查尔汗大桥丨Bonsar Architects

Firm： Bonsar Architects

Type： Cultural › Cultural Center Transport + Infrastructure › Bridge

STATUS： Concept

SIZE： 10,000 sqft - 25,000 sqft

BUDGET： $5M - 10M

The bridges of Isfahan have historically functioned as more than passages of transit. They have served as spaces of pause, presence, and collective experience, bringing the city, its inhabitants, and water into a shared spatial framework. Today, however, the Zayandehroud River remains dry for much of the year due to prolonged water mismanagement, fundamentally challenging the bridge’s role as an active urban element. The Charkhan Bridge project emerges from this condition, rethinking the bridge as an urban space capable of operating in the absence of water.

The project’s conceptual foundation is rooted in the sectional logics of Iranian architecture, particularly in Isfahan, where intersecting axes have historically organized space, movement, and event. Spatial systems such as the Persian garden, the nine-square grid, and the chahartaq structure inform this approach. Rather than treating the chahartaq as a fixed typology, the project reinterprets it as an expandable spatial system that can develop along intersecting axes in multiple directions.

This logic is translated into a contemporary structure through a series of hexagonal pavilions, compressing multiple historical geometries into a single three-dimensional framework. The chahartaq thus evolves from a planar order into a sectional spatial system, where structure, form, and inhabitable space are integrated through a shared tectonic network.

The bridge becomes a connective sequence linking four pavilions: a northern riverside garden, two island-like pavilions within the riverbed, and a southern garden. Together, they form an interactive urban infrastructure that responds to seasonal water fluctuations, climatic conditions, and diverse patterns of human presence.

Charkhan Bridge ultimately functions as a compact museum of Iranian structural logic embedded within a living urban landscape, redefining the relationship between people, the city, and the river.