Civil Drafting with AutoCAD Project-Civil Drafting with AutoCAD Project

[nelsonm]

Hi, I'm a student from Pen Foster College and I have a trouble with this Project. I would like to get some help.

For this part: Drafting the Existing Site Plan (Sheet 1):

"Now, you need to figure out where the contour intervals cross the grid lines between each spot elevation. Create contours at 10′ intervals for just the 100′–180′ contour lines. You can estimate where a contour line intersects a grid line using interpolation. You can interpolate the position of the contours by estimating between the known locations of the spot elevations. You may find it quicker to set up a spreadsheet to help you calculate all the locations." Can someone guide me to get started with this part? please

3. Civil Engineering Drafting.pdf