www.PDHonline.com - Your Gateway to Lifelong Learning   |   Email: PDHonline@Gmail.com   
PDH Online Course Description PDH Units/
Learning Units (Hours)

Buy Now

View Course

View or Take Quiz


Tunnel Basics

Through mountains, under rivers, beneath cities... tunnels are no boring story! In this course, we will take you underground to explore the history and ingenuity behind some of the world's tunneling marvels. Besides the challenges of tunneling through various types of soil/rock, we will discuss in detail the three steps to a tunnel's success: excavation, support and lining. In addition, we will address how to reduce fire hazards during tunnel operations. Course highlights include the Hoosac Tunnel, London Underground, Holland Tunnel, Channel Tunnel (Chunnel), Marmaray Tunnel, and Gotthard Base Tunnel. This course includes a multiple-choice quiz at the end, which is designed to enhance the understanding of course materials.

Note: This course requires users to pay first before viewing the course content.

View Course Content

NY PE & PLS: You must choose courses that are technical in nature or related to matters of laws and ethics contributing to the health and welfare of the public. NY Board does not accept courses related to office management, risk management, leadership, marketing, accounting, financial planning, real estate, and basic CAD. Specific course topics that are on the borderline and are not acceptable by the NY Board have been noted under the course description on our website.

AIA Members: You must take the courses listed under the category "AIA/CES Registered Courses" if you want us to report your Learning Units (LUs) to AIA/CES. If you take courses not registered with AIA/CES, you need to report the earned Learning Units (not qualified for HSW credits) using Self Report Form provided by AIA/CES.