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Inspection of Highway and Rail Transit Tunnels

Jeffrey Havelin, PE

This (10-hour) course provides specific information and procedures for the inspection of both highway and rail transit tunnels. Although several components are similar in both types of tunnels, a few elements are specific to either highway or rail transit tunnels and are therefore defined accordingly. It is commonly understood that 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.

The following paragraphs explain the specific subjects covered along with procedural recommendations that are contained in the FTA/FHWA 2005-Highway and Rail Transit Tunnel Inspection Manual, which is the basis of this course.

This course addresses inspection procedures for the functional aspect of the tunnel, focusing on the civil/structural, mechanical, and electrical components. The also provides brief guidance on other systems/appurtenances, such as track, traction power, signals, and communications, which comprise the operational aspects of a rail transit tunnel. This brief guidance is only meant to provide general knowledge and not in-depth inspection criteria for such systems/appurtenances.

Although this course is produced for a hands-on, non-destructive evaluation of the inside face of the tunnel structure, other state-of-the-art, non-destructive testing methods may be used in areas that require a more in-depth structural evaluation. These methods may include mechanical oscillation techniques such as sonic or ultrasonic measurements (more commonly referred to as Impact-Echo), electronic techniques such as georadar, and optical techniques such as infrared thermography and multispectral analysis.

This course is based entirely on the 2005-Highway and Rail Transit Tunnel Inspection Manual - Publication (FHWA-IF-05-002). This course includes a multiple-choice quiz at the end, which is designed to enhance the understanding of course materials. You will be quizzed on the attached document in its entirety.

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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.