Inspection of Highway and Rail Transit Tunnels

Training overview
Professional Course
Self-paced Online
6 hours
From 170 USD

Start dates
170 USD
Start anytime!
engineer in tunnel

Course description

In Inspection of Highway and Rail Transit Tunnels , you'll learn ...

  • Tunnel types, shapes, finishes and construction methods
  • Tunnel inspector qualifications, tools/equipment, responsibilities, means of access and safety practices
  • Inspection frequency and what to look for when inspecting civil/structural, mechanical and electrical elements of a tunnel
  • Safety-critical repairs for civil/structural elements


Credit: 6 PDH

Length: 93 pages

Numerous tunnels in the United States are more than 50 years old and are beginning to show signs of considerable deterioration, especially due to water infiltration. This course provides information and procedures for the inspection of both highway and rail transit tunnels.

The main focus of the course is on the civil/structural, mechanical, and electrical components, as well as ventilation and lighting. However, brief guidance is also provided for other systems/appurtenances specific to rail transit tunnels, including tracks, traction power, signals, and communications. This brief guidance is only meant to provide general knowledge and not in-depth inspection criteria for such systems/appurtenances.

The course also covers various tunnel shapes and liner types, the two main invert types, the various construction methods used to construct a tunnel, and the different finishes that typically exist in highway tunnels.

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Who should attend?

Certificate of Completion

You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 55 questions. PDH credits are not awarded until the course is completed and quiz is passed.

Training content

This course teaches the following specific knowledge and skills:

  • Circular Highway Tunnel Shape
  • Double Box Highway Tunnel Shape
  • Horseshoe Highway Tunnel Shape
  • Oval/Egg Highway Tunnel Shape
  • Circular Rail Transit Tunnel Shape
  • Double Box Rail Transit Tunnel Shape
  • Single Box Rail Transit Tunnel Shape
  • Horseshoe Rail Transit Tunnel Shape
  • Oval Rail Transit Tunnel Shape
  • Circular Tunnel Invert Type
  • Single Box Tunnel Invert Type
  • Horseshoe Tunnel Invert Type
  • Natural Ventilation
  • Longitudinal Ventilation
  • Semi-Transverse Ventilation
  • Full-Transverse Ventilation
  • Tunnel Inspection Layout Plan
  • Circular Tunnel Label System Designations
  • Rectangular Tunnel Label System Designations
  • Horseshoe Tunnel Label System Designations
  • Inspection of Civil/Structural Elements
  • Inspection of Mechanical Systems
  • Inspection of Electrical Systems
  • Inspection of Other Systems/Appurtenances
  • Inspection of Track Elements
  • Inspection of Power Systems (Third Rail/Catenary)
  • Inspection of Signal/Communication Systems
  • Lighting Systems
  • Mechanical TBM


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7915 FM 1960 West, Suite 130
77070 Houston Texas

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