Public Domain program index
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Public Domain software is where the author has made the program source code public. Many of these programs have been written by American quasi-governmental bodies that are required to release publically funded work. The original code can often be found for free on the WWW. However, anybody can take this code, make their own changes to it, and then sell it at commercial prices. Therefore this listing contains a mixture of free, or nearly free, programs and commercial versions of these programs. The commercial versions usually have a better user interface and user support, that the original free programs may be lacking.

Geotechnical programs

 Cathodic protection 
Program
Operating system
Cost
 CP Diagnostic  DOS  

 Drainage 
Program
Operating system
Cost
 CANDE-89  DOS US Dollars 40
 DAMP  DOS US Dollars 50

 Dynamics (behaviour and earthquake) 
Program
Operating system
Cost
 APOLLO  CDC mainframe Free on WWW
 CHARSOIL  DOS Free on WWW
 CUMLIQ  DOS Free on WWW
 EQRISK  DOS Free on WWW
 GADFLEA  DOS, CDC mainframe Free on WWW
 LASS II-III  CDC mainframe Free on WWW
 MASH  CDC mainframe Free on WWW
 PSEQGN  DOS, CDC mainframe Free on WWW
 RASSUEL  IBM mainframe Free on WWW
 SEAWAVE  DOS Free on WWW
 SHAKE21  Win95/98, WinNT US Dollars 1000 (Version 1.0), US Dollars 1200 (Version 2.0), discounts for academic usage
 SHAKE91  DOS Free on WWW
 SIMQKE-I  DOS, IBM mainframe, VAX Free on WWW
 SIMQKE-II  UNIX, DEC-Unix, SUN-Solaris, HP-UX, SGI IRIX and Linux Free on WWW
 SPECEQ-UQ  DOS Free on WWW
 SPECTR  DOS Free on WWW
 WAVES  DOS Free on WWW

 Dynamics (soil-structure interaction) 
Program
Operating system
Cost
 ADAP-88  UNIX, Vax Free on WWW
 BASSIN  CRAY and Fujitsu VP Free on WWW
 EACD-3D-96  UNIX, DEC/Alpha Free on WWW
 EAGD-84  DOS, CDC mainframe, IBM mainframe Free on WWW
 EAGD-SLIDE  UNIX, DEC/Alpha Free on WWW
 ERST  DOS Free on WWW
 FLUSH  CDC mainframe, IBM mainframe Free on WWW
 ISADAB  CDC mainframe Free on WWW
 MICROSARB  DOS Free on WWW
 NEABS  DOS, CDC mainframe Free on WWW
 SPASM  Univac Free on WWW
 TOWER  DOS Free on WWW

 Geothermal 
Program
Operating system
Cost
 AUITOUGH2  DOS  
 AUTOUGH2  DOS  
 HYDROTHERM  UNIX, DG, SGI, Sun Free on WWW
 iTOUGH2  Win95/98, WinNT, Win2000, WinXP, Mac, PowerMac, UNIX Varies from free to US Dollars 6,000
 TOUGH2  DOS  
 TOUGH2-MP  WinNT, Win2000, WinXP, Mac, UNIX, Linux Free on WWW

 Ground improvement 
Program
Operating system
Cost
 FEQDrain  Win95/98, WinNT Free on WWW

 Insitu testing 
Program
Operating system
Cost
 CONEPLOT  DOS US Dollars 200
 CPTINT  DOS US Dollars 350

 Numerical analysis (rock) 
Program
Operating system
Cost
 Map3D-PV  DOS US Dollars 50

 Numerical analysis (soil) 
Program
Operating system
Cost
 SWANDYNE for Windows  DOS, Win95/98, WinNT GB Pounds 3,000 p.a. (commerical ) GB Pounds 15 (non-commerical research)

 Pavements 
Program
Operating system
Cost
 BERM  DOS US Dollars 30
 ELSYM5  DOS US Dollars 45
 EXPEAR  DOS US Dollars 90
 ILLI-PAVE  DOS US Dollars 45
 MAPCON  DOS US Dollars 165

 Piles (lateral loading and groups) 
Program
Operating system
Cost
 COM624P  DOS US Dollars 75

 Piles (single) 
Program
Operating system
Cost
 SPILE  DOS US Dollars 50
 WEAP87  DOS US Dollars 125

 Rock mechanics 
Program
Operating system
Cost
 BLOCK  DOS Free on WWW
 HYFRACP3D  DOS  

 Settlement analysis 
Program
Operating system
Cost
 EMBANK  DOS US Dollars 40

Geoenvironmental programs

 Aquifer test analysis 
Program
Operating system
Cost
 AIRSLUG  DOS, UNIX, DG, SGI, Sun Free on WWW
 OPTP  DOS US Dollars 50
 SLUGC  DOS US Dollars 50
 SLUGT  DOS US Dollars 50
 TGUESS  DOS US Dollars 50
 THCVFIT  DOS US Dollars 50
 THEISFIT  DOS US Dollars 50
 TIMELAG  DOS US Dollars 50
 TSSLEAK  DOS US Dollars 50
 VARQ  DOS US Dollars 50
 WELL  DOS US Dollars 60
 WELLTEST  DOS US Dollars 195

 Contaminant modelling 
Program
Operating system
Cost
 CHAIN  DOS  
 EPA-VHS  DOS US Dollars 50
 ESAP-95  Win3x  
 HELP Model  Win3x, Win95/98, WinNT, Mac, PowerMac, UNIX US Dollars 120
 HYDRUS  DOS Free on WWW
 ICE-1  DOS US Dollars 50
 MAP  DOS US Dollars 95
 MULTIMED  DOS US Dollars 330
 NAPL Simulator  DOS, UNIX Free on WWW
 PAGAN  DOS  
 STANMOD  DOS Free on WWW
 SUMMERS  DOS US Dollars 75
 T2VOC  DOS  

 Contaminant transport (1D) 
Program
Operating system
Cost
 BIOSCREEN  Win95/98, Excel Free on WWW
 Chemflo  DOS Free on www
 CHEMFLOW  DOS Free on WWW
 DUST-BNL  DOS  
 FEMA  DOS  
 FEMWASTE  DOS  
 ONE-D  DOS US Dollars 90
 PESTAN  DOS Free on WWW
 PRZM2  DOS US Dollars 110
 RITZ  DOS Free on WWW
 SESOIL Version 2.1  DOS Free on WWW
 TETRANS  DOS, Mac  
 UNSATCHEM  DOS Free on WWW
 VIRTUS  DOS US Dollars 75
 VLEACH  DOS US Dollars 90

 Contaminant transport (2D analytical) 
Program
Operating system
Cost
 AGU-10  DOS US Dollars 150
 ANALGWST  UNIX, DG Free on WWW
 BIOMOC  DOS, UNIX, DG, SGI, Sun Free on WWW
 CANVAS  DOS US Dollars 95
 CHAIN 2D  DOS  
 HSSM  DOS, Win3x Free on WWW
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Geotechnical & Geoenvironmental Software Directory ©  Bedrock  2025