GPS System created in the 1970s through satisfactory precision, becomes a convenient measurement tool. Use of GPS instruments gives a benefit in the form of comfort work and shorten the time of surveyor work. Thanks to satellite, in con-venient terrain condition it is no longer needed the establishment of new control points and the use of tacheometer. In this publication an example of the use RTK technique in determination of damages cansed by flood was presented. Object test bench is destroyed by flood in May of 2010, ring road of Ropczyce city. The inventory of flood damage in this case have been used precision instruments GPS Leica, GPS 1200 and GNSS Leica SmartRover 1200 GS09. The methodology of work with inventory adjustments was to use two different ways, depending on the nature of the loss, described in detail in section 3. As a result of the measurements obtained coordinates for spatial point, de-termining the location and shape of the losses in revetments and scarps. On their basis, using C-Geo calculated the volume of earth-masses of each of the losses. The reasoning followed during this calculation was made conditional on the type and nature of the loss. This problem is described ...
