East Fork Grand River Dam H- 27 Reservoir Report
Last Updated: December 18, 2025
East Fork Grand River Dam H-27, located in Worth, Missouri, is a crucial piece of infrastructure designed by the USDA NRCS to mitigate flood risk in the area.
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Summary
Completed in 2002, this earth dam stands at a height of 25.4 feet, with a structural height of 29 feet and a length of 612 feet. It has a normal storage capacity of 38 acre-feet and a maximum storage capacity of 128 acre-feet, serving to protect the surrounding area from potential flooding events.
With a low hazard potential and a moderate risk assessment rating, East Fork Grand River Dam H-27 plays a vital role in managing water resources along the East Fork Grand River. The dam, made of stone core and soil foundation, features an uncontrolled spillway and outlet gates. It is operated by local government authorities and falls under the jurisdiction of the Rock Island District, with no state regulatory oversight.
Water resource and climate enthusiasts will appreciate the strategic placement and design of East Fork Grand River Dam H-27, which effectively balances flood risk reduction with environmental considerations. Despite its modest size, this dam serves as a testament to the importance of proactive infrastructure development in safeguarding communities against natural disasters. As part of the larger water management system in Missouri, this dam contributes to the overall resilience of the region in the face of changing climate patterns and potential hydrological challenges.
Year Completed |
2002 |
Dam Length |
612 |
Dam Height |
25.4 |
River Or Stream |
EAST FORK GRAND RIVER |
Primary Dam Type |
Earth |
Surface Area |
8 |
Hydraulic Height |
25 |
Drainage Area |
325.12 |
Nid Storage |
128 |
Structural Height |
29 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
29 |
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- 27