Rockdale is a private dam located in Dane County, Wisconsin, along the Koshkonong Creek. Built in 1925, this Earth-type dam stands at a height of 14 feet and has a length of 200 feet, providing a storage capacity of 590 acre-feet. With a primary purpose of recreation, Rockdale offers a surface area of 104 acres and a maximum discharge capacity of 1290 cubic feet per second.

Despite its significant hazard potential and moderate risk assessment rating, Rockdale has not been rated for its current condition. However, the dam is regulated by the Wisconsin Department of Natural Resources, with state permitting, inspection, and enforcement in place to ensure its safety and compliance with regulations. With a drainage area of 134 square miles, Rockdale plays a crucial role in managing water resources in the region.

Water resource and climate enthusiasts can appreciate the historical significance and functional importance of Rockdale as a recreational dam in Dane County. As a privately owned structure, Rockdale serves as both a leisure destination and a critical water management facility, contributing to the overall ecological health and water sustainability of the surrounding area. Its location along the Koshkonong Creek adds to its scenic charm and underscores its role in the local landscape.