Ma'an Dam

The Ma'an Dam (, 'Saddle Dam') is a concrete gravity barrage dam on the Dajia River in Heping District, Taichung, Taiwan. The dam is the final stage of a cascade of hydroelectric power plants along the Dajia River and is located below the Tienlun Dam.

Built from 1992 to 1998, the dam is 16.3 m high and 229.5 m long, storing up to 965000 m3 in its reservoir. The service spillway of the dam consists of nine gates with a combined capacity of 6380 m3/s.

The dam supplies water through a tunnel to a 133.47 MW power station near Xinshe with two 66.735 MW turbines, generating 410.2 million kilowatt hours per year.