Survey control durability: Are monuments that mark surveying control points generally intended to be temporary rather than permanent?

Difficulty: Easy

Correct Answer: Incorrect

Explanation:


Introduction / Context:
Survey monuments (benchmarks, boundary markers, control points) provide the physical basis for coordinate and elevation control across projects and jurisdictions. Their permanence underpins legal boundaries and engineering works.



Given Data / Assumptions:

  • Monuments may be set as concrete posts, bronze disks, rebar with caps, or other durable markers.
  • They reference datums and coordinate systems used for mapping and construction.
  • Loss or movement of a monument can cause costly boundary disputes or construction errors.


Concept / Approach:
Because control must be revisited over years or decades, monuments are designed to be stable and long-lasting. Agencies maintain permanent networks (e.g., geodetic control, leveling benchmarks). Temporary stakes are used during construction, but these are not monuments in the formal sense.



Step-by-Step Solution:

Differentiate permanent monuments (legal/control) from temporary stakes or hubs used for layout.Note materials and setting methods that ensure durability and positional stability.Conclude that formal monuments are intended to be permanent, making the statement false.Document monument metadata (coordinates, datum, description) for future recovery.


Verification / Alternative check:
Consult cadastral standards: monuments are explicitly specified to be permanent and recoverable with detailed ties and descriptions.



Why Other Options Are Wrong:

Correct: Would contradict legal and engineering practice.Only for highway benchmarks / soil dependent: Permanence is a design intent, independent of project type; installation accounts for soil conditions.


Common Pitfalls:
Confusing layout stakes with monuments; failing to reference or protect monuments during construction.


Final Answer:
Incorrect

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