.HUH File Extension
File TypeHydroCAD Unit Hydrograph Definitions File
What is a HUH file?
Definitions file used by HydroCAD, a CAD water drainage solutions program; contains unit hydrograph definitions that predict water runoff from short bursts of rainfall; stored in ASCII text format; represents one of several files in an overall HydroCAD project.
HUH files are forward compatible with different versions of HydroCAD.