Mcintosh No.2 Enlargement Reservoir Report
Nearby: Mcintosh No. 1 Rock
Last Updated: December 23, 2025
Mcintosh No.2 Enlargement is a private water resource structure located in Fremont, Wyoming, along Quaking Asp Creek.
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Summary
Designed by B. Thoman, this dam stands at 41 feet high with a hydraulic height of 31 feet and a length of 1050 feet. It has a storage capacity of 217 acre-feet, with a normal storage level of 138 acre-feet, serving a drainage area of 15 square miles. The dam's spillway type is categorized as "Uncontrolled," with a width of 15 feet, and is considered to have a low hazard potential and fair condition.
Operated by the Sacramento District of the US Army Corps of Engineers, Mcintosh No.2 Enlargement has been inspected regularly, with the last assessment conducted in August 2018. Despite its moderate risk rating of 3, the dam has not undergone significant modifications or emergency action plan updates in recent years. The structure does not feature outlet gates or associated locks, but it plays a crucial role in managing water resources in the region. Water and climate enthusiasts will find this dam's design and operational details intriguing, showcasing the importance of maintaining and monitoring such critical infrastructure to ensure public safety and environmental sustainability.
Dam Length |
1050 |
Dam Height |
41 |
River Or Stream |
QUAKING ASP CREEK |
Primary Dam Type |
Other |
Surface Area |
18 |
Hydraulic Height |
31 |
Drainage Area |
15 |
Nid Storage |
217 |
Structural Height |
41 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
41 |
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.
Mcintosh No.2 Enlargement