Quick Facts About Jennings Randolph Dam
Jennings Randolph Dam Map
Jennings Randolph Dam Information
Jennings Randolph Dam is a rockfill earth dam located in Barnum, Mineral, Maryland.
The dam, which is on the North Branch Potomac River, was primarily built for Flood Risk Reduction purposes, but also serves for Recreation and Water Supply benefits.
The dam was designed by CENAB and commissioned in 1981 and is currently owned by USACE – Baltimore District.
Jennings Randolph Dam Structure
The Jennings Randolph Dam is approximately 2,130 feet (649 m) long, 296 feet (90 m) high and has a structural volume of 10,000,000 cubic yards (7,645,550 cubic metres).
Jennings Randolph Dam Storage Capacity & Surface Area
The reservoir has a normal storage capacity of 94,700 acre-ft (116,811 Ml) and maximum capacity of 130,900 acre-ft (161,463 Ml).
The surface area of the reservoir is 965 acres (391 ha) and the total catchment area is 263 square miles (681 square kilometres).
Jennings Randolph Dam Spillway
The dam has a 242 feet (74 m) wide controlled spillway with a maximum discharge capacity of 193000 cubic feet per second (5465 cubic metres per second).
Jennings Randolph Dam Compared to Four Famous American Dams
| Jennings Randolph Dam Mineral, 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) | 296 | 730 | 550 | 357 | 216 |
| Length (Ft) | 2,130 | 1,244 | 5,673 | 6,920 | 1,565 |
| Storage Volume (acre-ft) | 130,900 | 30,237,000 | 9,562,000 | 3,540,000 | 29,875,000 |
| Drainage Area (sq miles) | 263 | 167,800 | 74,100 | 3,611 | 108,355 |
Jennings Randolph Dam Weather
Current Conditions at Jennings Randolph Dam
| Parameter | Value |
|---|---|
| Current Time | 21:19 |
| Sunrise | 05:56 |
| Sunset | 20:46 |
| Temperature (°F) | 77 |
| Feels Like (°F) | 78 |
| Cloud Coverage (%) | 0 |
| Pressure (inHg) | 1018 |
| Humidity (%) | 69 |
| Wind Speed (mph) | 5 |
| Rain (mm) | 0 |
7-Day Forecast for Jennings Randolph 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 | 69 | 86 | 90 | 1016 | 61 | 14 | 21 | WNW | 0 | - |  |
| Tue | 68 | 83 | 84 | 1017 | 51 | 14 | 25 | W | 90 | 1 |  |
| Wed | 66 | 89 | 88 | 1016 | 44 | 14 | 17 | WNW | 100 | 4 | |
| Thu | 65 | 88 | 87 | 1013 | 49 | 10 | 17 | W | 100 | 9 | |
| Fri | 66 | 87 | 85 | 1014 | 41 | 10 | 13 | WNW | 88 | 1 | |
| Sat | 67 | 92 | 91 | 1014 | 39 | 8 | 12 | W | 17 | - |  |
| Sun | 68 | 87 | 89 | 1016 | 47 | 10 | 18 | WNW | 100 | 5 | |
| Mon | 64 | 83 | 82 | 1017 | 48 | 5 | 7 | WNW | 0 | - | |
Jennings Randolph Dam Frequently Asked Questions
Jennings Randolph Dam is in Maryland.
Jennings Randolph Dam is in Mineral County.
Jennings Randolph Dam is 296 feet high.
Jennings Randolph Dam is 2,130 feet long.
More Dams in Mineral County:
Jennings Randolph DamPatterson Creek #50 Dam
Patterson Creek No.15 Dam
Santa Maria Dam
Weber Dam
More Dams in Maryland:
Brighton DamConowingo 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