Quick Facts About Blackwood Creek 11-A Dam
Blackwood Creek 11-A Dam Map
Blackwood Creek 11-A Dam Information
Blackwood Creek 11-A Dam is an earthen embankment dam located about 45 miles from Mccook, Hayes, Nebraska.
The dam, which is on the Blackwood Creek River, was primarily built for Flood Risk Reduction purposes, but also serves for benefits.
The dam was designed by USDA NRCS and commissioned in 1992 and is currently owned by Middle Republican Natural Resources District.
Blackwood Creek 11-A Dam Structure
The Blackwood Creek 11-A Dam is approximately 1,070 feet (326 m) long, 59 feet (18 m) high and has a structural volume of 137,445 cubic yards (105,084 cubic metres).
Blackwood Creek 11-A Dam Storage Capacity & Surface Area
The reservoir has a normal storage capacity of 115 acre-ft (142 Ml) and maximum capacity of 6,050 acre-ft (7,463 Ml).
The surface area of the reservoir is 22 acres (9 ha) and the total catchment area is 61 square miles (159 square kilometres).
Blackwood Creek 11-A Dam Spillway
The dam spillway has a maximum discharge capacity of 5920 cubic feet per second (168 cubic metres per second).
Blackwood Creek 11-A Dam Compared to Four Famous American Dams
| Blackwood Creek 11-A Dam Hayes, Nebraska |
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) | 59 | 730 | 550 | 357 | 216 |
| Length (Ft) | 1,070 | 1,244 | 5,673 | 6,920 | 1,565 |
| Storage Volume (acre-ft) | 6,050 | 30,237,000 | 9,562,000 | 3,540,000 | 29,875,000 |
| Drainage Area (sq miles) | 61 | 167,800 | 74,100 | 3,611 | 108,355 |
Blackwood Creek 11-A Dam Weather
Current Conditions at Blackwood Creek 11-A Dam
Failed to fetch current weather data.7-Day Forecast for Blackwood Creek 11-A Dam
Failed to fetch weather forecast data.Blackwood Creek 11-A Dam Frequently Asked Questions
Blackwood Creek 11-A Dam is in Nebraska.
Blackwood Creek 11-A Dam is in Hayes County.
Blackwood Creek 11-A Dam is 59 feet high.
Blackwood Creek 11-A Dam is 1,070 feet long.
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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