Scoggins Dam

Scoggins Dam Quick Facts

Location: Washington, Oregon
Coordinates: 45.4716, -123.2002
River: Scoggins Creek River
Primary Purpose: Irrigation
Type: Earth
Commissioned: 1974
Dam Height: 151 ft (46 m)
Dam Length: 2,700 ft (823 m)
Dam Capacity: 62,540 acre-ft (77,142 Ml)
Condition Assessment: Not Available
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Scoggins Dam Map

Scoggins Dam Information

Scoggins Dam is an earthen embankment dam located about 8 miles from Forest Grove, Washington, Oregon.

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

The dam was designed by and commissioned in 1974 and is currently owned by US Bureau of Reclamation.

Scoggins Dam Structure

The Scoggins Dam is approximately 2,700 feet (823 m) long, 151 feet (46 m) high and has a structural volume of 4,000,000 cubic yards (3,058,220 cubic metres).

Scoggins Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 59,910 acre-ft (73,898 Ml) and maximum capacity of 62,540 acre-ft (77,142 Ml).

The surface area of the reservoir is 1,157 acres (468 ha) and the total catchment area is 41 square miles (106 square kilometres).

Scoggins Dam Spillway

The dam has a 38 feet (12 m) wide controlled spillway with a maximum discharge capacity of 14030 cubic feet per second (397 cubic metres per second).

Scoggins Dam Compared to Five Famous American Dams

Height (ft)
Length (Ft)
Storage Volume (acre-ft)
Drainage Area (sq miles)
 
Scoggins Dam
Washington, Oregon
Height (ft)
151
Length (Ft)
2,700
Storage Volume (acre-ft)
62,540
Drainage Area (sq miles)
41
Hoover Dam
Clark County, Nevada
Height (ft)
730
Length (Ft)
1,244
Storage Volume (acre-ft)
30,237,000
Drainage Area (sq miles)
167,800
Grand Coulee Dam
Okanogan County, Washington
Height (ft)
550
Length (Ft)
5,673
Storage Volume (acre-ft)
9,562,0000
Drainage Area (sq miles)
74,100
Theodore Roosevelt Dam
Maricopa County, Arizona
Height (ft)
357
Length (Ft)
1,208
Storage Volume (acre-ft)
3,411,500
Drainage Area (sq miles)
5,736
Oroville Dam
Butte County, California
Height (ft)
235
Length (Ft)
6,920
Storage Volume (acre-ft)
3,540,000
Drainage Area (sq miles)
3,611
Glen Canyon Dam
Coconino County, Arizona
Height (ft)
216
Length (Ft)
1,565
Storage Volume (acre-ft)
29,875,000
Drainage Area (sq miles)
108,355

Scoggins Dam Weather

Current Conditions at Scoggins Dam

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7-Day Forecast for Scoggins Dam

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Scoggins Dam Frequently Asked Questions

In which state is the Scoggins Dam?

Scoggins Dam is in Oregon.

In which county is the Scoggins Dam?

Scoggins Dam is in Washington County.

How high is the Scoggins Dam?

Scoggins Dam is 151 feet high.

How long is the Scoggins Dam?

Scoggins Dam is 2,700 feet long.

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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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