Siosepol

Siosepol, also spelled Si-o-sepol, is a historic stone-arched bridge in Isfahan, Iran, spanning the Zayandeh River. It is also known as Allahverdi Khan Bridge or the Bridge of 33 Arches, and its name in Persian means “thirty-three arches.”

The bridge was constructed in the early 17th century during the Safavid era, completed around 1602–1603 under Shah Abbas I. It was built under the direction of Allahverdi Khan, the governor of the empire, and named in his honor. Si-o-sepol is renowned for its length and its two-tier design, consisting of 33 arches that stretch across the river. The upper level serves as a wide pedestrian walkway, while the lower level contains arches and historically housed market spaces and conduits for water.

Si-o-sepol connects Isfahan’s older quarter with newer areas along the river, functioning as both a transportation route and a social gathering place for centuries. It remains a symbolic landmark of Isfahan and one of Iran’s most photographed bridges, especially popular at sunset and as a centerpiece in the city’s historic skyline.

Over the years, the bridge has undergone restoration and maintenance to address weathering and structural concerns while preserving its historic character. Today, it continues to attract visitors and serves as a working monument that reflects Safavid urban planning and architectural achievements.