Grass Valley Dam
Grass Valley Dam is an earth dam located in Washoe County, Nevada. It carries a Low hazard potential classification and has a poor condition assessment.
About Grass Valley Dam
The primary purpose of Grass Valley Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Simplot J. B. (private). It impounds the Grass Valley Creek.
The dam stands 18 feet tall and stretches 100 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 60 acre-feet, and collects water from a drainage area of 16 square miles.
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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 07/20/2022.
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Location
| State | Nevada |
| County | Washoe |
| Nearest City | None |
| River/Stream | Grass Valley Creek |
| Coordinates | 41.10659, -119.50288 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 100 ft |
Storage & Hydraulics
| NID Storage | 60 acre-ft |
| Max Storage | 60 acre-ft |
| Normal Storage | 50 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 16 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | SIMPLOT J. B. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 07/20/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NV00033 |
| Federal ID | NV00033 |
| More Info | State Dam Safety Program |