Who is responsible for placing and checking the string line?

The responsibility for placing and checking the string line typically falls to the contractor. This task is essential in ensuring that work is done according to the plans and specifications, as the string line helps establish the correct alignment and grade for roadway construction. The contractor oversees the construction site and is directly involved in the execution of tasks, making them responsible for operational aspects, including the placement of the string line.

The contractor's role encompasses not only the physical construction but also the management of resources and adherence to quality standards. By accurately placing and checking the string line, the contractor ensures that the project maintains the required standards for alignment and dimensions, which is critical for the overall success of the construction efforts.

Other roles, such as the technician, engineer, or inspector, may provide oversight or guidance, but it is the contractor who is tasked with the hands-on responsibility of setting up the string line. Thus, identifying the contractor as responsible aligns well with the practical realities of a construction site, emphasizing their leading role in the actual implementation of the project’s plans.