Sanzi Sanbanqiao Introduction
Sanban Bridge, located upstream of Datun River in Sanzhi District, New Taipei City, spans the Datun River and is constructed in three segments with stone slabs. It is hidden beneath the new "Sande Bridge," measuring approximately 18 meters in length and 1.3 meters in width. In the Qing Dynasty, it served as a vital route for the residents of Jinshan, Shimen, and Sanzhi to reach Tamsui. As transportation developed, the Taipei County (now New Taipei City) government built the new "Sande Bridge" in 1933 for easier access for vehicles and pedestrians. According to the "Sande Bridge Construction Record" next to the bridge, the bridge's body is constructed in three segments using stone slabs, hence the name "Sanban Bridge." The bridge surface can be divided into seven segments, with four spans crossing the gorge made up of three stone slabs arranged in sequence, the longest of which measures approximately 400 centimeters. The three segments of the bridge surface on the pillars are laid horizontally. The bridge's headstone columns, originally part of a wooden bridge, were damaged multiple times due to flooding, leading to its reconstruction into a stone bridge in the fourteenth year of the Tongzhi era, as evidenced by the inscriptions on the headstone columns. There are three bridge piers, built with large stones stacked to support the bridge surface using long stones with a cross-sectional size of approximately 20x25 centimeters. It also serves as the entrance to the ancient Datun River Trail in Beixinzhuang.