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Sponsored by Lorman Education
Product ID: 406943EAU
Credit & Course Provided by:

The Hidden Dangers of Abandoned Utilities

OnDemand Webinar (88 minutes)

Subsurface construction is often fraught with danger and uncertainty, minimize the impact on your construction project.As consultants and engineers, we work to minimize that uncertainty and engineer solutions to make construction safer. However, in many cases, it is the unknown presence of abandoned utilities that can pose both a danger to workers and adversely affect the project schedule and costs. This topic helps the persons responsible for planning and designing construction to avoid or minimize the potential effect of abandoned utilities before starting construction and develop plans to address them during construction. The content will explain procedures that consultants and engineers can implement during planning stages and pre-design investigations to identify potential abandoned utilities. Identifying the utilities and establishing procedures for addressing them during construction during the design phase is a critical factor in preventing construction delays and potentially fatal accidents. This topic is critical for consultants and engineers so they can ensure their employees' safety and minimize the impact of unknown utilities and subsurface structures on construction.


Matthew J. O'Neil, P.E., GEI Consultants, Inc. Gary A. Rozmus, P.E., GEI Consultants, Inc.


Before You Dig

• Utility Clearance Requirements and Procedures

• Historic Document Reviews

• Geophysical Surveys, Hand Clearing, Soft Digging Options

While You Dig

• Abandoned Utility Identification

• Methods of Abandonment

• Job Planning for Abandoned Utilities

Practical Examples of Abandoned Utilities

• Improperly Abandoned Utility Lines

• Historic UST/LUSTs and Structures

• Historic Industrial Process Piping