These copies of public domain or other free software packages are provided as a public service.
The State Standards Workgroup provides no technical support for this software, and assumes no liability for its currentness, applicability to any situation or for the results of its use.
Internet links are provided at the bottom of the page for more information on installation and use, or for the updated versions of this and other software.
 
 
 

Selected Public Domain Hydrology / Hydraulics Software:

Click below and choose "Open" to install the Windows(TM) software versions. Click below and choose "Save" (to Disk) for DOS software versions. Additional installation software may need to be run for DOS software. Software may be incompatible with certain computers and/or operating system versions. Documentation is available on the internet (See internet links below).  State Standard 2-96 Regression Equations in Quattro Pro and Excel format may be found in the "regress" directory on the CD.

FEMA:
Quick-2         Managing Floodplain Development in Approximate Zone A Areas (Win NT) ver 2.0
Quick-2         Managing Floodplain Development in Approximate Zone A Areas (Win 95) ver 2.0
SFD               Simplified Floodway Determination - Feb. 1989 Version

Corps of Engineers:

HEC-HMS    Hydrologic Modeling System (Win) ver 2.1
HEC-RAS    River Analysis System (Win) ver 3.1
HEC-1          Flood hydrograph Package (DOS) ver 4.1
HEC-2          Water Surface Profiles (DOS) ver 4.6

NRCS:

TR-55            Urban Hydrology for Small Watersheds (DOS) ver 2.10
TR-55            Urban Hydrology for Small Watersheds(Win Beta) Beta ver
TR-64            Floodway (DOS) 5/8/89 ver

FHWA:

HY-8              Culvert Analysis (DOS) ver 6.1
HY-22            Urban Drainage Design Programs (Win) 2002 ver
HYDRAIN     Integrated Drainage Design Computer System (Win) ver 6.1

HEC:  http://www.hec.usace.army.mil/software/software_distrib/
NRCS: http://www.il.nrcs.usda.gov/engineer/enggsoft.htm
FHWA: http://www.fhwa.dot.gov/bridge/hyddescr.htm
NWS:  http://www.nws.noaa.gov/oh/hrl/rvrmech/rvrmain.htm
EPA:  http://www.epa.gov/epahome/models.htm
USGS: http://water.usgs.gov/software/surface_water.html
FEMA: http://www.fema.gov/mit/tsd/frm_soft.htm