Gall Dam Reservoir Report
Nearby: Witt Dam White Lake Dam
Last Updated: December 15, 2025
Gall Dam, located in Macon, Missouri, along the Mussel Fork River, was completed in 1994 for the primary purpose of grade stabilization.
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Summary
This private-owned dam stands at a height of 28.1 feet with a hydraulic height of 25 feet and a structural height of 27 feet. The dam is classified as an earth dam with a stone core and soil foundation, serving to control the flow of water and stabilize the surrounding area. With a low hazard potential and a moderate risk assessment rating, Gall Dam plays a crucial role in managing water resources in the region.
The dam has a storage capacity of 21 acre-feet and is used for normal storage of 16 acre-feet. Its spillway type is uncontrolled with a width of 10 feet. Gall Dam has not been rated for its condition assessment and lacks an emergency action plan. However, the risk management measures for this dam are yet to be determined, highlighting the importance of further evaluation and potential improvements to ensure its continued safety and efficiency. With a drainage area of 390.4 square miles, Gall Dam contributes significantly to water resource management in the area and remains a notable structure for water resource and climate enthusiasts.
Overall, Gall Dam serves as a vital infrastructure for grade stabilization along the Mussel Fork River in Missouri. While it has a low hazard potential, the moderate risk assessment and lack of condition assessment and emergency action plan underscore the need for continued monitoring and management. As water resource and climate enthusiasts, understanding the role of dams like Gall Dam in water management is crucial for sustainable development and environmental conservation efforts in the region.
Year Completed |
1994 |
Dam Length |
225 |
Dam Height |
28.1 |
River Or Stream |
MUSSEL FORK |
Primary Dam Type |
Earth |
Surface Area |
8 |
Hydraulic Height |
25 |
Drainage Area |
390.4 |
Nid Storage |
21 |
Structural Height |
27 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
28 |
Seasonal Comparison
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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.
Gall Dam