Dam Report

Aycock Millpond Dam dam

North Carolina, USA Great Swamp Hazard High
Today high
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Tonight low
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Dam height
12ft
Hazard rating
High
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Aycock Millpond Dam -- None dam
Aycock Millpond Dam None · Great Swamp
About this dam

Aycock Millpond Dam

Aycock Millpond Dam, also known as Sasser Millpond Dam, is a privately owned structure located in Snow Hill, North Carolina. Built in 1880, this earth dam stands at a hydraulic height of 8.5 feet and a structural height of 12 feet, with a length of 350 feet. The dam serves primarily for recreational purposes, offering a storage capacity of 158 acre-feet and a surface area of 75 acres.

The dam is situated on the Great Swamp, within Wayne County, and covers a drainage area of 5056 acres. Despite not being regulated by the state, the dam is subject to regular inspections, with the last assessment conducted in March 2018. Classified as having a high hazard potential, its condition remains unrated. With a maximum discharge of 165 cubic feet per second, the dam poses a risk that requires careful monitoring and management to ensure the safety of surrounding areas.

For water resource and climate enthusiasts, Aycock Millpond Dam presents an intriguing case study in private dam ownership and maintenance. As the structure continues to age, its role in providing recreational opportunities while mitigating potential hazards underscores the complex interplay between human development and environmental stewardship in the face of evolving climate patterns. Further research and analysis will be crucial in determining the long-term sustainability and resilience of this historic dam within the context of changing hydrological conditions.

StateNone
River / streamGreat Swamp
NID IDNC00940
Owner typePrivate
Primary purposeRecreation
Dam typeEarth
Year built1880
Dam length350 ft
Max storage158 AF
Normal storage132 AF
Surface area75.0 ac
Drainage area5,056.0 sq mi
Hazard potentialHigh
ConditionNot Rated
Last inspectionMon, 19 Mar 2018 00:00:00 GMT

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.
Detailed forecast

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.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

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.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Regional inflow

Nearby streamflow gauges

USGS streamgauges around Aycock Millpond Dam -- inflows here typically show up in storage 24-72 hours later.

Track Aycock Millpond Dam 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.

FAQ

About Aycock Millpond Dam

Where does the data for Aycock Millpond Dam 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.

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