AASHTOWare Software - From the American Association of State Highway and Transportation Officials.

BeamPro - An "easy-to-use" continuous beam analysis program for Windows 3.1, Win95 and NT4.0.

Eriksson Technologies, Inc. - Bridge engineering and structural engineering analysis and design software.

GEO-SLOPE International Ltd. - CAD software for geotechnical and geo-environmental modelling.

Pavement-Transportation Computer Assisted Structural Engineering - Distribution site for free airfield, road, railroad, and general transportation, design and evaluation software written by US Army Corps of Engineers.

Haestad Methods, Inc. - Designer of hydrology and hydraulics software for civil engineers. Our products include: WaterCad, PondPack, SewerCad, CulverMaster, FlowMaster, HEC-RAS, and Graphical HEC.

ICAB Finite Element Analysis - Dynamic and static analysis and design of structures.

MIDUSS 98 - Stormwater modeling software intended for designers of stormwater management systems.

4D SOLUTIONS - Integrated terrain modeling and civil works software package used in surveying, land subdivisions, drainage, earth moving, landscape design, mapping and mining applications.

Engineering Software Center - Search engine for software in the civil engineering field.

C-Concepts, Inc. - Structural engineering software for the design of towers, buildings and bridges.

Spyder Software - Design and analysis of reinforced concrete foundations.

ARTS hydraulic design software - A graphical hydraulic design package covering waterhammer, water/wastewater treatment design, open channel flow and pipe networks.

Microstran - Structural analysis and design of steel and concrete structures, such as bridges, transmission towers, buildings, trusses, beams, columns, and frames.

MINCAD Systems - Numerical modeling software for mining and pavement engineering.

Structures Assistant - Stress Analysis for beams, plates, and bolted joints. Includes a section properties calculator and dynamic viewing of deformed shapes.

CADS - Civil and Structural Engineering Software - Analysis, design and detailing software applications for civil and structural engineering.

GTS Cadbuild Limited - Structural Analysis and design software including finite elements, steel and concrete design.

Rockgrout - Animated and interactive programs explaining the design and construction of cement grouting. Includes an instructive game in which an imaginary hole is 'grouted'.

Cheops Steel Design Software and 900 Equations online - Handbook Series utilizing state-of-the-art computing aids, multi-media, discussion forum, and interactive responses. Internet data base with about 900 free formulae in MathML(XML), Text and images.

Creative Engineering - Civil Engineering software for Macintosh.

Interactive Design Systems, Inc. - Bridge engineering software for pre-stressed concrete structures, segmental concrete bridges and cable-stay bridges.

Environmental Modeling Research Laboratory - Environmental modeling software specializing in ground water, watershed, and surface water modeling.

Rescol - Seismic software for soil-structure interaction - Software to determine stiffness of foundations and footings and develop seismic spectrums for seismic analysis.

BOSS International - Software, bookstore, and other technical information for civil and environmental engineering professionals.

Robert Steltman, Inc. - Solutions for civil engineers and surveyors.

Spreadsheets for Structural Engineering - Focuses on the use of Microsoft Excel in the structural engineering and construction environments. Provides fully working spreadsheets and links to others sites where spreadsheets can be obtained.

ASDIP Structural Design - Software structural design of building components such as footings, beams, columns, walls, corbels, etc. Fully compatible with Windows platforms.

Parametrix Struc Plus - AutoCAD and IntelliCAD compatible design and drafting software for structural engineers in the UK.

Software Solutions - Providing software solutions for both industrial and commercial engineering applications.

ENCAD Engineering Software - Analysis and design of buildings, bridges, masts, towers, geotechnics and drainage schemes.

Traf-O-Data - Transportation tracking and monitoring hardware and software.

The Harmac Company - Assists highway agencies and their personnel with database applications assisting in the tracking of inventories, inspections and maintenance.

Spreadsheets for Structural Engineers - Includes bridge design and GT STRUDL post-processor.

Steel Framing Design - Light-gauge steel framing design for structural engineers, architects and contractors.

The Geotechnical Office - Borehole logging and management software.

PC Engineers - Software for structural design.

NECO Engineers - Software for designing structural members, prestresses and precast concrete members.

Soakaway Design - Wastewater system design, includes rainfall map for the U.K.

Concrete Building Design by Computer - Free computer software with explanations and illustrations covering the analysis and design of concrete building structural components.

CSC- Structural Design Software - Structural analysis and modeling, steelwork and concrete design using TEDDS, Fastrak 5950, Fabtrol, 3D+, S-Frame, S-Steel, B-Sect, C-Sect, W-Sect and Orion software.

CADS Software India - Civil and structural applications including steel and reinforced concrete design, structural analysis, and road and drainage.

TDV Austria - Software producer and engineering consulting firm in the field of technical data processing. Its main objective is the development and application of software used in civil and mechanical engineering.

GT STRUDL Structural Design & Analysis Software - Integrates graphical modeling, static/dynamic/nonlinear/ push-over analyses, steel & reinforced concrete design, finite element analysis, and database management into a single system for MS/Windows.

RebarWin - Software for detailing reinforcement bars.

StreaMMetrics - Technical software for watershed managers & engineers specializing in applied stream geomorphology.

Pizer Incorporated - HYDRA storm and sanitary sewer modeling software and earthwork cut and fill software.

XcalcS - On-line tools for structural design: beams, plates, vessels, and more.

X32 Group, Inc. - Highway safety analysis software for traffic accident studies, which includes data processing and filtering, accident summary, collision diagram, calculating accident rates and estimating safety benefits.

BridgeAsyst - Bridge Management Software - Developed by bridge engineers to predict future expenditure programs.

SAFI Software - Analysis and design of steel frames, concrete structures, bridges, prestressed girders, latticed towers and tubular towers.

Traffic Engineering Software - Provides the patented TRAF-Safe and TRAF-Impacts software.

Meca Consulting - Structural Engineering software for wind, plate, and shell design.

Structural Calculation Software - TEDDS - Structural Calculations within Microsoft Word integrating analysis and design, complete with sketches, diagrams and notes.

Steelwork Design Software - FASTRAK - Software for the design of portal frames, multi-storey buildings and connections.

Cambridge Systematics Inc. - Provides a web-based support center, technical notes, and a user product forum for the aashto bridgeware products - pontis, virtis, and opis - and the aashtoware survey data management system.

SAS Suite, LLC - Bridge Analysis and Design. Integrated software for bridge engineers.

SOFTEK - Windows based structural engineering and analysis software including S-Frame, P-Frame and S-Steel.

Bestech Systems Limited - Providers of a software suite for the design of highway and railway bridges. It integrates structural analysis with code checking to AASHTO LRFD, BS 5400 and AUSTROADS.

Diana Analysis bv - Offer complete software solutions for the civil engineering world, using finite element methods. The company's main product is the DIANA (displacement analyser) finite element program.

Integer - Independent software house specialising in application software for the construction industry, including structural steelwork, reinforced concrete and bridge design.

Affinity Computing - Software for analysis of cross sections loaded in torsion. Works from DXF file input.

Open Channel Flow Measurement Software - Discharge calculations for rectangular, V-notch, Cipoletti weirs. End depth flow measurement for culverts, rectangular and triangular channels.

Traffix - Traffic simulation.

McIntyre Associates - Software for concrete test reporting, moisture-density (Proctor) test reporting, Field (Insitu) Density reporting for soils and asphalt; for compliance with CSA, ACI and ASTM standards.

DTWARE Engineering Software - Software for column and continuous beam analysis.

SCIA-Online - Specialised software for the civil construction industry.

Seismic Performance Engineering - Performance-based seismic engineering design and analysis.

SoilVision Systems Ltd. - Knowledge-based database software for individual or corporate warehousing of saturated-unsaturated soil properties. A database of over 6000 soils is also provided.

RAPT Concrete Design Software - Reinforced concrete and partially prestressed concrete members to various design codes.

GaLa Reinforcemet - General analysis of reinforced concrete elements including reinforcement, curvature and stiffness (order II), cracks, and safety chart.

EZ-BEAM - Provides shear and moment diagrams, deflections and equations of equilibrium. Output exports to MS Word.

Infrasoft Limited - Surface modeling, highway, railway and site design and analysis software.

Ardy Environmental Software - Slope stability analysis, geotechnical, and geoenvironmental (geo-environmental) models and modeling software including GALENA.

Levelworks - Surveying software for the HP48 calculator.

Ram Caddsys - Steel and reinforced concrete detailing.

RISA Technologies - General-purpose structural engineering software for Windows.

Alashki Engineering Solutions - GaLa Reinforcement - Software for analysis of reinforced concrete elements, including strains, curvatures, stiffnesses (II order, creeping) and cracks.

SPACE GASS Software for Structural Analysis and Design - Windows-based structural analysis and design program for 2D and 3D frames, trusses, grilages and beams.

geo&soft international - Geotechnical software for rock mechanics, soil mechanics, hydrogeology, geophysics and geology.

Anderson-Hydro - The arid lands hydrology model (AHYMO) program for evaluating rainfall and runoff, including analysis of storm sewers, reservoirs, open channels, steep slopes, and urban street flow.

SIRIA Technologies - Environmental pollution modeling.

SAM - Software suite for the design of highway bridges.

Static and Dynamic Structural Analysis of 3D Moment-Resisting Frames - Free software for static and dynamic analysis of 3D moment-resisting, linear-elastic frames. Source code available.

Engineering Software Center - Specializes in listing software in the civil engineering field. Hosted by Hurricane Electric.

Archon Engineering Civil/Mechanical Software - Offers 25 software programs for Civil/Structural and Mechanical Engineering design and analysis.

Spencer Engineering Software - For the evaluation and selection of standard open-web steel joists for floor and roof construction, including joist/slab vibration analysis.

Finite Element Software for Strucural Engineers - AxisVM is a high productivity finite element analysis software tool for civil engineers.

Engineering Shareware and Freeware Programs - Engineering shareware and freeware programs including drafting and modeling programs.

Septic Edge - Septic System Planning and Design Software - Software to prepare on-site sewage facility (OSSF) and septic system planning materials. Includes soil analysis, septic tank, aerobic, absorption, LPD, ET, sand filter, gravelless pipe, mound, leaching chamber, drip, and spray systems.

Finite Element Software - Simple finite element software for engineering stress analysis of 2D problems.

Armtec Engineering Software - Offers a free downloadable unit conversion toolkit and request form for other free software for stormwater detention system design, design and specification of Multi-Plate Structural Plate Corrugated Steel Pipe, and Life-Cycle Cost Analysis. Canada.