MWH Soft, Inc., US-based global provider of water resources applications software, announced the addition of the Colorado Urban Hydrograph Procedure (CUHP) and modeling of rainfall losses accounting for antecedent conditions to its industry-leading geospatial sanitary and storm sewer analysis software, InfoSewer ProTM. Built atop ArcGIS, InfoSewer Pro is an integrated ArcGIS-based application for simulating, analyzing, modeling, designing and managing stormwater runoff, sanitary wastewater and combined sewer systems.
Developed and supported by industry experts, MWH Soft geospatial modeling technology is used worldwide by municipal engineers, consultants, and planners to create detailed, accurate models of infrastructure systems. These models enable users to evaluate the effect of new developments, zoning changes, and other additional loads on system flows. They also help pinpoint current and future problem areas; determine how to best restore capacity lost to infiltration and inflow with the least rehabilitation; predict unwanted overflow events and backups; develop sound remedial alternatives for eliminating CSO, SSO and stormwater problems; meet environmental regulations; and improve community relations.
Originally composed based on extensive rainfall and runoff data observations, the Colorado Urban Hydrograph Procedure has proven to be one of the most reliable and practical methods of driving synthetic unit hydrographs for urban watersheds. During storm events, some of the rainfall is lost in the form of infiltration and depression/retention storage depending on soil type, land use, and topographic conditions of the modeled catchment. With this new enhancement, InfoSewer Pro can now directly determine excess (effective) rainfall by modeling rainfall losses accounting for watershed characteristics and antecedent conditions.
The model applies advanced techniques that can simulate not only wetting behavior of the soil, but also the regeneration of infiltration capacities during dry periods, an essential component of continuous rainfall-runoff simulations.