Show us why the public should always call a land surveyor

Where are you surveying?

GeoAlmanac for Land Surveyors Geography & App

Add Survey Term to Dictionary in Your Language

Land Surveyor's Dictionary is an ongoing community project to crowdsource surveying definitions and terms with examples for the next generation land surveyor to learn from. If you are a Land Surveyor, add a term to the Almanac with its definition and examples. Help improve the collective knowledge of the community by improving upon terms added by other surveyors by commenting with your examples and applications in your local surveying environment.
Land Surveyor

Construction Survey

Construction Survey

Purpose of Construction Surveys

Before construction activities are started, thorough planning and design is carried out. Before and throughout the construction period a surveyor assists in the work progress as necessary. As expected theĀ construction surveyorĀ guides the placement of the constructed items by providing points to the contractor that can be used to place them in the proper location. ThusĀ construction stakingĀ isĀ an important piece to the whole construction project.

So, What Is A Construction Survey?

The following is a brief introduction of what aĀ construction surveyĀ is. It is important that contractorsĀ building a project should understand at least what it is and its significance to these designed projects.

AĀ Construction SurveyĀ is basically a survey that presents locations and marks for construction activities; the process of executing, evaluation, and estimation prior to or during construction activities. It is also known as construction layout, or construction staking. Measurements are done for reference points which determine the location of the planned structure or improvements, vertical and horizontal positioning, dimensions, configuration, and to control the elevation of the new structures.

Purpose of A Construction Survey

The purpose of doing a construction survey is to maintain and establish the necessary vertical and horizontal control pointsĀ needed for the proper location of the construction items to be built. This survey may also provideĀ measurements which are needed determine quantitiesĀ asĀ documentation to corroborate the final payments made to the contractor.

Post construction, the survey is used to assess the final position and adequacy of the work, and to compute construction payments and be able to establish ā€œas builtā€ conditions. The ā€œAs Builtā€ construction survey is conducted as the construction work is finished to verify the positionĀ as specified on the designs and plans.

Tasks Involved in a Construction Survey

Research,Ā Reconnaissance,Ā Control, andĀ Mapping of the project areaĀ respectively are the tasks in this phase of an engineering project. This is a preliminary survey which is mainly the collection of data and establishing the survey control scheme that will be used during construction to ā€œcontrolā€ the position and elevation of each improvement. The result of this work is used for design, detailing of plans, and estimation of the project costs.

Gathering of the Design DataĀ which include Project plans in digital and hard copies, Control Data (Vertical and Horizontal), Alignments (Vertical and Horizontal), New Roadway DTM, R/W data (with maps, descriptions and obligations), and Specifications.

Field Work includes Recovery of existing vertical and horizontal control, Augmentation and replacement of control stations that are necessary to control the construction project, Performing random checks of the vertical and horizontal control network, Checking Vertical controls as necessary, comparison of resultant coordinates to the original, collection of confidence points to check and validate the terrain model, condition documentation, and performing utility relocation surveys as necessary.



Votes: 0
E-mail me when people leave their comments –
Land Surveyor

Mark Smith
Columbus Ohio Land Surveying
<a href=""></a>
(614) 591-8665

You need to be a member of Land Surveyors United - Survey Earth to add thoughts!

Join Land Surveyors United - Survey Earth

Latest Surveying Terms added to...

Comment Using Facebook