Nisbet Pond Dam 1, also known as Richard A Ashley Dam 1, is a privately owned earth dam located in Lancaster, South Carolina. Completed in 1956, this dam serves primarily for recreational purposes, with a height of 23 feet and a length of 310 feet. The dam has a storage capacity of 67 acre-feet, providing a surface area of 6 acres for water activities. The dam is situated on Todd Branch, within the Wilmington District of South Carolina.

Although Nisbet Pond Dam 1 has a low hazard potential, its condition assessment in 2017 was deemed unsatisfactory. This raises concerns about the safety and stability of the dam, especially considering its moderate risk level. The dam has state regulation, permitting, inspection, and enforcement in place by the South Carolina Department of Health and Environmental Control (DHEC). However, there is no emergency action plan (EAP) prepared, which could be crucial in the event of a dam failure or emergency situation.

Given the critical need for proper maintenance and risk management measures, Nisbet Pond Dam 1 serves as a reminder of the importance of regular inspections and upkeep to ensure the safety of water resources and surrounding communities. With its location in a recreational area and the potential impact of a dam failure, it is essential for the owners and regulatory agencies to address the unsatisfactory condition assessment and prioritize necessary actions to mitigate risks and protect the environment.