Imp No.1 Reservoir Report
Last Updated: December 5, 2025
Imp No.1 is a private water resource structure located in Walker County, Alabama with a primary purpose of managing tailings.
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Summary
This dam stands at a height of 40 feet and has a storage capacity of 130 acre-feet. With a significant hazard potential and a moderate risk assessment rating, this structure plays a crucial role in the local water management system.
Despite not being regulated or inspected by state authorities, Imp No.1 serves an essential function in the area, especially during times of high discharge when its uncontrolled spillway comes into play. The dam is situated in a region with a relatively small drainage area of 0.08 square miles, highlighting its importance in preventing flooding and managing water flow in the surrounding area. Even though its condition assessment is listed as "Not Rated," the structure's risk management measures and emergency action plans are crucial in ensuring public safety.
Owned by a private entity, Imp No.1 may not receive the same level of oversight as publicly-owned water resource structures, but its existence is vital for the community it serves. With a capacity to store 130 acre-feet of water and a significant hazard potential, this dam plays a key role in mitigating flood risks and managing water resources in the region. As climate change continues to impact water availability and quality, structures like Imp No.1 become increasingly important in safeguarding local ecosystems and communities from water-related disasters.
Dam Height |
40 |
Drainage Area |
0.08 |
Nid Storage |
130 |
Hazard Potential |
Significant |
Nid Height |
40 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Locust Fork At Sayre
|
168cfs |
Mulberry Fork At Cordova Al
|
2820cfs |
Village Creek Near Docena
|
58cfs |
Fivemile Creek Near Republic
|
19cfs |
Village Creek Near Pratt City
|
31cfs |
Lost Creek Above Parrish
|
128cfs |
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.
Imp No.1