Division Engineer Letters (DE Letters) detail changes to the state maintained road network approved by the Board of Transportation. The letters consist of a cover letter, road system changes page, and a color coded map illustrating the changes.
DE Letters can be filtered by division, county, month, year, and/or the product which generated the DE Letter. Click the document Item number to download the Division Engineer's letter.
This online DE Letter search engine contains all DE Letters from 2003 through present and some DE Letters prior to 2003. If you are looking for a DE Letter dated prior to 2003, please contact the Road Inventory group in the Operations Program Management Unit.
DE Letters updated this month (excluding Petitions and Municipal Agreements)
Frequently Asked Questions about GIS Road Centerline data
Click here to Search for DE Letters by Street Name.
