Since its introduction in 1986, HydroCAD has offered a dramatic alternative to the tedium and drudgery of traditional hydrology software such as TR-20 and TR-55. Although originally developed to help engineers manage large, complex projects, HydroCAD`s quick, intuitive operation makes it ideal for projects of any size. In fact, HydroCAD`s popularity ranges from consulting engineers designing single ponds, to large engineering firms modeling thousands of acres, to municipal and regional agencies responsible for entire watersheds.

Company details

P.O. Box 477 , Chocorua , NH 03817 USA

Locations Served

Business Type:
Software vendor
Industry Type:
Water and Wastewater - Water Monitoring and Testing
Market Focus:
Globally (various continents)
Year Founded:


HydroCAD is great!! Simple and easy to understand right out of the box. This program is very intuitive and stable unlike other products...' more comments

'...this program has the best cost to benefit ratio. You can't go wrong with HydroCAD. User friendly and good customer support.' compare products

HydroCAD is a Computer Aided Design tool used by Civil Engineers for modeling stormwater runoff. HydroCAD provides a wide range of commonly used drainage calculations including:

  • SCS, NRCS, SBUH runoff hydrology
  • Rational Method with automatic IDF curves
  • Use local rainfall or the predefined rainfall library
  • Unlimited hydrograph points
  • Hydrograph routing through ponds & reaches
  • Coupled ponds with automatic tailwater
  • Automatic hydraulics and culvert calculations
  • Advanced flow simulations including pumps and float valves
  • Progressive dam breach simulations
  • Automatic pond storage calculations, including embedded storage chambers
  • Automatic layout and modeling of underground storage systems
  • Land-use analysis and pollutant loading calculations
  • Built-in CAD watershed import
  • Easy management and reporting of multiple rainfall events
  • Runs on any Windows PC - No other CAD software required

HydroCAD is ideal for studies using the TR-20, TR-55, or SBUH methods. (Please visit the Hydrology Library for background information.) HydroCAD provides a wide range of standard H&H techniques in an easy-to-use graphical form, managed by the on-screen routing diagram we pioneered in 1986.