ODOT Maps and Plans center is now online and open to the Public. The following link will take you to the web page where you can link to the “TransGIS” data portal to graphically locate the highway, route No.(ODOT secret highway number), and Mile Point (ODOT official MP) for your area of interest.

Then go to the “Online Map Center” link and search for RW maps or Construction Plans using the information you got from the “TransGIS” to search, view and download PDF copies.

https://www.oregon.gov/ODOT/ETA/Pages/Tools.aspx