James Creek Diversion Dam Reservoir Report
Last Updated: December 13, 2025
James Creek Diversion Dam, located in Carlin, Nevada, is a private structure designed by SERGENT HAUSKINS & BECKWITH INC.
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Summary
and completed in 1985. This earth dam serves the primary purpose of flood risk reduction on James Creek, with additional benefits including recreation and water supply. Standing at a height of 60 feet and a hydraulic height of 150 feet, the dam spans 785 feet in length and has a storage capacity of 325 acre-feet.
Despite its critical role in flood risk reduction, the dam's condition assessment is rated as poor, with a high hazard potential. The last inspection in October 2021 revealed structural issues, leading to modifications in 1990. With a high risk assessment and limited emergency preparedness measures in place, the dam poses a potential threat to the surrounding area in case of failure. Water resource and climate enthusiasts should closely monitor developments regarding the maintenance and safety of James Creek Diversion Dam to ensure the protection of downstream communities and ecosystems.
Years Modified |
1990 - Structural |
Year Completed |
1985 |
Dam Length |
785 |
Dam Height |
60 |
River Or Stream |
JAMES CREEK |
Primary Dam Type |
Earth |
Surface Area |
17.6 |
Hydraulic Height |
150 |
Drainage Area |
15 |
Nid Storage |
325 |
Structural Height |
75 |
Outlet Gates |
Uncontrolled - 1 |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
150 |
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.
James Creek Diversion Dam