XP Software announced today the official approval of XPSWMM 2D and XPSTORM 2D by the U.S. Federal Emergency Management Agency (FEMA) for two-dimensional flood modeling and mapping for the National Flood Insurance Program (NFIP). The XPSWMM and XPSTORM programs have been FEMA-approved for one-dimensional modeling since 2003.
Both XPSWMM 2D and XPSTORM 2D (often referred to as XP2D) allow floodplain managers and engineers to accurately model urban floodplains, open and closed channels, surface and sub-surface flows, braided river systems, levee breaches, dam breaks and more with a stable and tested 1D/2D model, fully-supported in a commercial software package. Its ability to model both hydrology (including local methods) and hydraulics in both the 1D and 2D layers, and to communicate with GIS and CAD systems, as well as its advanced reporting features and visualization tools, will assist engineers in providing NFIP communities, federal and local agencies, and land owners and floodplain managers with accurate flood models and maps.
“We are very pleased with FEMA’s approval of the use of XPSWMM 2D and XPSTORM 2D for flood mapping and Letters of Map Change,” said Colby Manwaring, P.E., president of XP Software. “This confirms what many of our users already know: an integrated 1D/2D model that analyzes the whole of a drainage area (hydrology, hydraulics, channel flow, pipe flow, overland flow) is an excellent choice for accurate flood mapping. Thanks to FEMA for this recognition and to those users who supported this review and approval with real-world modeling success stories.”
Source: XP Software
