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Federal Highway Administration > Publications > Focus > October 2010 > Advancing Bridge Safety and Serviceability: Scanning the Globe for Success
Publication Number: FHWA-HRT-11-007
Date: October 2010

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Into the Deep: New Training Takes Underwater Bridge Repairs to the Next Level

Take underwater bridge inspection and repair to the next level with the new course, Underwater Bridge Repair, Rehabilitation, and Countermeasures (Course No. FHWA-NHI-130091A). Developed by the Federal Highway Administration's (FHWA) National Highway Institute (NHI), the 2-day course trains design engineers, construction inspectors, resident engineers, and inspection divers in techniques for selecting and executing repairs to underwater bridge elements. The course may also be useful to contract administrators responsible for bridge repair or rehabilitation projects. It can be presented as a follow-on to NHI's Underwater Bridge Inspection course (Course No. FHWA-NHI-130091).

"The primary goal of the new course is to enable design engineers to select, design, and specify appropriate and durable repairs to below water bridge elements. The course is also intended to train staff in effective construction inspection of below water repairs," says Gary Moss of FHWA's Office of Bridge Technology.

Topics covered by the course include:

  • How to determine if below water repairs require a cofferdam.
  • Typical environmental restraints to performing repairs below water.
  • Three methods of achieving a dry construction site within a body of water.
  • Three attributes of good concrete repair mix designs.
  • The differences between flexible and rigid concrete forming systems.
  • Underwater concrete placement techniques.
  • Installation procedures for pile jackets.
  • Three methods to repair pier scour.
  • The benefits of cathodic protection for bridge substructures.
  • Four stages of underwater repair activities for underwater construction inspection.

The course fee is $420 per participant, with a minimum of 20 attendees and a maximum of 30. Participants should have a working knowledge of bridge terminology, construction materials, and traditional underwater bridge repair techniques.

To schedule the course in your State, visit and select "Host a Course." For more information on the course content, contact Gary Moss at FHWA, 202-366-4654 (email:


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Updated: 02/20/2015

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