Cowlitz Falls Dam is a 70 megawatt hydroelectric dam in Lewis County, Washington.

[1] Its reservoir, Lake Scanewa, is located at the confluence of the Cowlitz River and Cispus River downstream of Randle, Washington with a surface area of about 700 acres.

The lake is accessible by way of the Cowlitz Falls Park, a day use area situated near the junction with the Cispus River.

[2] The Cowlitz Falls Project impounds the Cowlitz River and produces on average 260 gigawatt hours annually for the local public utility, the Lewis County Public Utility District, or about one-third of its annual electrical needs.

[1] The facility was developed jointly with the Bonneville Power Administration, and the BPA bears the direct cost of operating and maintaining the dam.