Stone Arch Bridge Designer

Design a stone arch bridge in minutes

Configure a validated, low-carbon stone arch bridge online and download the drawings.

Start designing See pricing
Why stone arch bridges

Time tested. Low carbon. Low cost.

Cost-effective

Build up to four times more bridges than reinforced concrete. Local materials and labour save 60–80% on comparable spans.

Sustainable

No steel and only a fraction of the cement of concrete bridges — avoiding 50–75% of construction-related carbon emissions.

Durable

A technology proven over millennia. Stone arches still in service today carry modern heavy traffic loads.

Configurator

Build your bridge

Set the span, width and crossing conditions. The model stays within a design envelope validated on 120+ built bridges.

  • Live 3D preview of your bridge — arches, abutments, wing walls, river
  • Instant indicative bill of quantities, from the same tables as the engineering reference model
  • Watermarked concept drawing sheets (elevation, plan, section, setting-out), PDF included
Start designing
Important. Drawings are issued within a validated design envelope and are concept-level. They must be verified on site for foundations, hydrology and scour by a qualified engineer before construction. For a site-specific, stamped design, choose Custom project below.
Pricing

Three ways to get your drawings

Concept drawings

€190 / design
  • Concept drawings set in PDF
  • Site-verification checklist
  • Standard design, within the validated envelope
  • Ready for your engineering verification
Get drawings

Tender pack

€290 / design
  • Everything in Concept drawings
  • Bill of quantities (BoQ)
  • Technical specifications
  • Ready for your engineering verification
  • Ready for your Terms of Reference
Available soon

Custom project

from €750 / design
  • Site-specific engineering: foundations, hydrology, scour
  • Certified & stamped, ready-to-build design
  • Designs beyond the standard tables
  • Framework & volume rates for agencies and bureaux
  • Priced per project — our team follows up within 2 working days
Request a quote

Need a stamped, site-specific design or a crossing outside the standard tables? Choose Custom project.

Good to know

Frequently Asked Questions

What does “within the validated envelope” mean?

The web-based configurator only builds spans, widths and crossing conditions pre-calculated, pre-verified, and used successfully on 120+ stone arch bridges in use today. Anything outside that standard range is not sold through the configurator, but through Custom project.

Are the drawings ready to build from?

The configurator produces concept-level drawings without engineer stamp, signature or certification. Choose Custom project if you would like our engineers to design for your specific local hydrology and geotechnical conditions, at which point they certify the drawings and take responsibility for the structural design. With Concept drawings or Tender pack, responsibility remains with your engineer, who signs off — this is clearly marked on each drawing delivered.

What do I receive?

Concept drawings: general-arrangement drawings (setting out, deck, elevation, longitudinal and cross section) in PDF. The tender pack adds a quantities bill of quantities (BoQ) and technical specifications, formatted to drop into your tender. Custom project is scoped per brief.

Can you design outside the standard tables?

Yes. Bespoke spans, unusual site conditions or a fully stamped design are handled under Custom project, priced per project after a short brief.

Who is responsible for the built structure?

The engineer of record (your engineer for Concept drawings or Tender pack; our engineer if you chose Custom project and carry our stamp), the contractor executing the works, and the owner of the bridge. Concept drawings are a design aid within a validated envelope — not a substitute for site-specific engineering, local approval and construction supervision.

Disclaimer. The concept-level tiers (Concept drawings and Tender pack) are issued within a validated design envelope and are not engineering-checked for your site. They must not be used for construction without site-specific verification, approval and signature or certification by a qualified engineer. For a stamped, ready-to-build design, choose Custom project.
Contact

We are here to help

Tell us about your project. We reply within two working days.