Holloway Dam, Michigan, USA

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Quick Facts About Holloway Dam

Location: Genesee, Michigan
Coordinates: 43.11992, -83.4933027
River: Flint River
Primary Purpose: Recreation
Type: Gravity Earth
Commissioned: 1954
Dam Height: 38 ft (12 m)
Dam Length: 3,350 ft (1,021 m)
Dam Capacity: 29,900 acre-ft (36,881 Ml)
Condition Assessment: Satisfactory

Holloway Dam Map

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Holloway Dam Information

Holloway Dam is a gravity earth dam located about 8 miles from Genesee, Genesee, Michigan.

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

The dam was designed by and commissioned in 1954 and is currently owned by City of Flint.

Holloway Dam Structure

The Holloway Dam is approximately 3,350 feet (1,021 m) long, 38 feet (12 m) high and has a structural volume of 0 cubic yards (0 cubic metres).

Holloway Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 15,350 acre-ft (18,934 Ml) and maximum capacity of 29,900 acre-ft (36,881 Ml).

The surface area of the reservoir is 1,400 acres (567 ha) and the total catchment area is 526 square miles (1,362 square kilometres).

Holloway Dam Spillway

The dam has a 240 feet (73 m) wide controlled spillway with a maximum discharge capacity of 36200 cubic feet per second (1025 cubic metres per second).

Holloway Dam Compared to Four Famous American Dams

Holloway Dam
Genesee, Michigan
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) 38 730 550 357 216
Length (Ft) 3,350 1,244 5,673 6,920 1,565
Storage Volume (acre-ft) 29,900 30,237,000 9,562,000 3,540,000 29,875,000
Drainage Area (sq miles) 526 167,800 74,100 3,611 108,355

Holloway Dam Weather

Current Conditions at Holloway Dam

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7-Day Forecast for Holloway Dam

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Holloway Dam Frequently Asked Questions

In which state is the Holloway Dam?

Holloway Dam is in Michigan.

In which county is the Holloway Dam?

Holloway Dam is in Genesee County.

How high is the Holloway Dam?

Holloway Dam is 38 feet high.

How long is the Holloway Dam?

Holloway Dam is 3,350 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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