Rock Creek Dam, Iowa, USA

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Quick Facts About Rock Creek Dam

Location: Jasper, Iowa
Coordinates: 41.7381, -92.8538
River: Rock Creek River
Primary Purpose: Recreation
Type: Earth
Commissioned:
Dam Height: 33 ft (10 m)
Dam Length: 1,500 ft (457 m)
Dam Capacity: 13,700 acre-ft (16,899 Ml)
Hazard Potential: Significant
Condition Assessment: Satisfactory

Rock Creek Dam Map

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Rock Creek Dam Information

Rock Creek Dam is an earthen embankment dam located about 15 miles from Lynnville, Jasper, Iowa.

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

The dam was designed by BAUER ENGINEERING INC and commissioned in and is currently owned by Iowa Department of Natural Resources.

Rock Creek Dam Structure

The Rock Creek Dam is approximately 1,500 feet (457 m) long, 33 feet (10 m) high and has a structural volume of 0 cubic yards (0 cubic metres).

Rock Creek Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 5,500 acre-ft (6,784 Ml) and maximum capacity of 13,700 acre-ft (16,899 Ml).

The surface area of the reservoir is 640 acres (259 ha) and the total catchment area is 41 square miles (107 square kilometres).

Rock Creek Dam Spillway

The dam has a 200 feet (61 m) wide uncontrolled spillway with a maximum discharge capacity of 0 cubic feet per second (0 cubic metres per second).

Rock Creek Dam Compared to Four Famous American Dams

Rock Creek Dam
Jasper, Iowa
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) 33 730 550 357 216
Length (Ft) 1,500 1,244 5,673 6,920 1,565
Storage Volume (acre-ft) 13,700 30,237,000 9,562,000 3,540,000 29,875,000
Drainage Area (sq miles) 41 167,800 74,100 3,611 108,355

Rock Creek Dam Weather

Current Conditions at Rock Creek Dam

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7-Day Forecast for Rock Creek Dam

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Rock Creek Dam Frequently Asked Questions

In which state is the Rock Creek Dam?

Rock Creek Dam is in Iowa.

In which county is the Rock Creek Dam?

Rock Creek Dam is in Jasper County.

How high is the Rock Creek Dam?

Rock Creek Dam is 33 feet high.

How long is the Rock Creek Dam?

Rock Creek Dam is 1,500 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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