Hearns Pond Dam, also known as Hearn and Rawlin Mill Dam, is a state-owned structure located in Sussex, Delaware.
Wind
Humidity
Completed in 1912, this gravity dam serves as a Fish and Wildlife Pond, offering recreational opportunities in addition to its primary purpose. With a height of 14 feet and a length of 580 feet, the dam holds a storage capacity of 1434 acre-feet, with a normal storage level of 1371.36 acre-feet.
Managed by the Delaware Department of Natural Resources and Environmental Control (DNREC), Hearns Pond Dam has undergone several modifications over the years to enhance its structural and hydraulic components. The dam is equipped with a controlled spillway, measuring 102 feet in width, and features two vertical lift outlet gates for water release. Despite its satisfactory condition assessment as of November 2020, the dam is classified with a high hazard potential and a very high risk level, warranting ongoing risk management measures.
Located on the Clear Brook stream, Hearns Pond Dam plays a crucial role in water resource management and wildlife conservation in the area. Its inspection, maintenance, and emergency action plan preparedness are essential to ensuring public safety and environmental protection. With its rich history and significance, the dam stands as an important landmark in the water infrastructure of Delaware, serving both practical and recreational purposes for the community.
Years Modified |
2002 - Structural, 2006 - Hydraulic, 2006 - Structural, 2017 - Hydraulic, 2017 - Structural |
Year Completed |
1912 |
Dam Length |
580 |
Dam Height |
14 |
River Or Stream |
CLEAR BROOK |
Primary Dam Type |
Gravity |
Surface Area |
24.47 |
Drainage Area |
12.83 |
Nid Storage |
1434 |
Outlet Gates |
Vertical Lift - 2 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
14 |