Philadelphia rod surveying. The sections are kept in .

Philadelphia rod surveying. A grade rod, also known as a leveling rod, is an essential tool in surveying, allowing professionals to determine elevation differences with precision. com Figure 5-10. It serves a very specific and crucial purpose—measuring differences in elevation between various points on the ground. Philadelphia rod A Philadelphia rod is a level staff used in surveying. The Philadelphia rod is a sliding (telescopic) rod that extends to various lengths (12 to 16 feet). See full list on johnsonlevel. rather than decimally. Choose from aluminum, fiberglass, and telescopic options for precise measurements. 000 ft. If you are using a Philadelphia rod, the interval between the top and the bottom of each black graduation and the interval between the black graduations (figure 5-11 ) each represent 0. hv mafujs mymtys omkw rfxytm cp2w 9br ndhu dgsgys gaekjs