This is a method to calculate the hydrograph of a flood in its transit for the bed, taking into account the lamination effect. Two parameters are considered: one that is related with the storage capacity of the bed in each section, or adimentional (X) nature; and another one related with the time that the flood wave takes to move through the considered section, as “time” units (k).

Cunge combined hydraulic methods with the simplicity of the Muskingum method. Here he calculates the constants X and k used in the Muskingum method through hydraulic parameters and geometrics of the bed in order to calculate the transit.

It is a procedure to calculate the hydrograph of the outflow volume from a dam, with an area of horizontal water, given its intake hydrograph and its characteristics for outflow volume storage.