This is a list of dams in Maryland that have been removed as physical impediments to free-flowing rivers or streams.
Dam [1] | Height | Year removed | Location | Watercourse | Watershed | Notes |
---|---|---|---|---|---|---|
Centreville Dam | 5 ft (1.5 m) | 2015 |
Centreville 39°02′53″N 76°03′43″W / 39.048°N 76.062°W |
Gravel Run | Corsica River | Mill dam owned by the Town of Centreville. [2] |
White Hall Dam | 2011 |
White Hall 39°37′14″N 76°37′47″W / 39.6206°N 76.6297°W |
Little Falls | Gunpowder River | [3] | |
Martin Farm Pond Dam (Overshot Branch Dam) | 25 ft (7.6 m) | 2019 |
Harford County 39°31′26″N 76°26′39″W / 39.5239°N 76.4441°W |
Overshot Branch | [4] | |
Clifford Branch Dam | 6 ft (1.8 m) | 2012 |
Frederick 39°29′15″N 77°28′16″W / 39.4874°N 77.4712°W |
Clifford Branch | Monocacy River | Water supply dam for the City of Frederick. |
Puckum Dam | 8 ft (2.4 m) | 2007 |
Dorchester County 38°36′32″N 75°48′55″W / 38.6090°N 75.8154°W |
Puckum Branch | Nanticoke River | The dam and culvert had supported a logging road but were washed out in June 2006. Total removal in January 2007 supported the passage of alewife, blueback herring, and perch. [5] |
Bloede Dam | 34 ft (10 m) | 2018 |
Elkridge 39°14′49″N 76°45′40″W / 39.247°N 76.7612°W |
Patapsco River | Patapsco River | Hydropower dam owned by the Maryland Department of Natural Resources. [6] |
Simkins Dam | 10 ft (3.0 m) | 2010 |
Baltimore County 39°15′10″N 76°46′06″W / 39.2527°N 76.7683°W |
Textile mill dam owned by Simkins Industries. [7] | ||
Union Dam | 24 ft (7.3 m) | 2010 |
Baltimore County 39°17′41″N 76°46′48″W / 39.2946°N 76.78°W |
Textile mill dam owned by the State. [8] | ||
Pittsburgh Plate & Glass (PPG) Dam | 10 ft (3.0 m) | 2007 |
Cumberland 39°34′49″N 78°44′40″W / 39.5802°N 78.7444°W |
North Branch Potomac River | Potomac River | Originally built to back up water for a pumping station. Owned by Pittsburgh Plate & Glass. [9] |
Raven Rock Dam | 6.5 ft (2.0 m) | 2007 |
Washington County 39°39′54″N 77°32′32″W / 39.6651°N 77.5422°W |
Little Antietam Creek | Water supply dam for the City of Hagerstown. [10] | |
Polly Pond Dam | 25 ft (7.6 m) | 2002 | Allegany County | Big Run | Located in the Chesapeake and Ohio Canal National Historical Park, the earthen dam was part of a canal waste weir. [11] | |
Chevy Chase Lake Dam | 1937 |
Chevy Chase 38°59′41″N 77°04′23″W / 38.994815°N 77.073111°W |
Coquelin Run | Dam built in 1892 to power streetcars and create a trolley park | ||
Bishopville Dam | 4 ft (1.2 m) | 2014 |
Worcester County 38°26′32″N 75°11′40″W / 38.4423°N 75.1944°W |
St. Martin River | St. Martin River | Mill dam owned by Worcester County. |
Octoraro Dam | 2005 |
Rising Sun 39°42′06″N 76°07′36″W / 39.7017°N 76.1267°W |
Octoraro Creek | Susquehanna River | [12] | |
Town Creek Dam | 5 ft (1.5 m) | |||||
Dam #3 Ruins | 6 ft (1.8 m) | 1991 | ||||
Bacon Ridge Branch Weir | 1991 | Bacon Ridge Branch | ||||
Deep Run Dam | 1989 | Deep Run | ||||
Railroad Trestle Dam | 1994 | Dorsey Run | ||||
Horsepen Branch Dam | 1995 | Horsepen Branch | ||||
Railroad Bridge at Elkton Dam | 1992 | Little Elk Creek | ||||
Stony Run Dam | 1990 | Stony Run | ||||
Route 214 Dam | 1998 | Western Branch |
This is a list of dams in Maryland that have been removed as physical impediments to free-flowing rivers or streams.
Dam [1] | Height | Year removed | Location | Watercourse | Watershed | Notes |
---|---|---|---|---|---|---|
Centreville Dam | 5 ft (1.5 m) | 2015 |
Centreville 39°02′53″N 76°03′43″W / 39.048°N 76.062°W |
Gravel Run | Corsica River | Mill dam owned by the Town of Centreville. [2] |
White Hall Dam | 2011 |
White Hall 39°37′14″N 76°37′47″W / 39.6206°N 76.6297°W |
Little Falls | Gunpowder River | [3] | |
Martin Farm Pond Dam (Overshot Branch Dam) | 25 ft (7.6 m) | 2019 |
Harford County 39°31′26″N 76°26′39″W / 39.5239°N 76.4441°W |
Overshot Branch | [4] | |
Clifford Branch Dam | 6 ft (1.8 m) | 2012 |
Frederick 39°29′15″N 77°28′16″W / 39.4874°N 77.4712°W |
Clifford Branch | Monocacy River | Water supply dam for the City of Frederick. |
Puckum Dam | 8 ft (2.4 m) | 2007 |
Dorchester County 38°36′32″N 75°48′55″W / 38.6090°N 75.8154°W |
Puckum Branch | Nanticoke River | The dam and culvert had supported a logging road but were washed out in June 2006. Total removal in January 2007 supported the passage of alewife, blueback herring, and perch. [5] |
Bloede Dam | 34 ft (10 m) | 2018 |
Elkridge 39°14′49″N 76°45′40″W / 39.247°N 76.7612°W |
Patapsco River | Patapsco River | Hydropower dam owned by the Maryland Department of Natural Resources. [6] |
Simkins Dam | 10 ft (3.0 m) | 2010 |
Baltimore County 39°15′10″N 76°46′06″W / 39.2527°N 76.7683°W |
Textile mill dam owned by Simkins Industries. [7] | ||
Union Dam | 24 ft (7.3 m) | 2010 |
Baltimore County 39°17′41″N 76°46′48″W / 39.2946°N 76.78°W |
Textile mill dam owned by the State. [8] | ||
Pittsburgh Plate & Glass (PPG) Dam | 10 ft (3.0 m) | 2007 |
Cumberland 39°34′49″N 78°44′40″W / 39.5802°N 78.7444°W |
North Branch Potomac River | Potomac River | Originally built to back up water for a pumping station. Owned by Pittsburgh Plate & Glass. [9] |
Raven Rock Dam | 6.5 ft (2.0 m) | 2007 |
Washington County 39°39′54″N 77°32′32″W / 39.6651°N 77.5422°W |
Little Antietam Creek | Water supply dam for the City of Hagerstown. [10] | |
Polly Pond Dam | 25 ft (7.6 m) | 2002 | Allegany County | Big Run | Located in the Chesapeake and Ohio Canal National Historical Park, the earthen dam was part of a canal waste weir. [11] | |
Chevy Chase Lake Dam | 1937 |
Chevy Chase 38°59′41″N 77°04′23″W / 38.994815°N 77.073111°W |
Coquelin Run | Dam built in 1892 to power streetcars and create a trolley park | ||
Bishopville Dam | 4 ft (1.2 m) | 2014 |
Worcester County 38°26′32″N 75°11′40″W / 38.4423°N 75.1944°W |
St. Martin River | St. Martin River | Mill dam owned by Worcester County. |
Octoraro Dam | 2005 |
Rising Sun 39°42′06″N 76°07′36″W / 39.7017°N 76.1267°W |
Octoraro Creek | Susquehanna River | [12] | |
Town Creek Dam | 5 ft (1.5 m) | |||||
Dam #3 Ruins | 6 ft (1.8 m) | 1991 | ||||
Bacon Ridge Branch Weir | 1991 | Bacon Ridge Branch | ||||
Deep Run Dam | 1989 | Deep Run | ||||
Railroad Trestle Dam | 1994 | Dorsey Run | ||||
Horsepen Branch Dam | 1995 | Horsepen Branch | ||||
Railroad Bridge at Elkton Dam | 1992 | Little Elk Creek | ||||
Stony Run Dam | 1990 | Stony Run | ||||
Route 214 Dam | 1998 | Western Branch |