Green Lake Dam, Alaska, USA

Home / USA / Alaska / Green Lake Dam

Quick Facts About Green Lake Dam

Location: Sitka, Alaska
Coordinates: 56.987588, -135.109215
River: Vodopad River
Primary Purpose: Hydroelectric
Type: Arch
Commissioned: 1982
Dam Height: 210 ft (64 m)
Dam Length: 462 ft (141 m)
Dam Capacity: acre-ft (0 Ml)
Condition Assessment: Satisfactory

Green Lake Dam Map

Here is a map of Green Lake Dam with satellite imagery. You can zoom in and out, toggle full screen mode and even enter street view directly from the map.

Green Lake Dam Information

Green Lake Dam is an arch dam located about 12 miles from None, Sitka, Alaska.

The dam, which is on the Vodopad River, was primarily built for Hydroelectric purposes, but also serves for Recreation benefits.

The dam was designed by RW BECK & ASSOC. and commissioned in 1982 and is currently owned by City and Borough of Sitka.

Green Lake Dam Structure

The Green Lake Dam is approximately 462 feet (141 m) long, 210 feet (64 m) high and has a structural volume of 0 cubic yards (0 cubic metres).

Green Lake Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 94,000 acre-ft (115,947 Ml) and maximum capacity of acre-ft (0 Ml).

The surface area of the reservoir is 1,120 acres (453 ha) and the total catchment area is 28 square miles (73 square kilometres).

Green Lake Dam Spillway

The dam spillway has a maximum discharge capacity of 12800 cubic feet per second (362 cubic metres per second).

Green Lake Dam Compared to Four Famous American Dams

Green Lake Dam
Sitka, 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) 210 730 550 357 216
Length (Ft) 462 1,244 5,673 6,920 1,565
Storage Volume (acre-ft) 30,237,000 9,562,000 3,540,000 29,875,000
Drainage Area (sq miles) 28 167,800 74,100 3,611 108,355

Green Lake Dam Weather

Current Conditions at Green Lake Dam

Failed to fetch current weather data.

7-Day Forecast for Green Lake Dam

Failed to fetch weather forecast data.

Green Lake Dam Frequently Asked Questions

In which state is the Green Lake Dam?

Green Lake Dam is in Alaska.

In which county is the Green Lake Dam?

Green Lake Dam is in Sitka County.

How high is the Green Lake Dam?

Green Lake Dam is 210 feet high.

How long is the Green Lake Dam?

Green Lake Dam is 462 feet long.

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

Generated by MPG