Patent ID: 7146295

Claim:
A computer-readable memory having a computer program for use in drainage systems, comprising: a digital storage device; a computer program stored on said digital storage device, said program being operable upon execution by a computer to present a user with a graphical user interface that enables the user to input into the computer dimensional and structural information concerning the drainage system; wherein said program is operable to access a set of predefined drainage system components and, using the inputted dimensional and structural information, said program is operable to determine different configurations of the predefined components that represent a structure contained in the drainage system; wherein said program is further operable to select at least one of the configurations based on one or more criteria and is operable to present the selected configuration(s) to the user via the graphical user interface; and wherein the different configurations of the predefined components comprise different stacking configurations of at least one manhole or catch basin in the drainage system, and wherein said program is operable to determine the different stacking configurations using data relating to the predefined components.