Liberty Dam

Liberty Dam Quick Facts

Location: Baltimore, Maryland
Coordinates: 39.3767, -76.8908
River: North Branch, Patapsco River
Primary Purpose: Water Supply
Type: Gravity
Commissioned: 1953
Dam Height: 175 ft (53 m)
Dam Length: 704 ft (215 m)
Dam Capacity: 177,000 acre-ft (218,326 Ml)
Condition Assessment: Unsatisfactory
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Liberty Dam Map

Liberty Dam Information

Liberty Dam is a gravity dam located about 10 miles from Daniels City, Baltimore, Maryland.

The dam, which is on the North Branch, Patapsco River, was primarily built for Water Supply purposes, but also serves for Recreation benefits.

The dam was designed by Abel Wolman and commissioned in 1953 and is currently owned by Baltimore City DPW Reservoir Section.

Liberty Dam Structure

The Liberty Dam is approximately 704 feet (215 m) long, 175 feet (53 m) high and has a structural volume of cubic yards (0 cubic metres).

Liberty Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 132,000 acre-ft (162,819 Ml) and maximum capacity of 177,000 acre-ft (218,326 Ml).

The surface area of the reservoir is 3,106 acres (1,257 ha) and the total catchment area is 164 square miles (425 square kilometres).

Liberty Dam Spillway

The dam has a 480 feet (146 m) wide uncontrolled spillway with a maximum discharge capacity of 100148 cubic feet per second (2836 cubic metres per second).

Liberty Dam Compared to Five Famous American Dams

Height (ft)
Length (Ft)
Storage Volume (acre-ft)
Drainage Area (sq miles)
 
Liberty Dam
Baltimore, Maryland
Height (ft)
175
Length (Ft)
704
Storage Volume (acre-ft)
177,000
Drainage Area (sq miles)
164
Hoover Dam
Clark County, Nevada
Height (ft)
730
Length (Ft)
1,244
Storage Volume (acre-ft)
30,237,000
Drainage Area (sq miles)
167,800
Grand Coulee Dam
Okanogan County, Washington
Height (ft)
550
Length (Ft)
5,673
Storage Volume (acre-ft)
9,562,0000
Drainage Area (sq miles)
74,100
Theodore Roosevelt Dam
Maricopa County, Arizona
Height (ft)
357
Length (Ft)
1,208
Storage Volume (acre-ft)
3,411,500
Drainage Area (sq miles)
5,736
Oroville Dam
Butte County, California
Height (ft)
235
Length (Ft)
6,920
Storage Volume (acre-ft)
3,540,000
Drainage Area (sq miles)
3,611
Glen Canyon Dam
Coconino County, Arizona
Height (ft)
216
Length (Ft)
1,565
Storage Volume (acre-ft)
29,875,000
Drainage Area (sq miles)
108,355

Liberty Dam Weather

Current Conditions at Liberty Dam

Parameter Value
Current Time 19:56
Sunrise 07:22
Sunset 17:14
Temperature (°F) 15
Feels Like (°F) 15
Cloud Coverage (%) 100
Pressure (inHg) 1033
Humidity (%) 60
Wind Speed (mph) 1
Rain (mm) 0

7-Day Forecast for Liberty Dam

Day Min Temp (°F) Max Temp (°F) Feels Like (°F) Pressure (inHg) Humidity (%) Wind Speed (mph) Wind Gust (mph) Wind Dir Precip Prob (%) Precip Volume (mm) Weather
Today 5 16 4 1036 69 8 24 WNW 0 - overcast clouds
Wed 2 15 4 1036 66 10 25 NW 0 - clear sky
Thu 10 27 15 1025 69 7 19 SSW 0 - overcast clouds
Fri 17 27 16 1027 73 10 28 WNW 0 - clear sky
Sat 12 30 19 1030 71 9 26 WSW 0 - clear sky
Sun 26 36 30 1027 87 9 31 WSW 0 - overcast clouds
Mon 27 39 33 1014 85 10 31 W 0 - broken clouds
Tue 26 40 33 1009 57 14 32 WNW 0 - few clouds

Liberty Dam Frequently Asked Questions

In which state is the Liberty Dam?

Liberty Dam is in Maryland.

In which county is the Liberty Dam?

Liberty Dam is in Baltimore County.

How high is the Liberty Dam?

Liberty Dam is 175 feet high.

How long is the Liberty Dam?

Liberty Dam is 704 feet long.

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More Dams in Baltimore County:

Liberty Dam
Loch Raven Dam
Prettyboy Dam

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Brighton Dam
Conowingo Dam
Deep Creek Dam
Jennings Randolph Dam
Lake Frank Dam
Lake Linganore Dam
Lake Needwood Dam
Liberty Dam
Little Falls Dam - Potomac River
Little Seneca Dam
Loch Raven Dam
Pearce Creek Disposal Area Dam
Piney Run Dam
Potomac River Dam #4
Prettyboy Dam
Rocky Gap Dam
Savage River Dam
St Marys River Watershed Site 1 Dam
T. Howard Duckett Dam

Condition Assessment Classification

Satisfactory

No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.

Fair

No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum

Poor

A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.

Unsatisfactory

A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.

Not Rated

The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.

Not Available

Dams for which the condition assessment is restricted to approved government users.

Hazard Potential Classification

High

Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.

Significant

Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.

Low

Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner’s property.

Undetermined

Dams for which a downstream hazard potential has not been designated or is not provided.

Not Available

Dams for which the downstream hazard potential is restricted to approved government users.

Source: National Inventory of Dams

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