Quick Facts About Pony Creek – Upper Dam
Pony Creek – Upper Dam Map
Pony Creek – Upper Dam Information
Pony Creek – Upper Dam is an earthen embankment dam located about 2 miles from North Bend, Coos, Oregon.
The dam, which is on the Pony Creek River, was primarily built for Water Supply purposes, but also serves for benefits.
The dam was designed by URS and commissioned in 2001 and is currently owned by COOS BAY – NORTH BEND WATER BOARD.
Pony Creek – Upper Dam Structure
The Pony Creek – Upper Dam is approximately 380 feet (116 m) long, 77 feet (23 m) high and has a structural volume of 100 cubic yards (76 cubic metres).
Pony Creek – Upper Dam Storage Capacity & Surface Area
The reservoir has a normal storage capacity of 6,245 acre-ft (7,703 Ml) and maximum capacity of 1,680 acre-ft (2,072 Ml).
The surface area of the reservoir is 273 acres (110 ha) and the total catchment area is 3 square miles (7 square kilometres).
Pony Creek – Upper Dam Spillway
The dam spillway has a maximum discharge capacity of 1700 cubic feet per second (48 cubic metres per second).
Pony Creek – Upper Dam Compared to Four Famous American Dams
| Pony Creek – Upper Dam Coos, Oregon |
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) | 77 | 730 | 550 | 357 | 216 |
| Length (Ft) | 380 | 1,244 | 5,673 | 6,920 | 1,565 |
| Storage Volume (acre-ft) | 1,680 | 30,237,000 | 9,562,000 | 3,540,000 | 29,875,000 |
| Drainage Area (sq miles) | 3 | 167,800 | 74,100 | 3,611 | 108,355 |
Pony Creek – Upper Dam Weather
Current Conditions at Pony Creek – Upper Dam
Failed to fetch current weather data.7-Day Forecast for Pony Creek – Upper Dam
Failed to fetch weather forecast data.Pony Creek – Upper Dam Frequently Asked Questions
Pony Creek – Upper Dam is in Oregon.
Pony Creek – Upper Dam is in Coos County.
Pony Creek – Upper Dam is 77 feet high.
Pony Creek – Upper Dam is 380 feet long.
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Errol DamFirst Conn Lake South Bay Dike
First Connecticut Lake Dam
Lay Dam
Murphy Dam
Pony Creek - Upper Dam
Second Connecticut Lake Dam
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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