Quick Facts About Nimbus Dam
Nimbus Dam Map
Nimbus Dam Information
Nimbus Dam is a concrete gravity dam located about 3 miles from Fair Oaks, Sacramento, California.
The dam, which is on the American River, was primarily built for Fish and Wildlife Pond purposes, but also serves for Irrigation, Recreation and Hydroelectric benefits.
The dam was designed by and commissioned in 1955 and is currently owned by US Bureau of Reclamation.
Nimbus Dam Structure
The Nimbus Dam is approximately 1,093 feet (333 m) long, 87 feet (27 m) high and has a structural volume of 121,100 cubic yards (92,588 cubic metres).
Nimbus Dam Storage Capacity & Surface Area
The reservoir has a normal storage capacity of 8,800 acre-ft (10,855 Ml) and maximum capacity of 8,800 acre-ft (10,855 Ml).
The surface area of the reservoir is 540 acres (219 ha) and the total catchment area is 1,898 square miles (4,916 square kilometres).
Nimbus Dam Spillway
The dam has a 720 feet (219 m) wide controlled spillway with a maximum discharge capacity of 300000 cubic feet per second (8495 cubic metres per second).
Nimbus Dam Compared to Four Famous American Dams
| Nimbus Dam Sacramento, California |
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) | 87 | 730 | 550 | 357 | 216 |
| Length (Ft) | 1,093 | 1,244 | 5,673 | 6,920 | 1,565 |
| Storage Volume (acre-ft) | 8,800 | 30,237,000 | 9,562,000 | 3,540,000 | 29,875,000 |
| Drainage Area (sq miles) | 1,898 | 167,800 | 74,100 | 3,611 | 108,355 |
Nimbus Dam Weather
Current Conditions at Nimbus Dam
| Parameter | Value |
|---|---|
| Current Time | 19:40 |
| Sunrise | 05:39 |
| Sunset | 20:29 |
| Temperature (°F) | 96 |
| Feels Like (°F) | 94 |
| Cloud Coverage (%) | 0 |
| Pressure (inHg) | 1006 |
| Humidity (%) | 24 |
| Wind Speed (mph) | 4 |
| Rain (mm) | 0 |
7-Day Forecast for Nimbus Dam
| Day | Min Temp (°F) | Max Temp (°F) | Feels Like (°F) | Pressure (inHg) | Humidity (%) | Wind Speed (mph) | Wind Gust (mph) | Wind Dir | Precip Prob (%) | Precip Volume (mm) | Weather |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Today | 65 | 97 | 96 | 1009 | 31 | 6 | 9 | SE | 0 | - |  |
| Fri | 67 | 102 | 94 | 1008 | 16 | 10 | 15 | SW | 0 | - | |
| Sat | 62 | 103 | 92 | 1009 | 16 | 10 | 18 | SW | 0 | - | |
| Sun | 64 | 102 | 91 | 1011 | 19 | 9 | 13 | SW | 0 | - | |
| Mon | 68 | 104 | 97 | 1010 | 15 | 9 | 14 | SSW | 0 | - | |
| Tue | 67 | 103 | 97 | 1007 | 15 | 10 | 14 | SW | 0 | - | |
| Wed | 66 | 99 | 94 | 1006 | 11 | 11 | 15 | SW | 0 | - | |
| Thu | 57 | 86 | 83 | 1008 | 24 | 11 | 16 | SW | 0 | - | |
Nimbus Dam Frequently Asked Questions
Nimbus Dam is in California.
Nimbus Dam is in Sacramento County.
Nimbus Dam is 87 feet high.
Nimbus Dam is 1,093 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