Snyner-Westhaver is a private earth dam located in Cumberland, Pennsylvania, with a primary purpose of irrigation along the TR Yellow Breeches Creek. The dam, completed in 1979, stands at a height of 18 feet and has a storage capacity of 79 acre-feet. With a drainage area of 1.07 square miles and a surface area of 11 acres, Snyner-Westhaver plays a crucial role in water resource management in the region.

Managed by the Pennsylvania Department of Environmental Protection, Snyner-Westhaver is regulated, permitted, inspected, and enforced by state authorities to ensure its safety and functionality. The dam has a low hazard potential and has not been rated for its condition assessment. Despite not having an Emergency Action Plan in place, Snyner-Westhaver continues to serve as a vital infrastructure for irrigation purposes in the area. As a significant part of the local water resource system, the dam's role in managing water flow and storage is essential for climate resilience and agricultural sustainability in the region.

The location of Snyner-Westhaver in South Middleton Township, along with its association with the Baltimore District of the US Army Corps of Engineers, underscores the collaborative efforts in ensuring the safety and efficiency of the dam. With a focus on irrigation and water management, Snyner-Westhaver stands as a testament to the intersection of water resources, climate adaptation, and infrastructure development, highlighting the importance of sustainable water practices in the face of changing climate patterns.