Hartshorne Reservoir Report
Nearby: Jones Oknoname 121007
Last Updated: December 6, 2025
Hartshorne is a gravity dam located in Pittsburg, Oklahoma, on the Blue Creek.
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Summary
Built in 1930, this dam has a height of 25 feet and a length of 330 feet, providing a storage capacity of 1251 acre-feet for water supply purposes. The dam is regulated by the Oklahoma Water Resources Board and undergoes regular inspections to ensure its structural integrity and operational efficiency.
Despite being classified as having a low hazard potential, Hartshorne is considered to have a very high risk, with a risk assessment rating of 1. The dam features a controlled spillway and a single valve outlet gate. While the condition assessment is currently listed as "Not Rated," the dam's emergency action plan status and risk management measures are not specified. The surrounding area has a surface area of 83 acres and a maximum discharge capacity of 69,750 cubic feet per second, indicating its importance for managing water resources in the region.
Overall, Hartshorne plays a critical role in providing water supply for the local community and is closely monitored by state regulatory agencies to ensure public safety and water resource sustainability. With its historical significance and strategic location on Blue Creek, this gravity dam serves as a vital infrastructure for managing water resources in Oklahoma.
Year Completed |
1930 |
Dam Length |
330 |
Dam Height |
25 |
River Or Stream |
BLUE CREEK |
Primary Dam Type |
Gravity |
Surface Area |
83 |
Hydraulic Height |
23 |
Nid Storage |
1251 |
Structural Height |
25 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Kiamichi River Near Clayton
|
182cfs |
Fourche Maline Near Red Oak
|
1cfs |
Canadian River Near Whitefield
|
1190cfs |
Kiamichi River Near Antlers
|
231cfs |
Canadian River At Calvin
|
361cfs |
Muddy Boggy Creek Near Farris
|
9cfs |
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.
Hartshorne