The Shores of Calvert Upper Dam on Rivershore Drive in Dunkirk, Maryland, is a private recreational dam completed in 1972 by designers RA Barrett and Mike Rodevick.
Wind
Humidity
This earth dam stands at a height of 25 feet and has a length of 275 feet, providing a storage capacity of 50 acre-feet. Situated on the Patuxent River, the dam serves the primary purpose of recreation, offering a surface area of 7 acres for water enthusiasts to enjoy.
Despite its recreational benefits, the Shores of Calvert Upper Dam poses a significant hazard potential due to its poor condition assessment as of April 2021. The dam has undergone structural modifications in 2006 to address safety concerns, but its risk assessment remains at a moderate level. With a drainage area of 0.33 square miles and a maximum discharge capacity of 125 cubic feet per second, the dam's uncontrolled spillway and inadequate outlet gates raise concerns for potential emergencies.
Water resource and climate enthusiasts interested in the Shores of Calvert Upper Dam can appreciate its location within Calvert County, Maryland, and its proximity to the Baltimore District of the US Army Corps of Engineers. The dam is regulated by the Maryland Dam Safety agency, with state permitting, inspection, and enforcement in place to ensure public safety. Despite its challenges, the dam continues to provide recreational opportunities for local residents and visitors to enjoy the beauty of the Patuxent River.
Years Modified |
2006 - Structural |
Year Completed |
1972 |
Dam Length |
275 |
Dam Height |
25 |
River Or Stream |
Patuxent River-TR |
Primary Dam Type |
Earth |
Surface Area |
7 |
Drainage Area |
0.33 |
Nid Storage |
50 |
Outlet Gates |
Needle - 0 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
25 |
| Location | Reservations | Toilets |
|---|---|---|
Selby's Landing
|
||
Cedarville State Forest
|
||
Andrews AFB Military
|