Quick Facts About Crystal Lake Dam
Crystal Lake Dam Map
Crystal Lake Dam Information
Crystal Lake Dam is a rockfill other dam located in N/A, Petersburg, Alaska.
The dam, which is on the Crystal Creek, Blind River, was primarily built for Hydroelectric purposes, but also serves for benefits.
The dam was designed by and commissioned in 1955 and is currently owned by City of Petersburg.
Crystal Lake Dam Structure
The Crystal Lake Dam is approximately 205 feet (62 m) long, 43 feet (13 m) high and has a structural volume of cubic yards (0 cubic metres).
Crystal Lake Dam Storage Capacity & Surface Area
The reservoir has a normal storage capacity of 5,200 acre-ft (6,414 Ml) and maximum capacity of 5,800 acre-ft (7,154 Ml).
The surface area of the reservoir is 233 acres (94 ha) and the total catchment area is 2 square miles (4 square kilometres).
Crystal Lake Dam Spillway
The dam has a 46 feet (14 m) wide uncontrolled spillway with a maximum discharge capacity of 2632 cubic feet per second (75 cubic metres per second).
Crystal Lake Dam Compared to Four Famous American Dams
| Crystal Lake Dam Petersburg, Alaska |
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) | 43 | 730 | 550 | 357 | 216 |
| Length (Ft) | 205 | 1,244 | 5,673 | 6,920 | 1,565 |
| Storage Volume (acre-ft) | 5,800 | 30,237,000 | 9,562,000 | 3,540,000 | 29,875,000 |
| Drainage Area (sq miles) | 2 | 167,800 | 74,100 | 3,611 | 108,355 |
Crystal Lake Dam Weather
Current Conditions at Crystal Lake Dam
Failed to fetch current weather data.7-Day Forecast for Crystal Lake Dam
Failed to fetch weather forecast data.Crystal Lake Dam Frequently Asked Questions
Crystal Lake Dam is in Alaska.
Crystal Lake Dam is in Petersburg County.
Crystal Lake Dam is 43 feet high.
Crystal Lake Dam is 205 feet long.
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Lake Connell Dam
Moose Creek Dam
Red Dog Tailings Back Dam
Red Dog Tailings Main Dam
Salmon Creek Dam
Solomon Gulch Dam
Swan Lake Dam
Terror Lake Dam
Upper Silvis 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