Mononame 133 Reservoir Report
Nearby: Big Lake Dam Mononame 852
Last Updated: December 5, 2025
Mononame 133, located in Crawford County, Missouri, is a private earth dam constructed in 1960 primarily for recreational purposes.
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Summary
With a height of 15 feet and a storage capacity of 56 acre-feet, this dam on TR Whittenburg Creek serves as a low hazard structure with a condition assessment of "Not Rated". Despite being privately owned and not regulated by the state, Mononame 133 provides an important source of water storage for the surrounding area, covering a surface area of 7 acres and draining an area of 150 acres.
While the dam has not been rated for its condition, its low hazard potential suggests that it poses minimal risk to the surrounding community. The lack of state jurisdiction, permitting, inspection, and enforcement also indicates a lesser degree of regulatory oversight compared to publicly owned dams. However, with no emergency action plan in place and limited data on its risk assessment and management measures, there may be room for improvements in ensuring the safety and resilience of Mononame 133 in the face of potential climate-related challenges and emergency situations. For water resource and climate enthusiasts, monitoring and enhancing the resilience of dams like Mononame 133 can be crucial in adapting to changing environmental conditions and ensuring the sustainable management of water resources for future generations.
Year Completed |
1960 |
Dam Height |
15 |
River Or Stream |
TR WHITTENBURG CREEK |
Primary Dam Type |
Earth |
Surface Area |
7 |
Drainage Area |
150 |
Nid Storage |
56 |
Structural Height |
15 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Meramec River Near Steelville
|
244cfs |
Meramec River At Cook Station
|
47cfs |
Meramec River Near Sullivan
|
522cfs |
Bourbeuse River Near High Gate
|
2cfs |
Little Piney Creek At Newburg
|
82cfs |
Big River At Irondale
|
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.
Mononame 133
State Highway 49 Bridge Near Dillard, Missouri To Forest Boundary In Sections 13/24, T38N, R3W