Crowder Dam Reservoir Report
Nearby: Trenton Reservoir North Mononame 574
Last Updated: December 12, 2025
Crowder Dam, located in Grundy, Missouri, along the Thompson River, is a state-owned Earth dam primarily used for recreation purposes.
°F
°F
mph
Wind
%
Humidity
Summary
Completed in 1941, the dam stands at a height of 28 feet and has a storage capacity of 330 acre-feet, with a normal storage level of 235 acre-feet. The dam covers a surface area of 22 acres and serves a drainage area of 900 square miles.
Despite its low hazard potential and "Not Rated" condition assessment, Crowder Dam remains an important water resource for the region, offering recreational opportunities for locals and visitors alike. With a picturesque setting and a tranquil environment, the dam provides a serene escape for outdoor enthusiasts and climate advocates to appreciate the beauty of nature. The dam's location in Grundy County, Missouri, also adds to its appeal as a scenic spot for water-related activities.
As an integral part of the Rock Island District, Crowder Dam contributes to the overall water management efforts in the area. While not regulated by the state, the dam continues to be a valuable asset for the community, showcasing the importance of responsible water resource management in the face of climate change challenges. For water resource and climate enthusiasts, Crowder Dam represents a harmonious blend of human engineering and natural beauty, highlighting the interconnectedness of water resources and environmental sustainability.
Year Completed |
1941 |
Dam Height |
28 |
River Or Stream |
TR-THOMPSON RIVER |
Primary Dam Type |
Earth |
Surface Area |
22 |
Drainage Area |
900 |
Nid Storage |
330 |
Structural Height |
28 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
28 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Thompson River At Trenton
|
140cfs |
Medicine Creek Near Laredo
|
17cfs |
Grand River Near Gallatin
|
82cfs |
East Fork Big Creek Near Bethany
|
4cfs |
Grand River At Chillicothe
|
361cfs |
Locust Creek Near Linneus
|
27cfs |
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.
Crowder Dam