Quick Facts About Prettyboy Dam
Prettyboy Dam Map
Prettyboy Dam Information
Prettyboy Dam is a gravity dam located about 11 miles from Monkton, Baltimore, Maryland.
The dam, which is on the Gunpowder Falls River, was primarily built for Water Supply purposes, but also serves for Recreation benefits.
The dam was designed by RK&K (modif), Baltimore City DPW (Orig) and commissioned in 1936 and is currently owned by Baltimore City DPW Reservoir Section.
Prettyboy Dam Structure
The Prettyboy Dam is approximately 692 feet (211 m) long, 155 feet (47 m) high and has a structural volume of cubic yards (0 cubic metres).
Prettyboy Dam Storage Capacity & Surface Area
The reservoir has a normal storage capacity of 60,100 acre-ft (74,132 Ml) and maximum capacity of 90,100 acre-ft (111,137 Ml).
The surface area of the reservoir is 1,500 acres (607 ha) and the total catchment area is 80 square miles (207 square kilometres).
Prettyboy Dam Spillway
The dam has a 274 feet (84 m) wide uncontrolled spillway with a maximum discharge capacity of 24500 cubic feet per second (694 cubic metres per second).
Prettyboy Dam Compared to Four Famous American Dams
| Prettyboy Dam Baltimore, Maryland |
Hoover Dam Clark County, Nevada |
Grand Coulee Dam Okanogan County, Washington |
Theodore Roosevelt Dam Maricopa County, Arizona |
Glen Canyon Dam Coconino County, Arizona |
|
|---|---|---|---|---|---|
| Height (ft) | 155 | 730 | 550 | 357 | 216 |
| Length (Ft) | 692 | 1,244 | 5,673 | 6,920 | 1,565 |
| Storage Volume (acre-ft) | 90,100 | 30,237,000 | 9,562,000 | 3,540,000 | 29,875,000 |
| Drainage Area (sq miles) | 80 | 167,800 | 74,100 | 3,611 | 108,355 |
Prettyboy Dam Weather
Current Conditions at Prettyboy Dam
Failed to fetch current weather data.7-Day Forecast for Prettyboy Dam
Failed to fetch weather forecast data.Prettyboy Dam Frequently Asked Questions
Prettyboy Dam is in Maryland.
Prettyboy Dam is in Baltimore County.
Prettyboy Dam is 155 feet high.
Prettyboy Dam is 692 feet long.
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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