Located in Redwood County, Minnesota, Charlestown Twp 30 is a privately owned dam with a height of 40 feet and a hydraulic height of 26 feet. Completed in 2016 by AREA II designers, this Buttress dam spans 200 feet and has a storage capacity of 54 acre-feet. The dam is situated on Dutch Charley Creek-TR and covers a drainage area of 0.37 square miles, with a surface area of 4 acres.

Managed by the Minnesota Department of Natural Resources, Charlestown Twp 30 is regulated, permitted, inspected, and enforced by state authorities. Despite its low hazard potential and current "Not Rated" condition assessment, the dam has an inspection frequency of 8 years. With no emergency action plan in place, the dam's risk assessment, inundation maps, and risk management measures remain undeveloped, posing potential challenges in emergency situations. Overall, Charlestown Twp 30 serves as a crucial water resource infrastructure in the region, highlighting the intersection of water management, climate resilience, and regulatory oversight.