Selected Features
LARSA 4D Section Composer
For modeling cross-sections, including standard, parametric, nonprismatic, and custom shape sections.
Recent Projects
Arbour Stone Bridge
A twin-arch steel pedestrian bridge designed by Infinity Engineering in Alberta, Canada.
Lake Hodges Bridge
The world’s longest stress ribbon bridge in San Diego, California, designed by T.Y. Lin International.
Pitt River Bridge
A twin tower cable-stayed bridge in British Columbia, Canada, designed by International Bridge Technologies.
4D News
LARSA 4D Version 7.7 Released
An update to LARSA 4D is now available. March 5, 2013
Updated Manuals for Bridge Projects
The introductory and advanced manuals for bridge projects have been updated for LARSA 4D 7.5, and a new manual on seismic and dynamic analysis is now available. See the documentation page. Nov 21, 2012
LARSA 4D Journal: March 2012
The LARSA 4D Journal: March 2012 is out, featuring the Arbour Stone Bridge by Infinity Engineering Group and LARSA's Steel Plate Girder Design Module. March 15, 2012
Introducing LARSA 4D Bridge pLT
LARSA 4D Bridge pLT is our new entry-level package for the analysis and design of bridges, especially steel girder bridges. For more, see the BRIDGE Series.
LARSA 4D Publications
View the complete list of LARSA 4D publications including 4D Journals and product tutorials on our publications page.