Jiayangtai is located on the terrace, right of the Dajia Riverbank in Heping District, Taichung City, and was the original residing place for the Atayal people of Jiayangshe. However, in the post-war period, when the Nationalist Government built the Deji Reservoir in response to the completion of the reservoir project, the rising water level flooded the original Jiayang Hamlet. Therefore, Xin (new) Jiayang was built 5 km northeast of Deji Reservoir. During the preparations for the construction of the Central Cross-Island Highway, The Executive Yuan, the Taiwan Provincial Government, the Taichung County Government, the Taiwan Electric Power Company and other units set up a special team to be responsible for the drafting, review and implementation of Xin Jiayang Village construction plan. The construction was completed in 1968 with indigenous residential houses, unit staff dormitories and public facilities.

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