Back then, many of Taiwan's rivers had yet to silt up, and goods being shipped in from the mainland went upstream to inland ports, such as Taoyuan's Tahsi and Taipei County's Hsinchuang and Wanhua.
當時尚未淤積的河道，將從大陸海運而來的物資，溯河而上運抵現今的桃園大溪及北縣新莊、萬華等內陸的港市。