Clarence Cannon Re-Regulation Dam Reservoir Report
Last Updated: December 19, 2025
Clarence Cannon Re-Regulation Dam, also known as Salt River Dam, is a concrete structure located in Ralls, Missouri, that was completed in 1979 by the US Army Corps of Engineers.
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Summary
This dam serves multiple purposes including flood risk reduction, fish and wildlife pond, hydroelectric power generation, navigation, recreation, and water supply. With a dam height of 38 feet and a storage capacity of 8,400 acre-feet, it plays a vital role in managing water levels and mitigating flood risks in the area.
The dam is equipped with a controlled spillway and Tainter gates to regulate water flow, with a maximum discharge capacity of 12,200 cubic feet per second. Its hazard potential is considered significant, with a very high risk assessment rating. To manage these risks, the US Army Corps of Engineers continuously monitors the dam's condition, conducts regular inspections, and collaborates with local emergency managers to develop and update emergency action plans. Despite the dam's ability to store water, there is always a potential for issues during severe weather events, highlighting the importance of proactive risk management measures.
In summary, Clarence Cannon Re-Regulation Dam is a critical infrastructure that plays a key role in flood control and water management in the region. Through diligent risk assessment and management strategies, the US Army Corps of Engineers ensures the dam's structural integrity and the safety of surrounding communities.
Year Completed |
1979 |
Dam Length |
1550 |
Dam Height |
38 |
River Or Stream |
SALT RIVER |
Primary Dam Type |
Concrete |
Surface Area |
110 |
Hydraulic Height |
31 |
Drainage Area |
29 |
Nid Storage |
8400 |
Structural Height |
38 |
Outlet Gates |
Tainter (radial) - 0 |
Hazard Potential |
Significant |
Foundations |
Rock, Soil |
Nid Height |
38 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Salt River Near Center
|
57cfs |
Salt River Near New London
|
106cfs |
Lick Creek At Perry
|
2cfs |
Bear Creek At Hannibal
|
2cfs |
Spencer Cr. Bl Plum Cr. Nr Frankford
|
24cfs |
North River At Palmyra
|
17cfs |
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.
Clarence Cannon Re-Regulation Dam
Ralls County