Outsource Topographic Survey Drafting Services
Topographic surveys are basically the first step in most civil engineering projects, it may be necessary to perform a topographic land survey to identify various items on the site and their elevations.
Recently, more and more surveying companies in the US try to Outsource Topographic Survey Drafting Services. The main reason is they have a hard time finding good full-time surveying CAD technicians with an affordable salary. Fortunately, they found a solution to solve the issue, that’s Outsource Topographic Survey Drafting Services.
How to Outsource Topographic Survey Drafting Services?
First, we need to discuss with your outsourcing provider about your standard, drawing template, point styles, label styles, survey codes. Below is an example of survey code. If you haven’t had any of them, don’t worry, we will compose one for you based on our 12-year experience in the field. We can do that for you at no cost if you want to work long-term with us.
Second, you would need to provide us necessary input information:
- Point file: It’s csv or txt file exported from the survey equipment. The point file format type describes how the point data is arranged in an ASCII (text) file. Below is an instant:
- Field notes: This is notes from the surveyors on the site. They can note anything regarding to the survey such as equipment type, control points, crew, point numbers with descriptions. They can also sketch the buildings or utilities in case they are complicated:
- Photos: Photos from the site could help us figure out the features in the site to present and callout them correctly. Sometimes, we can use Google Earth to view the site nearby streets. However, this way can’t be used for the site located far away from Streets or the street is private or restricted. In some cases, the data from Google Earth Street View is old of date. Therefore, photos from the site are still necessary for us to perform the topographic survey drawing.
After receiving all necessary information, we will use Civil 3D to import the point file, arrange the points in appropriate point style and label styles. We can perform the linework process to generate linework or draw them manually depending on how the point data is. We will check the survey info with as-built information on the local website, portlandmaps.com is an example.
Next, we will build the existing surface form a point group which just show ground points. The surface need to be modified so that it reflects the existing surface. We ever met a site on a hill with very steep slopes with many retaining wall. We had to assume additional points to make the surface makes sense. Building existing surface is one of most challenging tasks that isn’t for new bees to outsource Topographic Survey Drafting Services.
Next, we need to label the existing contours and finalize the topographic survey drawing.
Finally, the latest item in any process at EPO that is Quality Control. Actually, we have Quality Control during each activity but final check is critical. We often plot the Topographic Survey Map and double check in papaer to see if any mistakes missed.
Now, you understand how to outsource Topographic Survey Drafting Services.
Let’s contact us right now so that our dedicated team can support you on next projects.