Altemus Dam, located in Brush Valley Township, Pennsylvania, was completed in 1987 and serves a primary purpose of irrigation. The earth dam stands at a height of 30 feet and has a length of 413 feet, with a storage capacity of 29 acre-feet. Situated on the TR Brush Creek, the dam is regulated by the Pennsylvania Department of Environmental Protection and is considered to have a significant hazard potential.

Despite not being rated for its condition, Altemus Dam undergoes inspections every two years, with the last one conducted in February 2018. The dam's location in Indiana County, Pennsylvania, places it within the jurisdiction of the Pittsburgh District of the US Army Corps of Engineers. As an essential water resource infrastructure, enthusiasts of water management and climate resilience may find Altemus Dam's design and regulatory details intriguing for understanding its role in supporting agricultural irrigation in the region.