Speedwell Forge is a state-owned recreational water resource located in Lancaster, Pennsylvania, along Hammer Creek. The dam, completed in 1966, stands at a height of 35 feet and spans 950 feet, with a storage capacity of 2,372 acre-feet and a normal storage of 970 acre-feet. The dam serves primarily for recreation purposes and is regulated by the Pennsylvania Department of Environmental Protection.

Despite its satisfactory condition assessment, Speedwell Forge poses a high hazard potential, necessitating regular inspections and enforcement by state authorities. The dam's location in Elizabeth Township adds to its importance as a water resource and recreational area in the region. With a surface area of 106 acres and a drainage area of 24.1 square miles, the dam plays a crucial role in managing water flow and storage in the area.

Water resource and climate enthusiasts interested in Speedwell Forge will find a captivating mix of environmental factors, recreational opportunities, and regulatory oversight at this state-owned earth dam. Its historical significance, high hazard potential, and state-regulated status make it a compelling site for exploration and study in the world of water resource management and climate resilience.