Upper Locust Creek L- 91 Reservoir Report
Last Updated: December 11, 2025
Upper Locust Creek L-91 is a local government-owned earth dam located in Putnam County, Missouri, designed by the USDA NRCS and completed in 2001.
°F
°F
mph
Wind
%
Humidity
Summary
The primary purpose of this dam is flood risk reduction, although it also serves fire protection, stock, small fish pond, fish and wildlife pond purposes. With a height of 26 feet and a length of 450 feet, the dam has a storage capacity of 99 acre-feet and covers a surface area of 5 acres. The dam is classified as low hazard potential with a moderate risk assessment rating.
Situated along the TR-Locust Creek, the Upper Locust Creek L-91 dam plays a crucial role in managing water resources in the region. Its uncontrolled spillway and outlet gates are designed to handle a maximum discharge of 151 cubic feet per second. Despite not being state regulated, inspected, or permitted, the dam has not been rated for its condition assessment. It is important for water resource and climate enthusiasts to monitor the maintenance and risk management measures associated with this dam to ensure its continued effectiveness in flood risk reduction and other purposes it serves for the local community.
Overall, Upper Locust Creek L-91 represents a vital infrastructure for water resource management in Putnam County, Missouri. With its diverse purposes and moderate risk assessment, this earth dam underscores the importance of ongoing monitoring and maintenance to ensure its long-term functionality in protecting against floods and supporting various water-related activities in the region. As climate change continues to impact water resources, the resilience and effectiveness of structures like Upper Locust Creek L-91 will be essential for sustainable water management practices.
Year Completed |
2001 |
Dam Length |
450 |
Dam Height |
26 |
River Or Stream |
TR-LOCUST CREEK |
Primary Dam Type |
Earth |
Surface Area |
5 |
Hydraulic Height |
24 |
Drainage Area |
48 |
Nid Storage |
99 |
Structural Height |
28 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
28 |
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.
Upper Locust Creek L- 91