Callahan Creek Watershed B-1 Reservoir Report
Last Updated: December 18, 2025
Callahan Creek Watershed B-1, located in Boone County, Missouri, is a crucial flood risk reduction structure managed by the local government with design input from the USDA NRCS.
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Summary
Completed in 1967, this earth dam stands at a height of 26 feet and stretches for 700 feet, providing storage capacity of 188 acre-feet for flood control purposes. The dam serves the primary purpose of flood risk reduction for the surrounding area, particularly along the TR-Callahan Creek.
With a low hazard potential and a moderate risk assessment rating of 3, Callahan Creek Watershed B-1 plays a significant role in managing water resources in the region. This uncontrolled spillway structure has a maximum discharge capacity of 715 cubic feet per second and covers a drainage area of 230.4 square miles. Although the dam's condition is currently rated as "Not Rated," its strategic location and design make it a valuable asset in mitigating flood risks and ensuring water resource management in the area. For water resource and climate enthusiasts, the data on Callahan Creek Watershed B-1 offers insights into how infrastructure plays a key role in safeguarding communities from potential water-related hazards.
Year Completed |
1967 |
Dam Length |
700 |
Dam Height |
26 |
River Or Stream |
TR-CALLAHAN CREEK |
Primary Dam Type |
Earth |
Surface Area |
6 |
Hydraulic Height |
26 |
Drainage Area |
230.4 |
Nid Storage |
188 |
Structural Height |
26 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
26 |
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.
Callahan Creek Watershed B-1