If a reference stake is 20.2' from the Hub and fill is to be started at a distance of 12.4' from the Hub, how are these distances measured?

The distances in this scenario are regarding the placement and reference points within a construction site, particularly related to the positioning of fill material in relation to the Hub and the reference stake. When measuring distances like these, both distances are typically understood and applied in a horizontal Plane.

Measuring these distances horizontally is crucial because it allows for accurate positioning and an understanding of the layout on-site in relationship to the existing structures. Vertical measurements would not be appropriate in this context since they do not provide relevant information about the spatial relationship of the fill to the hub and reference stake along the ground level.

Diagonal measurements would imply a relationship that isn't being assessed here, as both referenced points are clearly on the same plane, and independently measuring could lead to misinterpretation of their connections within the project's layout. Hence, understanding that these measurements are horizontal ensures precision in planning and execution in the field.