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.

These drawing provide the necessary details for fabrication and construction.

Drainage structures and hydraulics installation requirements.

Fence and glare screen installation requirements.

Details and guidance for fabrication and installation of signals, illumination and ITS.

These plans show types of bollards used on roadways.

These drawings provide the necessary details to install pavement markings.

Plans and drawings that depict the installation of a sign supports.

These plans provide the necessary details to fabricate, construct and install traffic barriers. Note that the use of all Traffic Barrier-TB plans is restricted to WSDOT internal use only. Contact HQ Design for more details.

These Typical Traffic Control Plans (TCPs) are detailed drawings showing the layout of temporary road signs and devices to warn and guide traffic past, around and through the work site safely.

as recorded by WSDOT and partners in 2020 and 2021.

to our monitoring program in 2021 to help offset climate change impacts.

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