Arrow Canyon Detention Dam Reservoir Report
Last Updated: December 15, 2025
Arrow Canyon Detention Dam, located in Clark, Nevada, along the Pahranagat Wash, serves as a critical infrastructure for flood risk reduction.
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Summary
Built in 1933 by the Bureau of Land Management, this Federal-owned dam has a maximum storage capacity of 340 acre-feet and covers a drainage area of 28 square miles. With a high hazard potential, the dam has not been rated for its condition as of the last assessment in May 2016.
Despite its age, Arrow Canyon Detention Dam remains under the regulatory oversight of the Nevada Department of Water Resources, with regular inspections conducted by the Bureau of Land Management. The dam's last inspection took place in September 2018, with an inspection frequency of once per year. While the dam's Emergency Action Plan status and risk management measures are currently unknown, its strategic location and purpose make it a crucial component in the region's water resource and climate resilience efforts.
Water resource and climate enthusiasts can appreciate Arrow Canyon Detention Dam's historical significance and ongoing role in protecting the surrounding area from potential flooding events. As part of the larger network of water infrastructure in Nevada, this dam stands as a testament to the importance of proactive risk management and regulatory oversight in ensuring the safety and security of communities in the face of changing environmental conditions.
Year Completed |
1933 |
River Or Stream |
PAHRANAGAT WASH |
Drainage Area |
28 |
Hazard Potential |
High |
Seasonal Comparison
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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.
Arrow Canyon Detention Dam