What is a Topographic Survey and when is it needed?

Topographic Surveys are used to identify and map the contours of the ground and existing features on the surface of the earth or slightly above or below the earth's surface (i.e. trees, buildings, streets, walkways, manholes, utility poles, retaining walls, etc.).  If the purpose of the survey is to serve as a base map for the design of a residence or building of some type, or design a road or driveway, it may be necessary to show perimeter boundary lines and the lines of easements on or crossing the property being surveyed, in order for a designer to accurately show zoning and other agency required setbacks.


Topographic Surveys require "bench marks" to which ground contours are related, information regarding surface and underground utilities, determination of required setbacks, etc.

From Weblog

April 06, 2016

There was a flurry of activity for Adobe Associates, Inc.'s wastewater department this last month. It was the annual weather watch and wait for rainfall numbers to open the groundwater wet weather test opportunities for our Sonoma County wastewater clients. We worked hard over a period of time through January and February with some success but only test opportunities for our clients in Santa Rosa, Sebastopol, and Guerneville were able to occur based on the rainfall numbers in those areas. 

The County of Sonoma Permit and... Full post »

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