How to check the topography and structure elevations (USA)

This article will show you how to interpret the topography to work out the slope of the property and check the elevations on each corner of the design.

The contours that are found in canibuild are generated using LiDAR technology - (Light Detection and Ranging) .  

 

Toggle Contours Icon - Turns on the range of coloured contour/topography lines that show the slope of the property.
Turns on the structure elevations - Measurements on each corner of the design that show the levels.

How to check the slope of the property?

  • Select the Toggle Contours icon on the right hand tool bar.

  • Each contour line will have a number or RL on it. This is the height from sea level.
  • The colours make it easy to quickly interpret the change in elevation across the site. 

Red is the Highest Point on the property

Blue is the lowest point on the property

Solid lines show a change in elevation of 5 ft

Dotted lines show a change in elevation of 1ft

 

 

When the contours are turned on, a notification will appear to display the validity of the contours. These can be:

  • Pre-existing contours, high confidence.
  • Pre-existing contours, low confidence.
  • Proposed contours (Proposed by the developer for a new subdivision).
  • Contours unavailable.

 

How to understand the structure elevations

  • Left click on the design.
  • Select the Structure Elevations icon from the pop up menu.

 

The structure elevations display change in height on all 4 corners of the structure.

  • The Green point is  always A - This is the highest level of the design.
  • Each of the Blue points show the decrease in height from point A.

 

 

  •  Clicking on the letters will reveal extra information. 
    • NGL - Natural Ground Level
    • FFL - Finish Floor Level

    The 0 value in point A can be edited. By adding 1 it would update the FFL to include the foundations.