Black Snag Reservoir Reservoir Report
Last Updated: December 13, 2025
Black Snag Reservoir, also known as Gi Ranch Dam, is a private water resource located in Crook, Oregon.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1998, this Earth-type dam serves multiple purposes including fire protection, stock watering, fish and wildlife habitat, and recreational activities. With a storage capacity of 273 acre-feet and a surface area of 36.7 acres, the reservoir is situated on Black Snag Creek and is regulated by the Oregon Water Resources Department.
Despite its low hazard potential, Black Snag Reservoir plays a significant role in supporting the local ecosystem and providing a source of water for various activities. The dam's primary purpose as a fish and wildlife pond underscores its importance in conservation efforts and biodiversity enhancement in the region. The reservoir's location, away from downstream settlements, ensures minimal impact on human populations, while still offering recreational opportunities for visitors to enjoy.
Maintained with regular inspections and operational checks, Black Snag Reservoir is a well-managed water resource that meets moderate risk assessment standards. With a slide gate as its outlet control, the reservoir's design and construction by Newton have contributed to its functionality and efficiency. As a vital component of the local water infrastructure, this private reservoir demonstrates a commitment to sustainable water management practices and environmental stewardship in the region.
Year Completed |
1998 |
Dam Height |
38 |
River Or Stream |
BLACK SNAG CREEK |
Primary Dam Type |
Earth |
Surface Area |
36.7 |
Drainage Area |
7.66 |
Nid Storage |
273 |
Outlet Gates |
Slide (sluice gate) |
Hazard Potential |
Low |
Nid Height |
38 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
John Day River Near John Day
|
171cfs |
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 |
|---|---|---|
Doe Springs
|
||
Delintment Lake
|
||
Buck Spring .
|
Black Snag Reservoir