Reservoir N Reservoir Report
Nearby: Reservoir M Fairchild (Res F)
Last Updated: December 5, 2025
Reservoir N, located in Modoc County, California, is a federal-owned irrigation reservoir managed by the USDA Forest Service.
°F
°F
mph
Wind
%
Humidity
Summary
Completed in 1977, this earth dam stands at 7 feet high and spans 1525 feet in length, with a storage capacity of 628 acre-feet and a drainage area of 3.6 square miles. The primary purpose of Reservoir N is irrigation, making it a vital resource for local agriculture in the region.
Despite its low hazard potential, Reservoir N is classified as having a very high risk due to its condition assessment being "Not Rated." The reservoir features a controlled spillway and slide (sluice gate) outlet gates, serving as essential components for managing water flow and ensuring safety. Although the last inspection was conducted in September 2010, with an inspection frequency of 10 years, the overall risk management measures and emergency preparedness of Reservoir N remain unclear. Water resource and climate enthusiasts may find interest in further exploring the risk assessment and management strategies of this crucial infrastructure.
As a key contributor to irrigation and water supply in the region, Reservoir N plays a significant role in supporting local agriculture and water resources. With its strategic location and design, this reservoir represents a fundamental element in the water infrastructure of Modoc County, California. Understanding the operational and safety aspects of Reservoir N is essential for ensuring its continued functionality and resilience in the face of potential climate challenges and water resource management.
Year Completed |
1977 |
Dam Length |
1525 |
Dam Height |
7 |
Primary Dam Type |
Earth |
Hydraulic Height |
4 |
Drainage Area |
3.6 |
Nid Storage |
628 |
Structural Height |
7 |
Outlet Gates |
Slide (sluice gate) |
Hazard Potential |
Low |
Nid Height |
7 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Reservoir F
|
||
Reservoir F Campground
|
||
Reservoir C Campground
|
||
Reservoir C
|
||
Howard's Gulch Campground
|
||
Howards Gulch
|
Reservoir N
Sally'S Camp To Confluence With Willow Creek