Which action would enable control of the top elevations of structures within a pipe network?

Which action would enable control of the top elevations of structures within a pipe network?

• A. Creating a new surface
• B. Moving structures manually
• C. Associating a surface to the network
• D. Changing pipe diameter

Answer: (C)

Linking the pipe network to a surface ties the structure elevations to the ground model. When a surface is associated with the network, the top elevations of structures (like manholes and junctions) can be constrained to match the surface elevation at each structure’s location or sit on the surface. This makes structure tops follow the terrain and update automatically if the surface changes, ensuring consistency with the ground profile. Creating a new surface by itself doesn’t apply the elevations to the network, moving structures manually bypasses the automatic control, and changing pipe diameter affects hydraulics rather than where the structures sit vertically.

Linking the pipe network to a surface ties the structure elevations to the ground model. When a surface is associated with the network, the top elevations of structures (like manholes and junctions) can be constrained to match the surface elevation at each structure’s location or sit on the surface. This makes structure tops follow the terrain and update automatically if the surface changes, ensuring consistency with the ground profile. Creating a new surface by itself doesn’t apply the elevations to the network, moving structures manually bypasses the automatic control, and changing pipe diameter affects hydraulics rather than where the structures sit vertically.