# List of dam removals in Maryland

This is a list of dams in Maryland that have been removed as physical impediments to free-flowing rivers or streams.

## Completed removals

| Dam | 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 / 39.048; -76.062﻿ (Centreville Dam) | Gravel Run | Corsica River | Mill dam owned by the Town of Centreville. |
| White Hall Dam | | 2011 | White Hall 39°37′14″N 76°37′47″W﻿ / ﻿39.6206°N 76.6297°W﻿ / 39.6206; -76.6297﻿ (White Hall Dam) | Little Falls | Gunpowder River | |
| 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 / 39.5239; -76.4441﻿ (Martin Farm Pond Dam (Overshot Branch Dam)) | Overshot Branch | Gunpowder River | |
| Clifford Branch Dam | 6 ft (1.8 m) | 2012 | Frederick 39°29′15″N 77°28′16″W﻿ / ﻿39.4874°N 77.4712°W﻿ / 39.4874; -77.4712﻿ (Clifford Branch Dam) | 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 / 38.6090; -75.8154﻿ (Puckum Dam) | 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. |
| Bloede Dam | 34 ft (10 m) | 2018 | Elkridge 39°14′49″N 76°45′40″W﻿ / ﻿39.247°N 76.7612°W﻿ / 39.247; -76.7612﻿ (Bloede Dam) | Patapsco River | Patapsco River | Hydropower dam owned by the Maryland Department of Natural Resources. |
| Simkins Dam | 10 ft (3.0 m) | 2010 | Baltimore County 39°15′10″N 76°46′06″W﻿ / ﻿39.2527°N 76.7683°W﻿ / 39.2527; -76.7683﻿ (Simkins Dam) | Patapsco River | Patapsco River | Textile mill dam owned by Simkins Industries. |
| Union Dam | 24 ft (7.3 m) | 2010 | Baltimore County 39°17′41″N 76°46′48″W﻿ / ﻿39.2946°N 76.78°W﻿ / 39.2946; -76.78﻿ (Union Dam) | Patapsco River | Patapsco River | Textile mill dam owned by the State. |
| 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 / 39.5802; -78.7444﻿ (Pittsburgh Plate & Glass (PPG) Dam) | North Branch Potomac River | Potomac River | Originally built to back up water for a pumping station. Owned by Pittsburgh Plate & Glass. |
| 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 / 39.6651; -77.5422﻿ (Raven Rock Dam) | Little Antietam Creek | Potomac River | Water supply dam for the City of Hagerstown. |
| Polly Pond Dam | 25 ft (7.6 m) | 2002 | Allegany County | Big Run | Potomac River | Located in the Chesapeake and Ohio Canal National Historical Park, the earthen dam was part of a canal waste weir. |
| Chevy Chase Lake Dam | | 1937 | Chevy Chase 38°59′41″N 77°04′23″W﻿ / ﻿38.994815°N 77.073111°W﻿ / 38.994815; -77.073111﻿ (Chevy Chase Lake Dam) | Coquelin Run | Potomac River | 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 / 38.4423; -75.1944﻿ (Bishopville Dam) | 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 / 39.7017; -76.1267﻿ (Octoraro Dam) | Octoraro Creek | Susquehanna River | |
| 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 | | |
Download coordinates as:
* KML
* GPX (all coordinates)
* GPX (primary coordinates)
* GPX (secondary coordinates)