Historical Plans Research

In order to serve you in a more efficient manner, we are completing a massive project to convert all of our historical plans into electronic format to provide easier access to plans through the web.   This project is nearing completion, so not all plans are available online yet.  Please be patient with us as this process continues.  As a result of this work, we now offer the ability to locate the plans on your own from the web or to submit an electronic request for assistance.

PLEASE NOTE: Until the conversion of all projects to electronic format is complete, please be aware that there will be projects that will appear within TREX below that will not be available in the Electronic Plans Search Application. This is only a temporary situation that should be synchronized over the next year as part of the ongoing work.

Transportation Explorer

TREX provides you with an easy to use map and search capability to locate project plans.  Though the search functions are a bit limited, the graphical interface makes it easy to use if you know the exact location for which you are looking.
» Search TREX

Electronic Plans Search Application

This application provides extended searching capabilities that allow you to enter any pieces of information you may know about the location of the project for which you are searching and it will return all projects meeting that criteria.  From there, you can narrow your search until you find the plans for which you are looking.
» Road Design Search

Plans File Room

If you have looked and not been able to locate the plans for which you are searching or if you would like for us to do the research for you, just send us an email containing any of the following information you may know, and we will be back in touch with you soon!

• Name
• Address
• Telephone
• Office/District (internal requests only)
• Date Requested
• Date Needed
• Project Information:
  • County
  • Route Number
  • Project Number
  • PI Number
  • Landmark Information (intersection, creek,  railroad, etc.)
  • Type plans needed (plan sheets, etc.)
  • Media desired (hard-copy plans, CD, etc.)
  • plans, size of plans required (Full, Half)
  • Number of sets