Construction surveying, also referred to as engineering surveying, deals with the “setting out” or “staking out” of a project. It is crucial to carry out construction surveying in an accurate manner.
This guide discusses what construction surveying is and what the process looks like, the history of construction surveying and what equipment is used during surveying in construction.
What is construction surveying?
Construction surveying is used to set out reference points on a construction site with markers that tell the contractors where to start building the new structure and confirm the site is safe for work to begin. Usually, a coordinate system, selected specifically for the particular project, is relied upon to get this correct and ensure the markers are in the correct place.
How long has construction surveying been around for?
Construction surveying is one of the oldest disciplines and is visible throughout the construction of iconic landmarks in history. For example, the Great Pyramid of Giza, with its sloping sides and alignment with the horizon, affirm the Egyptians’ extraordinary command of surveying. In the UK, Stonehenge stands at an angle that researchers suggest could only have been achieved with the use of prehistoric surveying techniques.
There have been some technological advancements in surveying, like the introduction of drones and LiDAR technology, but land surveyors continue to use similar geometric measuring methods used historically. These advancements mean surveyors can rely on newer forms of technology to ensure absolute precise measurements, but reliance on basic technology, like spirit levels and marking areas out with pegs and string to complete construction surveys, is still undertaken in surveying in construction.
What is the construction survey process?
There are multiple steps involved in completing a successful building survey:
- Survey existing conditions of the work site: looking at topography, existing infrastructure and buildings, and any underground infrastructure, like diameters of sewers, or the location of water and gas pipes, is the first step in the process.
- Stake out corners: this step involves physically staking out the corners of each plot, work area, services and construction cabin locations, as well as the markers and reference points used to guide the build during the project.
- Verification: ensuring the location of steelwork and blockwork is verified and implementing corrective instructions should any problems be identified is a crucial step.
- Levelling: on each floor, horizontal control must be provided.
- ‘As-Built’ survey: when the construction process is complete, the construction surveyor will complete a survey to verify that specifications from the original plan have been met.
What equipment is used in construction surveying?
Like land surveying, a construction survey will involve looking at the natural habitat before any construction can begin. Because of this, a construction surveyor will use equipment including laser levels, total stations, and GPS.
At Lucion, our team of specialist construction surveyors are available to answer any questions about your proposed project. Contact us on 0345 5040 303 or online to learn more about your options.
