Lake Lotawana Sediment Pond Dam Reservoir Report

Last Updated: December 8, 2025

The Lake Lotawana Sediment Pond Dam, located in Jackson County, Missouri, is a privately owned structure designed by Larkin Lamp Rynearson to manage sediment in the Lake Lotawana offstream.


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Summary

With a height of 34 feet and a length of 2800 feet, the dam has a storage capacity of 190 acre-feet, ensuring the preservation of the surrounding 7.6-acre surface area. The dam is primarily constructed using buttress and stone core types, creating a sturdy structure that withstands the test of time.

Despite not being state regulated, the Lake Lotawana Sediment Pond Dam is classified as having significant hazard potential, with a moderate risk assessment rating. The dam features an uncontrolled spillway type with valve outlet gates for emergency water release. It is important for water resource and climate enthusiasts to monitor the condition of the dam closely, as the last inspection date and condition assessment are not rated. With its strategic location and vital role in managing sediment in the Lake Lotawana area, the dam serves as a crucial asset in maintaining the ecological balance of the region.

Dam Length

2800

Dam Height

34

River Or Stream

LAKE LOTAWANA OFFSTREAM

Surface Area

7.6

Hydraulic Height

34

Drainage Area

7.6

Nid Storage

190

Structural Height

34

Outlet Gates

Valve

Hazard Potential

Significant

Foundations

Unlisted/Unknown

Nid Height

34
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.