East Fork Grand River Dam H- 48 Reservoir Report
Last Updated: December 18, 2025
East Fork Grand River Dam H- 48, located in Worth, Missouri, was completed in 2000 and serves as a crucial flood risk reduction structure along the Little Rock Creek.
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Summary
Designed by USDA NRCS, this earth dam stands at a height of 34.5 feet and has a structural height of 38 feet, with a storage capacity of 104.5 acre-feet and a normal storage of 37.1 acre-feet. The dam spans a length of 471 feet and has a spillway width of 35 feet, ensuring controlled water release during peak discharge events.
Despite being classified as a low hazard potential structure, East Fork Grand River Dam H- 48 plays a vital role in protecting the surrounding area from potential flood risks. With a moderate risk assessment rating of 3, the dam is closely monitored for any necessary maintenance or improvements. While it is not currently rated for condition assessment, the dam's emergency action plan and risk management measures ensure that it is well-prepared for any unforeseen events. Overall, East Fork Grand River Dam H- 48 stands as a testament to the importance of effective water resource management in mitigating climate-related risks in the region.
Year Completed |
2000 |
Dam Length |
471 |
Dam Height |
34.5 |
River Or Stream |
LITTLE ROCK CREEK |
Primary Dam Type |
Earth |
Surface Area |
12 |
Hydraulic Height |
34.5 |
Drainage Area |
389.76 |
Nid Storage |
104.5 |
Structural Height |
38 |
Outlet Gates |
Other Controlled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
38 |
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.
East Fork Grand River Dam H- 48