Transportation Data, GIS & Modeling

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Drawings for new interchange locations are only available through the WSDOT Interchange Viewer Web App.

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Interchange Viewer

SR 21

 

The following drawings are ordered by milepost (MP) for the state route (SR) and are in .pdf format:

Drawings for SR 21
  See 'Additional Drawings' below.

 

 

 

The following drawing includes the State Route that you have selected, but is referenced under
a different state highway:

Additional Drawings Associated with SR 21
  SR 90/Exit 206 - SR 21   
  SR 395/MP 81 - SR 21