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An Introduction to Utilidors, Power Distribution and Communication Systems in Cold Regions

COURSE NO: E01-003
An Introduction to Utilidors, Power Distribution and Communication Systems in Cold Regions
Course Highlights

This online engineering PDH course provides introductory information about special design considerations, equipment, materials and construction methods for mechanical and electrical utility systems, including water, wastewater, heating, power and communication utilities in arctic and subarctic regions.


A utilidor is a conduit that contains multiple utility systems such as water, sewerage, fuel oil, gas, electrical power, telephone, and central heating in various combinations or in some cases all together.  They have been used at a number of installations and communities in the North American Arctic.


Utilidors are very expensive and can only be justified for special situations. In most cases individually insulated pipes in a common trench or on a common pile will be more economical.  Utilidors have been constructed above and below ground, and range in size from a simple insulated conduit to a walk-through passageway.  New designs typically incorporate lighter construction materials than the reinforced concrete used previously at many installations.


This 1 PDH online course is intended for civil, environmental, mechanical and electrical engineers and other design and construction professionals wanting to learn about utility distribution systems, facilities and equipment in arctic and subarctic regions.

Learning Objectives

This PE continuing education course is intended to provide you with the following specific knowledge and skills:

  • Learning about pile supported and in-ground utilidors
  • Learning how hot water and steam lines in utilidors affect other utility lines and cables
  • Learning about cross-connection control when sewage lines are contained in utilidors
  • Learning how to provide an effective electrical grounding system in permafrost conditions
  • Learning how to design aerial power and communication cable towers in permafrost conditions
  • Learning about remedial  measures to protect aerial cables against ice buildup
  • Learning how to prevent bonding between frozen soil and aerial power and communication cable poles
Course Document

In this professional engineering CEU course, you need to review the course document titled, "An Introduction to Utilidors, Power Distribution and Control Systems in Cold Regions".

To view, print and study the course document, please click on the following link(s):
An Introduction to Utilidors, Power Distribution and Communication Systems in Cold Regions (575 KB)
Course Quiz
Once you complete your course review, you need to take a multiple-choice quiz consisting of twelve (12) questions to earn 1 PDH credit. The quiz will be based on the entire document.


The minimum passing score is 70%. There is no time limit on the quiz, and you can take it multiple times until you pass at no additional cost.
Certificate of Completion

Upon successful completion of the quiz, print your Certificate of Completion instantly. (Note: if you are paying by check or money order, you will be able to print it after we receive your payment.) For your convenience, we will also email it to you. Please note that you can log in to your account at any time to access and print your Certificate of Completion.

To buy the course and take the quiz, please click on: