B-2 Detention Reservoir Report
Nearby: H-2 Detention H-1 Detention
Last Updated: December 5, 2025
B-2 Detention, also known as London Flats-Bouvee B-2, is a privately-owned earth dam located in Goshen County, Wyoming.
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Summary
Completed in 1962, this structure serves as a flood risk reduction measure along the Bovee Draw river. The dam stands at 52 feet in height and has a storage capacity of 871 acre-feet, with a normal storage level of 640 acre-feet.
With a fair condition assessment as of June 2017, B-2 Detention poses a low hazard potential and has a moderate risk assessment rating. The dam features an uncontrolled spillway with a width of 140 feet and a single valve outlet gate. It is inspected every 5 years to ensure its structural integrity and safety standards are maintained. Despite its age, B-2 Detention continues to effectively manage flood risks in the region, showcasing the importance of ongoing maintenance and monitoring for water resource infrastructure.
Year Completed |
1962 |
Dam Length |
1766 |
Dam Height |
52 |
River Or Stream |
BOVEE DRAW |
Primary Dam Type |
Earth |
Surface Area |
41 |
Hydraulic Height |
47 |
Nid Storage |
871 |
Structural Height |
58 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
58 |
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.
B-2 Detention