Eldorado Canyon Dam (herman Reservoir)
Eldorado Canyon Dam (herman Reservoir) is a dam located in Lyon County, Nevada, built in 1972. It carries a High hazard potential classification.
About Eldorado Canyon Dam (herman Reservoir)
The primary purpose of Eldorado Canyon Dam (herman Reservoir) is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Doi Blm (federal). It impounds the Eldorado Canyon near Dayton.
The dam has a maximum storage capacity of 960 acre-feet. Completed in 1972, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. An emergency action plan is in place for this dam. The most recent inspection on record was 12/13/2019.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Nevada dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Nevada |
| County | Lyon |
| Nearest City | Dayton |
| River/Stream | Eldorado Canyon |
| Coordinates | 39.20422, -119.56344 |
Physical Characteristics
| Year Completed | 1972 (54 years old) |
Storage & Hydraulics
| NID Storage | 960 acre-ft |
| Max Storage | 960 acre-ft |
| Normal Storage | 670 acre-ft |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | DOI BLM |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Last Inspection | 12/13/2019 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NV00150 |
| Federal ID | NV00150 |
| More Info | State Dam Safety Program |