MARYLAND RESERVOIR REPORT

Last Updated: December 29, 2025

Maryland's dams and reservoirs play a crucial role in water supply, flood control, and recreation. In recent observations, there appears to be a mix of average and below-average water surface elevations among key reservoirs. The ATKISSON RESERVOIR NEAR BEL AIR, for example, typically maintains an average level of 119.43 feet; however, the latest data indicates an unreported current level due to an apparent error (-999999), implying a potential data transmission issue as of the last observed date on December 29, 2025. Meanwhile, BLOOMINGTON LAKE NEAR ELK GARDEN, which averages 1446.66 feet, is currently at 1416 feet, and SAVAGE RIVER RESERVOIR NEAR BLOOMINGTON, with a similar average of 1446.91 feet, is slightly higher at 1420 feet.

The discrepancy in storage levels, particularly at the Bloomington Lake and Savage River Reservoir, suggests that they are experiencing below-average water levels for this time of year. Such conditions could be attributed to lower than expected snowpack levels or reduced river flows, which are crucial for replenishing reservoirs. Precipitation patterns and water usage policies could also play a role in these abnormal readings. The absence of current data for the ATKISSON RESERVOIR highlights the importance of reliable monitoring systems for effective water resource management. Cross-referencing these observations with additional data sources is advised to confirm the accuracy and to develop a comprehensive understanding of Maryland's water storage infrastructure. Such insights are vital for forecasting water availability and managing resources efficiently, especially in the face of climate variability and growing water demands.

Maryland has numerous reservoirs and dams, with the largest being Loch Raven Reservoir, Prettyboy Reservoir, and Liberty Reservoir. The streams, rivers, and creeks that provide water to these reservoirs include the Gunpowder Falls, Patapsco River, and the North Branch Potomac River. The mountains and snowpack in the western part of the state are relevant as they contribute to the streamflow in these rivers. The hydrology in the area is influenced by the Chesapeake Bay and its water levels, which are affected by tidal cycles and precipitation. In recent years, Maryland has experienced drought conditions and record low streamflow levels, leading to water restrictions and conservation efforts. Seasonal trends include higher water levels in the spring due to snowmelt and increased precipitation, followed by lower levels in the summer and fall. Overall, reservoirs and dams play an important role in providing water to Maryland's population and supporting various industries, including agriculture and tourism.

Maryland has numerous reservoirs and dams, with the largest being Loch Raven Reservoir, Prettyboy Reservoir, and Liberty Reservoir. The streams, rivers, and creeks that provide water to these reservoirs include the Gunpowder Falls, Patapsco River, and the North Branch Potomac River. The mountains and snowpack in the western part of the state are relevant as they contribute to the streamflow in these rivers. The hydrology in the area is influenced by the Chesapeake Bay and its water levels, which are affected by tidal cycles and precipitation. In recent years, Maryland has experienced drought conditions and record low streamflow levels, leading to water restrictions and conservation efforts. Seasonal trends include higher water levels in the spring due to snowmelt and increased precipitation, followed by lower levels in the summer and fall. Overall, reservoirs and dams play an important role in providing water to Maryland's population and supporting various industries, including agriculture and tourism.