What is the function of "slope stakes" in a surveying project?

The function of slope stakes in a surveying project is primarily to mark changes in grade or vertical alignment on a construction site. These stakes are critical for indicating where the ground elevation changes, helping engineers and construction teams visualize and implement the designed contours of the land. By setting slope stakes at strategic intervals, it becomes easier to create and maintain proper drainage, ensure stable foundations, and guide the excavation or fill processes needed during construction.

Markers like slope stakes serve as crucial visual aids, enabling workers to adhere to design specifications and make necessary adjustments throughout the project. They play a vital role in site preparation and grading by allowing stakeholders to clearly understand areas that need to be leveled, amongst other adjustments.

While other options may pertain to surveying and construction, they do not directly align with the specific function of slope stakes. For instance, indicating property boundaries relates to property surveying, measuring elevation is part of leveling instruments, and providing reference points for GPS would involve different tools and markers. Therefore, marking slope changes directly aligns with the primary purpose of slope stakes on a project site.