Charles Pollock Dam Reservoir Report
Nearby: John Speck Dam Veatch Lake Dam
Last Updated: December 19, 2025
Charles Pollock Dam, located in Grundy, Missouri, is a private earth dam constructed in 1995 by the USDA NRCS for the primary purpose of grade stabilization along the TR-OWL river system.
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Summary
With a height of 33 feet and a length of 239 feet, the dam provides a low hazard potential and moderate risk assessment, with a maximum storage capacity of 17 acre-feet and a normal storage capacity of 14 acre-feet. The dam's spillway, which is uncontrolled, has a width of 12 feet and a maximum discharge rate of 31 cubic feet per second.
Despite being privately owned, Charles Pollock Dam is not regulated by the state of Missouri and does not require state permitting, inspection, or enforcement. The dam is located in a rural area, with a drainage area of 320 square miles and a surface area of 8 acres. The dam's structural height of 34 feet and hydraulic height of 31 feet contribute to its function in stabilizing the local water resources and protecting against erosion along the river.
The dam's condition assessment is currently listed as "Not Rated," indicating a lack of recent evaluation. While there is no Emergency Action Plan (EAP) in place, the dam's risk management measures are deemed sufficient for its operation. With its stone core, earth design, and soil foundation, Charles Pollock Dam stands as a vital infrastructure for water resource management and climate resilience in the region.
Year Completed |
1995 |
Dam Length |
239 |
Dam Height |
33 |
River Or Stream |
TR-OWL |
Primary Dam Type |
Earth |
Surface Area |
8 |
Hydraulic Height |
31 |
Drainage Area |
320 |
Nid Storage |
17 |
Structural Height |
34 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
34 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Thompson River At Trenton
|
111cfs |
Medicine Creek Near Laredo
|
6cfs |
Locust Creek Near Linneus
|
35cfs |
East Fork Big Creek Near Bethany
|
2cfs |
Grand River Near Gallatin
|
61cfs |
Grand River At Chillicothe
|
361cfs |
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.
Charles Pollock Dam