Loch Raven Dam

Loch Raven Dam Quick Facts

Location: Baltimore, Maryland
Coordinates: 39.4305, -76.5436
River: Gunpowder River
Primary Purpose: Water Supply
Type: Gravity Roller-Compacted Concrete
Commissioned: 1923
Dam Height: 130 ft (40 m)
Dam Length: 623 ft (190 m)
Dam Capacity: 145,000 acre-ft (178,855 Ml)
Condition Assessment: Satisfactory
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Loch Raven Dam Map

Loch Raven Dam Information

Loch Raven Dam is a gravity roller-compacted concrete dam located about 1 miles from Loch Raven, Baltimore, Maryland.

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

The dam was designed by Gannett Fleming (modifications) and commissioned in 1923 and is currently owned by Baltimore City DPW Reservoir Section.

Loch Raven Dam Structure

The Loch Raven Dam is approximately 623 feet (190 m) long, 130 feet (40 m) high and has a structural volume of cubic yards (0 cubic metres).

Loch Raven Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 72,700 acre-ft (89,674 Ml) and maximum capacity of 145,000 acre-ft (178,855 Ml).

The surface area of the reservoir is 2,400 acres (971 ha) and the total catchment area is 303 square miles (785 square kilometres).

Loch Raven Dam Spillway

The dam has a 288 feet (88 m) wide uncontrolled spillway with a maximum discharge capacity of 173000 cubic feet per second (4899 cubic metres per second).

Loch Raven Dam Compared to Five Famous American Dams

Height (ft)
Length (Ft)
Storage Volume (acre-ft)
Drainage Area (sq miles)
 
Loch Raven Dam
Baltimore, Maryland
Height (ft)
130
Length (Ft)
623
Storage Volume (acre-ft)
145,000
Drainage Area (sq miles)
303
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

Loch Raven Dam Weather

Current Conditions at Loch Raven Dam

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7-Day Forecast for Loch Raven Dam

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Loch Raven Dam Frequently Asked Questions

In which state is the Loch Raven Dam?

Loch Raven Dam is in Maryland.

In which county is the Loch Raven Dam?

Loch Raven Dam is in Baltimore County.

How high is the Loch Raven Dam?

Loch Raven Dam is 130 feet high.

How long is the Loch Raven Dam?

Loch Raven Dam is 623 feet long.

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More Dams in Baltimore County:

Liberty Dam
Loch Raven Dam
Prettyboy Dam

More Dams in Maryland:

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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