Topographic Surveys 101: A Beginner's Guide

What is a Topographic Survey?
https://retipster.com/terms/topograph...

Topographic surveys are trigonometrically calculated, map-based representations of the earth. The calculations are done by a surveyor to give an approximation of the earth's surface. These surveys provide basic information for land planning, development, and infrastructure construction.

The surveyor calculates the elevations in relation to a selected datum or datums (mean sea level) and their position on the earth's surface. The topographic survey is a three-dimensional graphical representation of the features and elevations of a parcel of land.

Learn more about land surveys: https://retipster.com/terms/landsurvey/

The surveyor from this video: https://roosien-assoc.com/

0:00 - Intro
0:06 - What is a topographical survey?
0:33 - What are the measurements taken in a topo survey?
0:47 - What tools does a surveyor use for a topo survey?
1:21 - How accurate and reliable is a topo survey?
2:02 - How reliable is Google Earth for finding ground elevations?
2:36 - How many points of measurement are taken on a topo survey?
2:57 - How long does it take to complete a topo survey?
3:04 - What affects the cost of a topo survey?
3:35 - How does a normal topo survey compare to an unmanned drone LiDAR survey?
3:53 - Is a drone LiDAR survey less expensive than a traditional topographical survey?
4:03 - What is the purpose of a topo survey?
4:22 - Do people ever start building without a topo survey?
5:02 - How steep is too steep to build?
5:12 - What does a topo survey NOT tell you?

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