New extension heralds significant leaps in geocentric stormwater modeling and ultimate flexibility for power InfoSWMM users.

MWH Soft, a leading global provider of environmental and water resources applications software in Broomfield, Colorado, announced the worldwide availability of InfoSWMM Suite for power ArcGIS (ESRI, Redlands, CA) users. The new state-of-the-art extension marks the most significant milestone to date in the evolution of the company's flagship urban drainage modeling product, the leading geocentric software solution for the effective management and operation of stormwater and wastewater collection systems. InfoSWMM equips wastewater utilities with extended power and flexibility in leveraging their mapping and GIS data to support the modeling of runoff quantity and quality from subcatchments allowing them to automatically build accurate, representative models of their sewer systems with unsurpassed speed and accuracy. With this new release, the company further strengthens its market leadership by delivering even more sophisticated, fully automated geocentric modeling solutions.

By delivering a new way to integrate geographic information system (GIS) data with advanced network modeling, MWH Soft has made it easier and faster for engineers and GIS professionals to make more informed decisions and gain significant productivity and operational efficiencies by better leveraging valuable information and automating sanitary, storm and combined sewer systems model construction and analysis. Because it simplifies and streamlines the review, creation, validation, cleaning, editing and management of spatial information, the suite enables InfoSWMM users to make the most of their data and develop accurate and reliable dynamic sewer models faster than ever before.

InfoSWMM Suite is the world's only wastewater collection system modeling and management application software to be certified by NAGCS (National Association of GIS Centric Software - It offers the field's most advanced dynamic sewer network analysis capabilities, addressing every facet of utility infrastructure management, operation and maintenance and delivering the highest rate of return in the industry. All operations of a typical sanitary, storm and combined sewer system - from analysis and design to management functions such as water quality assessment, urban flooding, real-time control and record keeping - are addressed in a single, fully integrated geoengineering environment. The suite offers users unprecedented power in managing urban runoff and wet weather water quality problems in their combined, sanitary and storm sewers; optimizing their BMP and LID designs; and meeting SSO and CSO regulations. The model also offers very sophisticated Real-Time Control (RTC) schemes for the operational management of wastewater systems and hydraulic structures. The unparalleled performance modeling of InfoSWMM Suite sets new benchmarks in scalability, reliability, functionality and flexibility within the powerful ArcGIS environment.

The Suite focuses on minimizing the tedious tasks associated with sewer network model construction and data checking. Among its compelling new features, it automatically:

  • Converts contours or survey points into Digital Elevation Models (DEM)
  • Identifies and fills sinks in a DEM
  • Generates flow direction and flow accumulation grids to visually identify overland flow paths
  • Defines stream vectors and overland flow paths from flow accumulation grids
  • Delineates watersheds utilizing a DEM and threshold value or man-made collection points
  • Assigns rain gauges to subcatchments based on location
  • Conducts advanced polygon processing for soils, land use, and pervious/impervious percentage layers to globally populate infiltration, pollutant, and pervious/impervious attributes
  • Calculates subcatchment area, width, overland flow length, and slope
  • Generates subcatchments from existing raster data Cuts rasters quickly with any user-defined polygon

Pricing and Availability
InfoSWMM Suite is now available worldwide by subscription to the Platinum program. Subscription members can immediately download the new extension free of charge directly from The MWH Soft Subscription Program is a friendly customer support and software maintenance program that ensures the longevity and usefulness of MWH Soft products. It gives subscribers instant access to new functionality as it is developed, along with automatic software updates and upgrades. For the latest information on the MWH Soft Subscription Program, visit or contact your local MWH Soft Certified Representative.

Source: MWH Soft, May 4, 2005