The Arizona Department of Transportation (ADOT) is charged with the responsibility of constructing and maintaining Arizona’s highways. The purpose of this guide is to consolidate the guidelines and procedures adopted by ADOT, Intermodal Division, for the accommodation of utilities on highway rights-of-way. All utility installations above or below ground are regulated by ADOT through the establishment and enforcement of these guidelines contained herein. Your cooperation in compliance with these standards is requested.
Many of ADOT's design consultants are being asked to coordinate utility, design and construction issues for highway projects. This guide is intended to provide the consultant designer with helpful hints and advice on how to coordinate utilities on ADOT projects and ultimately write a Utility Clearance Letter.