Pit No. 7 Diversion Dam

Pit No. 7 Diversion Dam Quick Facts

Location: Shasta, California
Coordinates: 40.8481, -121.9903
River: Pit River
Primary Purpose: Hydroelectric
Type: Concrete Gravity
Commissioned: 1965
Dam Height: 228 ft (69 m)
Dam Length: 907 ft (276 m)
Dam Capacity: 34,100 acre-ft (42,062 Ml)
Condition Assessment: Not Available
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Pit No. 7 Diversion Dam Map

Pit No. 7 Diversion Dam Information

Pit No. 7 Diversion Dam is a concrete gravity dam located about 45 miles from Redding, Shasta, California.

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

The dam was designed by and commissioned in 1965 and is currently owned by Pacific Gas and Electric Company.

Pit No. 7 Diversion Dam Structure

The Pit No. 7 Diversion Dam is approximately 907 feet (276 m) long, 228 feet (69 m) high and has a structural volume of cubic yards (0 cubic metres).

Pit No. 7 Diversion Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 34,000 acre-ft (41,938 Ml) and maximum capacity of 34,100 acre-ft (42,062 Ml).

The surface area of the reservoir is 69 acres (28 ha) and the total catchment area is square miles (0 square kilometres).

Pit No. 7 Diversion Dam Spillway

The dam has a 701 feet (214 m) wide controlled spillway with a maximum discharge capacity of 11400 cubic feet per second (323 cubic metres per second).

Pit No. 7 Diversion Dam Compared to Five Famous American Dams

Height (ft)
Length (Ft)
Storage Volume (acre-ft)
Drainage Area (sq miles)
 
Pit No. 7 Diversion Dam
Shasta, California
Height (ft)
228
Length (Ft)
907
Storage Volume (acre-ft)
34,100
Drainage Area (sq miles)
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

Pit No. 7 Diversion Dam Weather

Current Conditions at Pit No. 7 Diversion Dam

Failed to fetch current weather data.

7-Day Forecast for Pit No. 7 Diversion Dam

Failed to fetch weather forecast data.

Pit No. 7 Diversion Dam Frequently Asked Questions

In which state is the Pit No. 7 Diversion Dam?

Pit No. 7 Diversion Dam is in California.

In which county is the Pit No. 7 Diversion Dam?

Pit No. 7 Diversion Dam is in Shasta County.

How high is the Pit No. 7 Diversion Dam?

Pit No. 7 Diversion Dam is 228 feet high.

How long is the Pit No. 7 Diversion Dam?

Pit No. 7 Diversion Dam is 907 feet long.

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More Dams in Shasta County:

Haynes Reservoir Dam
Iron Canyon Dam
Keswick Dam
Mccloud Dam
Pit No. 3 Diversion Dam
Pit No. 6 Diversion Dam
Pit No. 7 Diversion Dam
Shasta Dam
Spring Creek Debris Dam
Whiskeytown Dam

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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