Boulder - North Dam, Colorado, USA

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Quick Facts About Boulder – North Dam

Location: Boulder, Colorado
Coordinates: 40.078339, -105.212226
River: Dry Creek River
Primary Purpose: Water Supply
Type: Earth
Commissioned: 1955
Dam Height: 44 ft (13 m)
Dam Length: 2,652 ft (808 m)
Dam Capacity: 17,700 acre-ft (21,833 Ml)
Condition Assessment: Satisfactory

Boulder – North Dam Map

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Boulder – North Dam Information

Boulder – North Dam is an earthen embankment dam located about 1 miles from Boulder, Boulder, Colorado.

The dam, which is on the Dry Creek River, was primarily built for Water Supply purposes, but also serves for Irrigation and Recreation benefits.

The dam was designed by and commissioned in 1955 and is currently owned by CITY OF BOULDER (KEVIN CLARK).

Boulder – North Dam Structure

The Boulder – North Dam is approximately 2,652 feet (808 m) long, 44 feet (13 m) high and has a structural volume of 84,000 cubic yards (64,223 cubic metres).

Boulder – North Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 13,300 acre-ft (16,405 Ml) and maximum capacity of 17,700 acre-ft (21,833 Ml).

The surface area of the reservoir is 684 acres (277 ha) and the total catchment area is 14 square miles (36 square kilometres).

Boulder – North Dam Spillway

The dam has a 1644 feet (501 m) wide uncontrolled spillway with a maximum discharge capacity of 25500 cubic feet per second (722 cubic metres per second).

Boulder – North Dam Compared to Four Famous American Dams

Boulder – North Dam
Boulder, Colorado
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) 44 730 550 357 216
Length (Ft) 2,652 1,244 5,673 6,920 1,565
Storage Volume (acre-ft) 17,700 30,237,000 9,562,000 3,540,000 29,875,000
Drainage Area (sq miles) 14 167,800 74,100 3,611 108,355

Boulder – North Dam Weather

Current Conditions at Boulder – North Dam

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7-Day Forecast for Boulder – North Dam

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Boulder – North Dam Frequently Asked Questions

In which state is the Boulder – North Dam?

Boulder – North Dam is in Colorado.

In which county is the Boulder – North Dam?

Boulder – North Dam is in Boulder County.

How high is the Boulder – North Dam?

Boulder – North Dam is 44 feet high.

How long is the Boulder – North Dam?

Boulder – North Dam is 2,652 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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