Summit Development Reservoir Report

Last Updated: December 13, 2025

Summit Development, Pond N10 is a privately owned dam located in Washington County, Utah, designed for flood risk reduction.


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Summary

The dam is regulated by the Utah Division of Water Rights and is subject to state permitting, inspection, and enforcement. With a structural height of 15 feet and a dam length of 332 feet, Pond N10 has a storage capacity of 6.84 acre-feet and serves a drainage area of 0.38 square miles. The dam has a significant hazard potential and has not been rated for its condition.

Although the specific year of completion is unknown, Summit Development, Pond N10 features an earth dam type and serves the primary purpose of flood risk reduction. The dam has a spillway width of 25 feet and a maximum discharge of 14.88 cubic feet per second. It has not been modified in recent years and does not have an Emergency Action Plan (EAP) prepared or updated. The dam is not managed by the US Army Corps of Engineers (USACE) and has not undergone a formal risk assessment or implementation of risk management measures.

Water resource and climate enthusiasts interested in the Summit Development, Pond N10 dam can appreciate its role in mitigating flood risks in the region. The dam's location, structural specifications, and regulatory oversight provide insights into its importance for water management in Washington County, Utah. Further assessment of the dam's condition, emergency preparedness, and risk management practices could enhance understanding of its overall effectiveness in safeguarding the surrounding areas from potential flooding events.

Dam Length

332

Primary Dam Type

Earth

Drainage Area

0.38

Nid Storage

6.84

Structural Height

15

Hazard Potential

Significant

Nid Height

15
       
Seasonal Comparison

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Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.