Nello L Teer Co is a privately-owned dam located in Morgan Township, Greene, Pennsylvania. Completed in 1980, this earth dam stands at a height of 18 feet and has a length of 195 feet, creating a reservoir with a storage capacity of 18 acre-feet. The dam regulates the flow of the South Fork Tenmile Creek, serving a critical role in managing water resources in the area.

The Pennsylvania Department of Environmental Protection oversees the regulation, inspection, and enforcement of safety standards at Nello L Teer Co. The dam has been classified as having a significant hazard potential, but its condition assessment is deemed satisfactory as of the last inspection in July 2019. The dam has a history of modifications, with hydraulic improvements made in 2014 to enhance its functionality and safety measures.

Water resource and climate enthusiasts will be interested in the role of Nello L Teer Co in water management and flood control along the South Fork Tenmile Creek. The dam's design, construction, and regulatory oversight by state agencies highlight the importance of maintaining infrastructure to ensure public safety and water security. As climate change continues to impact precipitation patterns and water availability, monitoring and maintaining dams like Nello L Teer Co will be essential for resilient water resource management in Pennsylvania.