Dutch Flat Forebay
Dutch Flat Forebay is an earth dam located in Nevada County, California, built in 1966. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Dutch Flat Forebay
The primary purpose of Dutch Flat Forebay is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Nevada Irrigation District (public utility). It impounds the Dutch Flat Canal near Dutch Flat Afterbay.
The dam stands 105 feet tall and stretches 440 feet across, creates a reservoir covering 8 acres, has a maximum storage capacity of 184 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1966, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 08/02/2021.
At 105 feet, this dam is taller than 98% of all dams in the United States.
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Location
| State | California |
| County | Nevada |
| Nearest City | Dutch Flat Afterbay |
| River/Stream | Dutch Flat Canal |
| Coordinates | 39.22420, -120.83550 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 105 ft |
| Dam Height | 77 ft |
| Dam Length | 440 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 184 acre-ft |
| Max Storage | 184 acre-ft |
| Normal Storage | 162 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 610 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Nevada Irrigation District |
| Owner Type | Public Utility |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/02/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CA00258 |
| Federal ID | CA00258 |
| More Info | State Dam Safety Program |