Lattawanna Reservoir Report
Nearby: Cedar Cove Lake Swain J.L.
Last Updated: January 10, 2026
Lattawanna is a privately owned earth dam located in Crescent Springs, Oklahoma.
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Summary
Built in 1965 for recreational purposes, this 24-foot tall structure holds a maximum storage capacity of 220 acre-feet and covers a surface area of 16 acres. The dam also serves as a controlled spillway with a width of 1 foot and a maximum discharge capacity of 1090 cubic feet per second.
Managed by the Oklahoma Water Resources Board, Lattawanna is categorized as having a low hazard potential with a very high risk assessment rating of 1. While the dam has not been rated for its current condition, it undergoes inspections every 5 years to ensure its safety and integrity. With a valve outlet gate and no associated locks, Lattawanna remains a crucial component in managing water resources along the TR-Cimarron River.
Enthusiasts and researchers interested in water resource management and climate change can study Lattawanna as a case study for how privately owned dams are regulated and maintained in Oklahoma. Its location in Logan County, near the confluence of the Cimarron River, offers a unique opportunity to examine the impact of dams on local ecosystems and water availability. Additionally, the dam's design and construction details provide valuable insights into earth dam technology and the importance of proper maintenance and inspection protocols to ensure public safety and environmental protection.
Year Completed |
1965 |
Dam Length |
580 |
Dam Height |
24 |
River Or Stream |
TR-CIMARRON RIVER |
Primary Dam Type |
Earth |
Surface Area |
16 |
Hydraulic Height |
24 |
Nid Storage |
220 |
Structural Height |
24 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
24 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Lattawanna