Summary
Built in 1958, this Earth-type dam stands at a structural height of 30 feet and has a hydraulic height of 22 feet. The dam has a normal storage capacity of 194 acre-feet and a maximum storage capacity of 264 acre-feet, serving the purpose of water resource management along the Cotton Branch river or stream.
With a significant hazard potential and a moderate risk assessment rating, Highland is subject to regular inspections, with the last one conducted in October 2018. Despite not being regulated by the state, the dam is closely monitored to ensure its structural integrity and safety. The dam's spillway is uncontrolled, and it does not have any outlet gates or associated structures. Overall, Highland plays a crucial role in managing water resources in the area and must be maintained to prevent any potential risks to the surrounding community and environment.
Year Completed |
1958 |
Dam Length |
400 |
River Or Stream |
COTTON BRANCH |
Primary Dam Type |
Earth |
Surface Area |
22 |
Hydraulic Height |
22 |
Drainage Area |
1.42 |
Nid Storage |
264 |
Structural Height |
30 |
Outlet Gates |
None |
Hazard Potential |
Significant |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Duck River At Hwy 100 At Centerville
|
1320cfs |
Buffalo River Near Flat Woods
|
313cfs |
Buffalo River Below Lobelville
|
500cfs |
Piney River At Vernon
|
92cfs |
Duck River Above Hurricane Mills
|
1730cfs |
Duck River At Columbia
|
763cfs |
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.
Highland