The multi-purpose dam provides benefits of flood control, water supply and hydroelectric power generation.

The 72 m (236 ft) high rock-fill dam has a central clay core and has created a reservoir with storage of 1,490,000,000 m3 (1,207,963 acre⋅ft).

[6] The river is joined by five major tributaries and exhibits a dendritic (in the form of branches of a tree) drainage pattern.

[6][7] There is scenic road on the entire periphery of the lake where Hyeonamsa Temple, and Munuihyanggyo Confucian School are located.

[7][5] The water supply from the reservoir is provided to Chungcheong, Daejeon, Cheongju, Jeollabuk-do areas which include Gunsan, Jeonju, and Iksan.

[4][8] Nutrient loading (contribution to Eutrophication) of the reservoir has occurred due to agricultural flows and from livestock farms in the catchment.