The survey measurements made prior to or while construction is in progress to control
elevation, horizontal position, dimensions and configuration, and , following construction,
to obtain essential dimensions for computing construction pay quantities and establishing
"as built" conditions. Construction Surveying requires the expert skill of a licensed
practitioner well versed in maintaining accuracy, precision, efficiency, measuring
and computing values pertaining to such surveys. A construction survey may follow
or be made in lieu of a locative survey.