Summary
Topsail W&S Final Clarification Pond, is a private water resource facility located in North Topsail Beach, North Carolina. Situated along Mill Creek, this lagoon is regulated by the NC Department of Environmental Quality and the Dam Safety Program, ensuring that it meets state standards for safety and operation. With a hydraulic height of 16 feet and a structural height of 18 feet, this earth dam has a maximum storage capacity of 180 acre-feet and covers a surface area of 10 acres.
Despite its high hazard potential, the North Topsail Water & Sewer Lagoon has been assessed as being in satisfactory condition as of its last inspection in September 2018. This facility plays a crucial role in water and sewer management in the area, serving as a key component of the local infrastructure. With its emergency action plan and regular inspection schedule, the lagoon is well-prepared to respond to any potential risks or incidents, ensuring the safety and security of the surrounding community. Water resource and climate enthusiasts can appreciate the importance of this lagoon in maintaining a reliable and sustainable water supply for North Topsail Beach and its residents.
Dam Length |
1000 |
River Or Stream |
Mill Creek |
Primary Dam Type |
Earth |
Surface Area |
10 |
Hydraulic Height |
16 |
Nid Storage |
180 |
Structural Height |
18 |
Hazard Potential |
High |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
New River Near Gum Branch
|
44cfs |
Northeast Cape Fear River Near Chinquapin
|
259cfs |
Trent River Near Trenton
|
19cfs |
Cape Fear R At Lock #1 Nr Kelly
|
1290cfs |
Neuse River At Kinston
|
864cfs |
Black River Near Tomahawk
|
240cfs |
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.
North Topsail Water & Sewer Lagoon
Island Drive, North Topsail Beach