With over 30 years of experience in bridge engineering, BPK Mosty has long been a trusted name in Poland’s transport infrastructure sector. As the complexity of modern railway and road projects has grown, so too has the need for more agile, collaborative design workflows. That’s where ALLPLAN comes in.
By embracing ALLPLAN Civil, Visual Scripting, and PythonParts, BPK Mosty is transforming how infrastructure projects are delivered – from multi-span viaducts to advanced culvert systems. Below, we explore how the firm is putting BIM into practice: coordinating teams, automating design, and tackling some of the country’s most ambitious rail and road challenges through parametric modeling and intelligent automation.
BPK Mosty’s Digital Transformation
BPK Mosty’s journey into BIM began in 2020 with the implementation of ALLPLAN for two reinforced concrete structures commissioned by the National Polish Water Management Authority. Encouraged by the efficiency gains, the firm rapidly expanded its use of the software. By the end of 2023, ALLPLAN was used to produce over a third of all project drawings – more than 200 in total.
The turning point came in 2023, when BPK Mosty secured its first BIM-mandated public contracts for the Solidarity Transport Hub. To meet the project’s digital delivery requirements, the firm invested in additional ALLPLAN licenses and fully embedded the software across both design teams.
Today, ALLPLAN is integral to the day-to-day work of nearly all designers at BPK Mosty. With a dedicated BIM coordinator and growing expertise in parametric modeling, the firm has positioned itself as a leader in digital infrastructure design.
Copyright: BPK Mosty 
Copyright: BPK Mosty 
Copyright: BPK Mosty Project Highlight 2: High-Speed Rail Viaducts and Truss Bridges
Another milestone for BPK Mosty came with Poland’s first High-Speed Rail program – a national investment requiring the design of dozens of engineering structures, from compact culverts to multi-kilometer viaducts.
Among the most impressive was a 5-kilometer multi-span railway viaduct built using prestressed concrete with a box girder cross-section. Using ALLPLAN Civil, the team was able to implement fundamental changes to the profile, width, and thickness of the structure within minutes – updates that would typically take hours in a traditional workflow.
ALLPLAN also played a key role in modeling two steel truss bridges spanning 460 and 250 meters, as well as a 131-meter single-span viaduct with a parabolic top chord and hexagonal wind bracing. Despite the software’s concrete focus, ALLPLAN Civil proved highly capable for complex steel structures, with modules also used creatively for drainage systems, road barriers, and architectural elements like staircases and noise walls.
This project showcased the flexibility and depth of ALLPLAN – and how digital tools can handle the demands of next-generation rail infrastructure.
Parametric Design with PythonParts
Beyond large-scale infrastructure, BPK Mosty has embraced parametric design to streamline everyday engineering challenges. Using ALLPLAN’s Visual Scripting environment, the team has developed a library of custom PythonParts – parametric components tailored to their specific workflows.
These include editable structures like culverts, wingwalls, embankments, and retaining elements that adapt automatically to the surrounding geometry. Logic gates built into the PythonParts control the visibility and behavior of elements, allowing users to toggle features, align to design axes, or adjust slopes, lengths, and reinforced concrete structural element thickness with just a few clicks.
One standout was a prefabricated road and rail culvert with a highly customizable interface and cause-and-effect logic that updates the model in real time. What once required manual drafting and repeated revisions can now be configured in minutes – even complex changes like switching end-wall types or mirroring structures.
For BPK Mosty, PythonParts aren’t just about automation – they’re about control, consistency, and speed. Combined with BIM coordination, these tools reduce rework, improve accuracy, and empower small teams to deliver highly detailed designs with confidence.
Copyright: BPK Mosty 
Copyright: BPK Mosty 
Copyright: BPK Mosty BIM for Real-World Infrastructure Projects
BPK Mosty’s experience shows that Building Information Modeling isn’t just for major firms with massive teams – it’s a practical, scalable solution for real-world infrastructure design. With ALLPLAN, the team has accelerated workflows, reduced coordination errors, and delivered complex, multi-stakeholder projects with clarity and precision.
Parametric modeling and PythonParts have empowered engineers to adapt quickly to change, maintain design consistency, and automate repetitive tasks without sacrificing quality. By combining deep civil engineering expertise with intelligent tools, BPK Mosty is setting a new standard for digital project delivery in Poland – one that’s fast, collaborative, and built for the future.
