Lamar Lake Dam Reservoir Report
Nearby: Ed Onstott Lake Sagehorn Lake Dam
Last Updated: March 12, 2026
Lamar Lake Dam, located in Barton County, Missouri, was completed in 1955 for the primary purpose of recreation and water supply.
Summary
This earth dam stands at a height of 26 feet and has a storage capacity of 2086 acre-feet, with a normal storage level of 1050 acre-feet. The dam is situated on the TR to North Fork Spring River and is owned by the local government.
Despite its recreational benefits, Lamar Lake Dam is classified as having a high hazard potential. However, its condition assessment is currently listed as "Not Rated," suggesting that further evaluation may be needed to ensure the safety and stability of the structure. The dam does not fall under state regulation or inspection, highlighting the importance of regular monitoring and maintenance by the local government to mitigate potential risks and ensure the safety of the surrounding community and water resources.
°F
°F
mph
Wind
%
Humidity
15-Day Weather Outlook
Year Completed |
1955 |
Dam Height |
26 |
River Or Stream |
TR TO NORTH FORK SPRING RIVER |
Primary Dam Type |
Earth |
Surface Area |
150 |
Drainage Area |
3100 |
Nid Storage |
2086 |
Structural Height |
26 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
26 |
Seasonal Comparison
5-Day Hourly Forecast Detail
Nearby Streamflow Levels
East Drywood Creek At Prairie State Park
|
1cfs |
Spring River At Carthage
|
737cfs |
Spring River Near Waco
|
1210cfs |
Spring River At Larussell
|
344cfs |
Turnback Creek Above Greenfield
|
281cfs |
Marmaton River Near Nevada
|
356cfs |
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.
Lamar Lake Dam