John Rainsford Jr Dam, located in Edgefield, South Carolina, was completed in 1997 and serves as a vital resource for fish and wildlife in the area. This private-owned Earth dam stands at 25 feet high and stretches 425 feet in length, with a storage capacity of 35 acre-feet. The dam is situated on the TR-HORN CREEK and is regulated by the South Carolina Department of Health and Environmental Control (SC DHEC).

Despite its low hazard potential, the dam's condition assessment is marked as poor as of August 2017, indicating a need for maintenance and potential improvements. The dam's emergency action plan and risk management measures are currently under evaluation, with a moderate risk assessment rating of 3. With a focus on fish and wildlife preservation, the John Rainsford Jr Dam plays a crucial role in supporting the local ecosystem while facing challenges in maintaining its structural integrity and safety protocols.