Contractors

"Accuracy and precision is essential for the success of
any construction project."

During the planning and design phase:

• Boundary surveys: To establish legal property lines and identify any easements or encroachments.

• Topographic surveys: To map the existing terrain, including elevations, contours, and features, which is crucial for site design and planning.

• Utility surveys: To locate and map existing underground utilities, such as water, sewer, gas, and electric lines, to avoid damage during construction.

• Environmental surveys: To identify and map wetlands, floodplains, and other environmentally sensitive areas that may affect construction.

• Thorough Understanding of Drawings, Specifications, and BIM model: Before starting any layout work, thoroughly review and understand all project drawings, models, and specifications. Clarify any ambiguities or discrepancies with the design team.

• Establish Control Points: Establish a network of accurately surveyed control points as a reference framework for all layout work. These primary control points should be set by a licensed Professional Land Surveyor, tied to a known coordinate system, set in coordinated locations to last through project completion, and clearly marked and protected.

• Develop a Layout Plan: Create a detailed layout plan that outlines the sequence of layout activities, as-built requirements, the methods to be used, and the required accuracy and tolerance. This plan should consider the project schedule and potential interferences.

• Coordinate with Other Trades: Coordinate layout activities with other trades to avoid conflicts and ensure smooth workflow. Communicate clearly about layout marks and their significance.

• Safety: Prioritize safety in all layout operations. Use appropriate personal protective equipment and follow safe work practices. Be aware of potential hazards on the construction site.

During the construction phase:

• Construction staking: To mark the location of proposed structures, foundations, and other elements on the ground, ensuring accurate construction.

• Layout surveys: To establish precise horizontal and vertical control points for construction activities, such as setting out building lines, columns, and grades.

• Pre-pour QA/QC: Identify any deviations from the design plans.

• Aerial surveys: To capture large-scale topographic data and existing conditions, which can be more efficient and more accurate than traditional ground surveys. Inspect hard to reach areas, such as roofs, excavations, and facades, without putting your teams at risk. Combined with BIM and CIM models, contractors can easily track progress and improve efficiency. 

• 3D laser scanning: To create highly detailed 3D models of existing structures or sites, which can be used for renovation projects, or complex construction existing data collection. QA/QC reporting, floor flatness and floor level, wall verticality, volumetric quantity. 

• Hydrographic surveys: To map underwater features, such as rivers, lakes, and coastlines, for projects involving bridges, or docks.

Post construction phase:

• As-built surveys: To document the final location of constructed elements, including utilities, roads, and buildings, for record-keeping and future reference.

• Finial Survey

• Foundation Survey (typically required by lender)

• ALTA/NSPS Land Title Survey