Which of the following best describes a utility in highway construction?

In highway construction, a utility refers specifically to an entity that provides essential services such as electricity, water, gas, telecommunications, and sewer systems. These utilities are critical to the functioning of infrastructure and are often involved in the planning and execution of highway projects. Their services are necessary not only for the construction phase but also for ensuring that the completed highways support modern transportation needs and associated developments.

Utilities can affect construction timelines and costs, as their lines and services may need to be relocated or integrated into the new highway design. By understanding the role of utilities, construction teams can better plan and coordinate their activities to avoid disruptions.

The other options, while related to various aspects of construction and service provision, do not accurately define a utility in the context of highway construction. A contractor providing services pertains more to the project execution side, while facilities for construction storage and service providers for heavy machinery relate to on-site logistics rather than the utilities themselves.