers or passing pedestrians, not just our road crews.