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Utilities Business Review | Thursday, March 03, 2022
It is essential to locate underground utilities to protect underground utilities and coordinate these with transportation projects.
A reliable way of finding underground utilities is crucial for protecting facilities and coordinating them with transportation projects. Dig-in strikes have increased in the United States due to the proliferation of underground facilities, resulting in the loss of services, delays in project delivery, injuries, and even deaths. According to the Federal Highway Administration, many transportation projects delay due to utility-related issues. These delays are often an inability to locate utilities or inaccurate information about their locations.
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The following measures mitigate challenges faced by utility locators.
The one-call system: To prevent underground utilities from being damaged during construction work, the one-call system was created. This system coordinates efforts to notify utilities before excavation to improve communication between utility owners and excavators. Under the construction of transportation projects, the system is important in minimizing underground utility damage.
Utility locators often need help locating facilities within the specified timeframe and with the desired accuracy
Despite its benefits for promoting damage prevention, the one-call system has some limitations. Utility owners must mark their utilities' locations horizontally (x-y). In addition, the law only requires utility owners to mark their facilities on the ground surface before construction and excavation begin, which often leaves it too late for design or contractor bidding. The lack of depth and elevation information provided by locating marks contributes to the damage to underground utilities. Thus, the one-call process has expanded to include a design ticket in many states.
Private locating services and SUE: Utility operators often hire subcontractors to locate and mark their underground facilities when necessary. Additional locating services supplement the information gathered through one-call systems. Nevertheless, these contracted locators typically provide these services for several companies, must deal with large ticket volumes, and therefore need more time to locate these facilities. A single subcontractor often locates and marks all utilities within an excavation area. Utility locators often need help locating facilities within the specified timeframe and with the desired accuracy, resulting in late, and inaccurate locates. Labor shortages, inadequate training, and insufficient practices by excavators, such as inaccurate ticket information and incorrect ticket type, also contribute to late and inaccurate locates.
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