New Hogan Dam, California, USA

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Quick Facts About New Hogan Dam

Location: Calaveras, California
Coordinates: 38.151041, -120.813699
River: Calaveras River
Primary Purpose: Flood Risk Reduction
Type: Rockfill Earth
Commissioned: 1963
Dam Height: 155 ft (47 m)
Dam Length: 1,960 ft (597 m)
Dam Capacity: 348,598 acre-ft (429,989 Ml)
Condition Assessment: Not Available

New Hogan Dam Map

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New Hogan Dam Information

New Hogan Dam is a rockfill earth dam located about 4 miles from Jenny Lind, Calaveras, California.

The dam, which is on the Calaveras River, was primarily built for Flood Risk Reduction purposes, but also serves for Irrigation, Recreation and Hydroelectric benefits.

The dam was designed by and commissioned in 1963 and is currently owned by USACE – Sacramento District.

New Hogan Dam Structure

The New Hogan Dam is approximately 1,960 feet (597 m) long, 155 feet (47 m) high and has a structural volume of 0 cubic yards (0 cubic metres).

New Hogan Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 217,410 acre-ft (268,171 Ml) and maximum capacity of 348,598 acre-ft (429,989 Ml).

The surface area of the reservoir is 4,400 acres (1,781 ha) and the total catchment area is 363 square miles (940 square kilometres).

New Hogan Dam Spillway

The dam has a 114 feet (35 m) wide controlled spillway with a maximum discharge capacity of 106400 cubic feet per second (3013 cubic metres per second).

New Hogan Dam Compared to Four Famous American Dams

New Hogan Dam
Calaveras, California
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) 155 730 550 357 216
Length (Ft) 1,960 1,244 5,673 6,920 1,565
Storage Volume (acre-ft) 348,598 30,237,000 9,562,000 3,540,000 29,875,000
Drainage Area (sq miles) 363 167,800 74,100 3,611 108,355

New Hogan Dam Weather

Current Conditions at New Hogan Dam

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7-Day Forecast for New Hogan Dam

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New Hogan Dam Frequently Asked Questions

In which state is the New Hogan Dam?

New Hogan Dam is in California.

In which county is the New Hogan Dam?

New Hogan Dam is in Calaveras County.

How high is the New Hogan Dam?

New Hogan Dam is 155 feet high.

How long is the New Hogan Dam?

New Hogan Dam is 1,960 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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