Helloms Reservoir Report
Nearby: John Groendyke Oknoname 047007
Last Updated: December 14, 2025
Helloms is a private dam located in Garfield County, Oklahoma, specifically in the city of Kremlin.
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Summary
Built in 1950, Helloms serves the primary purpose of flood risk reduction along Sand Creek. Standing at 20 feet tall with a length of 650 feet, the dam has a storage capacity of 400 acre-feet and a normal storage level of 54 acre-feet.
Managed by the Oklahoma Water Resources Board, Helloms is regulated, inspected, and enforced by the state. The dam features an earth core with stone foundations and a controlled spillway. Despite being classified as "undetermined" in terms of hazard potential, risk assessment categorizes Helloms as having a very high risk level. The last inspection of the dam was conducted in August 2006, and its condition is currently not rated.
For water resource and climate enthusiasts, Helloms presents an intriguing case study in flood risk reduction infrastructure in Oklahoma. With its unique design and historical significance, the dam serves as a critical asset in protecting the surrounding area from potential flooding events. Ongoing state regulation and inspection ensure the safety and effectiveness of Helloms in managing water flow along Sand Creek.
Year Completed |
1950 |
Dam Length |
650 |
Dam Height |
20 |
River Or Stream |
SAND CREEK |
Primary Dam Type |
Earth |
Surface Area |
6 |
Hydraulic Height |
20 |
Nid Storage |
400 |
Structural Height |
20 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Undetermined |
Foundations |
Soil |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Skeleton Creek At Enid
|
7cfs |
Skeleton Creek Near Lovell
|
26cfs |
Salt Fork Arkansas River At Tonkawa
|
485cfs |
Cimarron River Near Dover
|
312cfs |
Chikaskia River Near Blackwell
|
226cfs |
Cimarron River Near Guthrie
|
453cfs |
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.
Helloms