Foster No. 1 Dam 1b (2nd Enl.) Reservoir Report
Last Updated: December 5, 2025
Foster No.
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Summary
1 Dam 1b (2nd Enl.), also known as Foster No. 1 North Dam, is a private-owned structure located in Park County, Wyoming. Constructed in 1953 by designer Howard F. Bell, this earth dam stands at 25 feet high and spans 710 feet in length, serving primarily for irrigation purposes on Sage Creek. With a storage capacity of 783 acre-feet, the dam plays a crucial role in supporting agricultural activities in the region.
Despite its age, Foster No. 1 Dam 1b remains in fair condition with a low hazard potential, according to a condition assessment conducted in August 2019. The dam has no spillway and outlet gates, but it is regularly inspected every five years to ensure its structural integrity and functionality. The risk assessment for this dam indicates a moderate risk level, prompting the need for ongoing risk management measures to mitigate any potential hazards and ensure the safety of surrounding communities.
Located in a picturesque setting near the city of Byron, Foster No. 1 Dam 1b is a key piece of infrastructure that contributes to the water resource management in the area. With its historic significance and continued importance in supporting irrigation activities, this dam serves as a testament to the ingenuity and engineering prowess of its designer, Howard F. Bell. As water resource and climate enthusiasts, understanding and appreciating the role of dams like Foster No. 1 Dam 1b can help us better appreciate the intricate relationship between water management, agriculture, and sustainability in our changing climate.
Year Completed |
1953 |
Dam Length |
710 |
Dam Height |
25 |
River Or Stream |
SAGE CREEK |
Primary Dam Type |
Earth |
Surface Area |
40 |
Hydraulic Height |
20 |
Nid Storage |
783 |
Structural Height |
25 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
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.
Foster No. 1 Dam 1b (2nd Enl.)
Meeteetse Creek
South Fork Shoshone River