The reservoir dam was completed in 1964 and remains one of the largest earth-fill dams in Taiwan.
The spillway is capable of releasing up to 11,400 cubic meters of water per second during flood events.
The reservoir provides essential irrigation water to over 28,000 hectares of farmland in the Taoyuan and Hsinchu areas.
Freshwater carp, tilapia, and grass carp caught in the reservoir are central to the local 'Shimen live fish' culinary tradition.
The area contains a dedicated park specifically planted to provide intense displays of maple foliage during the autumn season.
Shimen Reservoir is a major multi-purpose water conservancy project in Taoyuan City, designed primarily for irrigation, power generation, and flood control. The reservoir area spans over 8 square kilometers, featuring a massive embankment dam that stands 133 meters tall. Visitors can explore the surrounding parkland, which is known for its seasonal floral displays, including cherry blossoms in spring and maple leaves in autumn. The site offers boat tours that navigate the reservoir's calm waters, providing views of the surrounding mountainous landscape. Camping areas are available for those wishing to extend their stay within the scenic park boundaries. A well-maintained bicycle path encircles parts of the reservoir, catering to outdoor enthusiasts. The nearby Daxi district provides access to various local culinary spots specializing in freshwater fish dishes sourced from the reservoir. It serves as a vital water source for the northern Taiwan region.
The top of the main dam embankment offering panoramic views of both the reservoir and the downstream river valley.
Visit during the weekday to avoid heavy traffic congestion on the narrow roads leading to the dam area.
Bring a light jacket, as temperatures near the water can be significantly cooler than in the surrounding city.
Check the reservoir's official website for real-time water level notices, as certain recreation areas may close during extreme weather or maintenance.
Avoid visiting during extreme typhoon warnings or heavy rainfall alerts, as the area may restrict access for safety.
Respect all posted safety barriers near the dam and spillway; do not swim in the reservoir water.
