Godfrey Jack Reservoir Report
Nearby: Godfrey Jack M Gilmore Ronald D
Last Updated: December 6, 2025
Godfrey Jack is a privately owned earth dam located in Marshall, Oklahoma, with a primary purpose of irrigation.
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Summary
Constructed in 1979, this dam stands at a height of 45 feet and has a storage capacity of 190 acre-feet. It is regulated by the Oklahoma Water Resources Board and undergoes regular inspections, with the last one conducted in November 2002. The dam has a controlled spillway and low hazard potential, but is categorized as having a very high risk due to its condition assessment being not rated.
Located on TR Glasses Creek, Godfrey Jack serves as a vital water resource for the surrounding area, providing irrigation water for agricultural purposes. The dam has a surface area of 36 acres and a normal storage capacity of 95 acre-feet. Despite its low hazard potential, the risk assessment for the dam is rated as very high, indicating the need for careful monitoring and maintenance to ensure the safety of the structure and downstream communities. The dam is equipped with a single valve outlet gate for water release.
Godfrey Jack's risk management measures and emergency action plan status are not specified in the available data. However, the dam is subject to state regulation, inspection, and enforcement by the Oklahoma Water Resources Board, ensuring that it meets safety standards and is operated responsibly. As a key component of the local water infrastructure, Godfrey Jack plays a crucial role in supporting agricultural activities and water supply in the region, highlighting the importance of sustainable water resource management and climate resilience efforts.
Year Completed |
1979 |
Dam Height |
45 |
River Or Stream |
TR GLASSES CR |
Primary Dam Type |
Earth |
Surface Area |
36 |
Hydraulic Height |
45 |
Nid Storage |
190 |
Structural Height |
45 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
45 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Washita River Near Dickson
|
317cfs |
Pennington Creek Near Reagan
|
7cfs |
Blue River Near Connerville
|
54cfs |
Red River At Denison Dam Nr Denison
|
44cfs |
Rock Creek At Sulphur
|
8cfs |
Blue River Near Blue
|
58cfs |
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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Pennington Creek Park
|
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Little Glasses Resort and Marina
|
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Lake Texoma State Park
|
Godfrey Jack