Si-o-Se Pol The Allahverdi Khan Bridge in Isfahan, Iran, is popularly called Si-o-Se Pol, Farsi for “The Bridge of the 33 Arches.” (more) Si-o-Se Pol bridge over Zayandeh River, Isfahan, Iran Also known as: Allahverdi Khan Bridge, Pol-e Si-o-Se Chashma Written by Stephanie Triplett Stephanie Triplett is a freelance writer and academic editor based in Chicago. Stephanie Triplett Fact-checked by Britannica Editors Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree.... Britannica Editors Last updated May 8, 2026 •History Si-o-Se Pol, double-deck, brick-and-stone masonry arch bridge built in the early 17th century during Safavid rule in the city of Isfahan, Iran. The bridge, whose name means “The Bridge of 33 Arches” in Farsi, spans the Zayandeh River, connecting uptown and downtown Chahār Bāgh (“Four Gardens”; historical avenue between north and south Isfahan). It is Isfahan’s longest bridge, notable for its architectural craftsmanship and continual use as a public gathering space since its construction. In...

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