North Topsail Water & Sewer Lagoon dam
North Topsail Water & Sewer Lagoon
The North Topsail Water & Sewer Lagoon, also known as N. 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 data reference
Condition Assessment
- Satisfactory
- No 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.
- 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.
- 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.
Hazard Potential Classification
- High
- Dams 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, environmental 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.
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around North Topsail Water & Sewer Lagoon -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| New River Near Gum Branch | 26 cfs | → |
| Northeast Cape Fear River Near Chinquapin | 50 cfs | → |
| Trent River Near Trenton | 13 cfs | → |
| Cape Fear R At Lock #1 Nr Kelly | 1,490 cfs | → |
| Neuse River At Kinston | 619 cfs | → |
| Black River Near Tomahawk | 91 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near North Topsail Water & Sewer Lagoon.
Boat launches
- Island Drive, North Topsail Beach
- Fulcher Landing Road 310, Sneads Ferry
- Holiday Lane 212, Sneads Ferry
- Roland Avenue 517, Surf City
- Willis Landing Road 399, Hubert
- Riverview Street 198, Jacksonville
Campgrounds
Paddle runs
- Black Swamp Creek To Nc Hwy 1442 Bridge At Stella
- 1.25 Miles Upstream From Hwy 17 Bridge To Black Swamp Creek
- Headwaters To 1.24 River Miles Upstream From Us Hwy 17 Bridge
- West Prong From Sr 1100 To Fs Road 121-2
- East Prong From Sr 1100 To Confluence With Brice Creek
- Fs Road 121-2 To Confluence With Brice Creek
Track North Topsail Water & Sewer Lagoon in the Snoflo app
Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.
About North Topsail Water & Sewer Lagoon
Where does the data for North Topsail Water & Sewer Lagoon come from?
Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.
What does the High hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of North Topsail Water & Sewer Lagoon.