Terror Lake Dam, Alaska, USA

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Quick Facts About Terror Lake Dam

Location: Kodiak Island, Alaska
Coordinates: 57.652514, -153.026047
River: Terror River, Marmont Bay
Primary Purpose: Hydroelectric
Type: Rockfill
Commissioned: 1984
Dam Height: 193 ft (59 m)
Dam Length: 2,450 ft (747 m)
Dam Capacity: acre-ft (0 Ml)
Condition Assessment: Satisfactory

Terror Lake Dam Map

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

Terror Lake Dam Information

Terror Lake Dam is a rockfill dam located in None, Kodiak Island, Alaska.

The dam, which is on the Terror River, Marmont Bay, was primarily built for Hydroelectric purposes, but also serves for benefits.

The dam was designed by International Engineering Co. and commissioned in 1984 and is currently owned by Kodiak Electric Association, Inc..

Terror Lake Dam Structure

The Terror Lake Dam is approximately 2,450 feet (747 m) long, 193 feet (59 m) high and has a structural volume of 1,835,000 cubic yards (1,402,958 cubic metres).

Terror Lake Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 108,000 acre-ft (133,216 Ml) and maximum capacity of acre-ft (0 Ml).

The surface area of the reservoir is 1,000 acres (405 ha) and the total catchment area is 15 square miles (39 square kilometres).

Terror Lake Dam Spillway

The dam has a 612 feet (187 m) wide uncontrolled spillway with a maximum discharge capacity of 23100 cubic feet per second (654 cubic metres per second).

Terror Lake Dam Compared to Four Famous American Dams

Terror Lake Dam
Kodiak Island, 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) 193 730 550 357 216
Length (Ft) 2,450 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) 15 167,800 74,100 3,611 108,355

Terror Lake Dam Weather

Current Conditions at Terror Lake Dam

Parameter Value
Current Time 17:11
Sunrise 08:36
Sunset 18:16
Temperature (°F) 34
Feels Like (°F) 28
Cloud Coverage (%) 100
Pressure (inHg) 997
Humidity (%) 98
Wind Speed (mph) 8
Rain (mm) 0

7-Day Forecast for Terror Lake 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 33 35 29 999 100 8 25 E 100 5 rain and snow
Tue 31 34 34 999 100 6 14 E 100 - snow
Wed 28 33 33 993 99 6 10 ENE 44 - light snow
Thu 31 33 22 986 98 18 38 NE 100 - snow
Fri 28 33 33 987 100 6 11 NNW 100 - snow
Sat 27 32 27 988 99 6 11 N 51 - light snow
Sun 28 31 24 986 98 7 11 NNW 79 - snow
Mon 29 32 32 993 100 5 7 NW 100 - snow

Terror Lake Dam Frequently Asked Questions

In which state is the Terror Lake Dam?

Terror Lake Dam is in Alaska.

In which county is the Terror Lake Dam?

Terror Lake Dam is in Kodiak Island County.

How high is the Terror Lake Dam?

Terror Lake Dam is 193 feet high.

How long is the Terror Lake Dam?

Terror Lake Dam is 2,450 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

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