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This unique design puts stress into compression of the arch members, in line with the grain, which,
with a firm foundation, makes it incredibly stronger than any beam design.
It needs less lumber and has many advantages over a conventional truss or beam bridge and none of its ugliness.
The entire arch assembly consists of only 2 parts, duplicated as required.
It is perfectly suited for prefab, compact transportation and quick, easy assembly on-site.
An infinite variety of arcs, strengths, configurations and spans up to 50 feet, using standard lumber, are possible. If you prefer metric measurements, specific spans, or wish to use other lumber sizes, then contact me for a quote. I'll try to help as best I can.
Sechelt, BC, Canada
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The design and construction techniques presented on this page are protected from patents by prior art & copyright and I reserve all rights regarding this design. Feel free to utilize this information for personal use but applications involving the exchange of money, require my approval. If you'd like to build bridges for profit, I'd be happy to help you. :-) Frank Petersohn