Lamar Cw Reservoir Report
Nearby: Trout Edwin M Luccock Rw
Last Updated: December 18, 2025
Lamar Cw, located in McClain County, Oklahoma, is a privately owned earth dam built in 1965 along the TR-CANADIAN RIVER.
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Summary
With a height of 15 feet and a length of 350 feet, the dam has a storage capacity of 53 acre-feet and serves multiple purposes, including flood control and irrigation. Despite its low hazard potential, Lamar Cw is under state regulation by the Oklahoma Water Resources Board (OWRB) and undergoes regular inspections, with the last one conducted in July 2005.
The dam features a controlled spillway and a single outlet gate for water release, with a maximum discharge capacity of 436 cubic feet per second. Its structural design includes stone core and soil foundation, providing stability and resilience to potential hydraulic pressures. The risk assessment categorizes Lamar Cw as having a very high risk level (1), prompting the need for comprehensive risk management measures, although its overall condition assessment is currently not rated.
Lamar Cw's presence within the Tulsa District of the US Army Corps of Engineers highlights its importance in water resource management in the region. As climate change continues to impact water availability and quality, understanding and maintaining infrastructure like Lamar Cw is crucial in ensuring sustainable water management practices for the future.
Year Completed |
1965 |
Dam Length |
350 |
Dam Height |
15 |
River Or Stream |
TR-CANADIAN RIVER |
Primary Dam Type |
Earth |
Surface Area |
6 |
Hydraulic Height |
15 |
Nid Storage |
53 |
Structural Height |
15 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Canadian River At Norman
|
199cfs |
North Criner Creek Near Criner
|
1cfs |
Canadian River At Purcell
|
193cfs |
Walnut Creek At Purcell
|
28cfs |
Little River Blw Lk Thunderbird Nr Norman
|
2cfs |
Washita River At Alex
|
241cfs |
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 Cw