Little Valley Dam
Little Valley Dam is an earth dam located in Washoe County, Nevada, built in 1912. It carries a Low hazard potential classification and has a unsatisfactory condition assessment.
About Little Valley Dam
The primary purpose of Little 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 Coleman Valley Ranch Llc (private). It impounds the Coleman Canyon Creek-tr.
The dam stands 12 feet tall and stretches 257 feet across, creates a reservoir covering 42 acres, has a maximum storage capacity of 410 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1912, the structure is over a century 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 unsatisfactory, indicating serious safety deficiencies exist that require immediate attention or remedial action. The most recent inspection on record was 06/04/2019.
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Location
| State | Nevada |
| County | Washoe |
| Nearest City | None |
| River/Stream | Coleman Canyon Creek-tr |
| Coordinates | 41.91890, -119.75385 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 257 ft |
| Year Completed | 1912 (114 years old) |
Storage & Hydraulics
| NID Storage | 410 acre-ft |
| Max Storage | 410 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 42 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 560 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | COLEMAN VALLEY RANCH LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Unsatisfactory |
| Last Inspection | 06/04/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NV00016 |
| Federal ID | NV00016 |
| More Info | State Dam Safety Program |