The name 'Pasaan' combines two Thai words meaning 'to mix' or 'to blend' and 'to pass', symbolizing the convergence of the four rivers.
The structure's design was inspired by the shape of the river basin where the four tributaries merge to become the Chao Phraya.
The landmark is situated on Koh Yom, a small island formed by the river sediment at the confluence.
It is engineered to serve as both a flood management observation point and a recreational space.
The building's floor plan is curved to mirror the natural trajectory of water flow through the district.
Pasaan is a modern architectural landmark located at the confluence of the Ping, Wang, Yom, and Nan rivers in Nakhon Sawan. The structure marks the official origin point of the Chao Phraya River, Thailand's primary waterway. Its curved design mimics the natural shape of converging river currents. Visitors can traverse elevated walkways that offer panoramic views of the water junction. The site functions as a public park and cultural space designed to reflect the local geography and river-based heritage. The architecture integrates steel and concrete, positioned specifically to capture river breezes and provide vantage points for sunset observation.
The highest point of the curved elevated walkway looking toward the point where the distinct river colors meet.
Bring sun protection as the elevated walkways have minimal overhead shade.
Walk the entire length of the curving ramp for varying perspectives of the river colors, which often differ due to sediment levels.
Visit during the late afternoon to experience the cooling river breeze.
Attempting to swim in the river at the confluence, as the currents are strong and unpredictable due to the four-way water meeting point.
