Bridge Automation is a software development company focused on providing free, web-based engineering tools for bridge design and analysis professionals. Our tools are built to assist structural engineers with everyday calculations and to help accelerate the design process, removing the friction that comes with installing, licensing, and maintaining traditional desktop engineering software.

We serve a diverse audience — from undergraduate students encountering structural analysis for the first time, to licensed professional engineers performing bridge design and load rating calculations in practice. Our tools are intentionally kept simple and accessible, with clear input fields, immediate results, and no account or subscription required.

Our software suite is available at bridgeautomation.net/OurSoftware and includes tools for:

• Beam Analysis — Moment, shear, and reaction calculations for simple and continuous beams
• Column Design — Axial and flexural capacity checks for reinforced concrete columns
• Section Properties — Geometric and structural properties for standard and custom cross-sections
• Reinforcement — Reinforced concrete design and capacity check tools for beams and slabs
• Prestress — Prestressed concrete calculations including losses and strength verification
• Math Solver — General purpose engineering math utilities and expression evaluator

All tools are free to use and run entirely in your browser — no installation required. We continually improve existing tools and add new capabilities based on user feedback from the community forum.

The bridgeautomation.net software suite is built on a Java Enterprise Edition (Jakarta EE) stack using JavaServer Faces (JSF) and PrimeFaces for the front end, deployed on Apache Tomcat. Calculations are performed server-side in Java, ensuring consistent results regardless of the user's browser or device. The static portal pages — including this one — are managed separately to keep the site lightweight and fast-loading.

Engineering software must produce correct results. All Bridge Automation tools are verified against published textbook examples and hand calculations before release. Where applicable, calculations follow established design codes and standards, including ACI 318 for reinforced and prestressed concrete. Users are encouraged to post questions or flag unexpected results in the forum; all reported issues are reviewed and corrected promptly.

As with any engineering tool, results should be reviewed by a qualified engineer before being used in a final design. Bridge Automation tools are intended to assist with calculations, not to replace engineering judgment.

We believe that quality engineering tools should be accessible to everyone. Expensive software licenses create a barrier that disproportionately affects students, smaller firms, and engineers in developing regions. Bridge Automation is committed to removing that barrier by building reliable, accurate, and easy-to-use software that anyone with a web browser can use for free.

In addition to our web-based tools, Bridge Automation publishes Android apps on Google Play for engineers who need quick calculations in the field:

• Vert Curve 2 — Vertical curve calculations for highway and roadway design, including elevations at any station and high/low point location.
• Horiz Curve — Horizontal curve geometry for roadway layout, covering radius, tangent length, arc length, chord, and deflection angles.

Visit our main site at bridgeautomation.com for engineering resources, reference materials organized by discipline (concrete, steel, seismic, geotechnical), DOT links, a community forum, and a blog covering bridge and structural engineering topics. The blog is updated regularly with technical articles, design tips, and news relevant to the structural engineering community.

Have questions or suggestions? Visit the contact page or browse the FAQ for answers to common questions.