The pipe to be installed is to be placed at a gradient of 2.39 percent. Obviously, there is a drop here of 0.86 foot. From the invert in at the manhole, the new pipe will extend 230 horizontal feet to the invert at the center line of the curb inlet. The invert elevation at any intermediate point along the line can be obtained by similar computation. The plan shown in figure 10-3 is greatly simplified for the sake of clearness it contains the bare minimum of data required for locating the new line.
Plans used in actual practice usually contain more information.
The plan and profile constitute the paper location of the line. A final-location survey party runs the line in the field. Integrated Publishing's Official Web Page Click here for a current index of everything on this web site. All Rights Reserved.