Internet resources discussed in the CDM Smith University Introduction to SWMM class are listed here. Contact Mitch Heineman in CDM Smith's Boston office for further information.

SWMM SWMM 5      SWMM-Users list      SWMM-Users archives      Legacy versions      Bob D's pages      SWMM4 help      SWMM4 manuals      Example runoff calcs
Met Statistics NWS rainfall atlases      Basic climate data      Monthly evaporation      Precip normals      Wind speed      State climate offices      NWS regional offices      Canadian IDF     
Met Data NOAA NCEI      NCEI viewer      QCLCD      USHCN      Community Rain Network      KNMI Explorer      USU viewer      Wunderground      MesoWest      California      NOAA Global Daily FTP
Hydrology USGS NWIS      Soils calculator      Horton parameters      Green-Ampt parameters      Evaporative depth      NWS river hydrology      USGS hydrography tracing      US soils
Hydraulics Tide data      Natural channel Manning’s N      Open channel Manning's N      Closed conduit Manning's N      FHWA Manual HEC-22 (form loss coefficients etc.)     NCHRP Culvert Losses     Normal flow spreadsheet
Guidance EPA CSO Guidance for Monitoring and Modeling      EPA Model Development Guide      WaPUG Code Of Practice      USACE Standard Project Flood      Other USACE manuals      New Zealand Modeling Guidelines      Rural modeling
Vendors Autodesk SSA      Bentley SewerGEMS      CHI PCSWMM      Deltares SOBEK      DHI MIKE URBAN      Innovyze H2OMap SWMM      Innovyze InfoSWMM      Innovyze InfoWorks      XP Solutions xpswmm
Freeware EPA SSOAP      EPA DFLOW      HEC-SSP      NOAA WCT      CSInterfacer      USGS NSS      SWMMToolbox(Python)      EPA CREAT      USGS PeakFQ
GIS Global Data Explorer      Global hydrography      US National Map Viewer      USDA Soils      Old USGS maps (.pdf)      USGS Historic Topo Explorer      Nautical charts      David Rumsey maps      State GIS sites