Summary
Clair, Alabama, specifically in the city of Morning Star. Built in 1944, National serves as a water supply structure with a primary purpose of providing water storage. The dam is classified as a Rockfill type, with a hydraulic height of 7 feet and a structural height of 12 feet. It has a maximum storage capacity of 53 acre-feet and a normal storage of 30 acre-feet. The dam is situated on TR Trout Creek and is under the jurisdiction of the Mobile District of the US Army Corps of Engineers.
Despite its age, the condition of National is currently rated as "Not Rated" with a significant hazard potential. The dam has not been inspected in recent times, and there is no Emergency Action Plan (EAP) in place. The risk assessment and management measures for the dam are also unknown. With a history dating back to the mid-20th century, National provides a glimpse into the water resource infrastructure in Alabama and the challenges faced in maintaining and monitoring older dams for safety and functionality. For water resource and climate enthusiasts, the story of National is a reminder of the importance of proper maintenance and monitoring of critical water supply structures to ensure public safety and water security in the face of changing climate conditions.
Year Completed |
1944 |
Dam Length |
300 |
River Or Stream |
TR TROUT CREEK |
Primary Dam Type |
Rockfill |
Hydraulic Height |
7 |
Nid Storage |
53 |
Structural Height |
12 |
Hazard Potential |
Significant |
Nid Height |
12 |
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.
National
Woods Bend Road 3100, Ragland