70 Ranch Dam, Colorado, USA

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Quick Facts About 70 Ranch Dam

Location: Weld, Colorado
Coordinates: 40.341569, -104.42338
River: Off-Stream River
Primary Purpose: Irrigation
Type: Earth
Commissioned: 2019
Dam Height: 47 ft (14 m)
Dam Length: 8,200 ft (2,499 m)
Dam Capacity: 5,990 acre-ft (7,389 Ml)

70 Ranch Dam Map

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70 Ranch Dam Information

70 Ranch Dam is an earthen embankment dam located about 17 miles from Orchard, Weld, Colorado.

The dam, which is on the Off-Stream River, was primarily built for Irrigation purposes, but also serves for benefits.

The dam was designed by BRAD HAGEN and commissioned in 2019 and is currently owned by UNITED WATER AND SANITATION DISTRICT (DAMIANO, DRE.

70 Ranch Dam Structure

The 70 Ranch Dam is approximately 8,200 feet (2,499 m) long, 47 feet (14 m) high and has a structural volume of cubic yards (0 cubic metres).

70 Ranch Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 5,496 acre-ft (6,779 Ml) and maximum capacity of 5,990 acre-ft (7,389 Ml).

The surface area of the reservoir is 167 acres (68 ha) and the total catchment area is 3 square miles (8 square kilometres).

70 Ranch Dam Spillway

The dam has a 86 feet (26 m) wide uncontrolled spillway with a maximum discharge capacity of 688 cubic feet per second (19 cubic metres per second).

70 Ranch Dam Compared to Four Famous American Dams

70 Ranch Dam
Weld, 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) 47 730 550 357 216
Length (Ft) 8,200 1,244 5,673 6,920 1,565
Storage Volume (acre-ft) 5,990 30,237,000 9,562,000 3,540,000 29,875,000
Drainage Area (sq miles) 3 167,800 74,100 3,611 108,355

70 Ranch Dam Weather

Current Conditions at 70 Ranch Dam

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7-Day Forecast for 70 Ranch Dam

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70 Ranch Dam Frequently Asked Questions

In which state is the 70 Ranch Dam?

70 Ranch Dam is in Colorado.

In which county is the 70 Ranch Dam?

70 Ranch Dam is in Weld County.

How high is the 70 Ranch Dam?

70 Ranch Dam is 47 feet high.

How long is the 70 Ranch Dam?

70 Ranch Dam is 8,200 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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