Dam Report

Willis Lake Dam dam

North Carolina, USA Waterfall Creek Hazard Low
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Tonight low
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Dam height
30ft
Hazard rating
Low
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Willis Lake Dam -- None dam
Willis Lake Dam None · Waterfall Creek
About this dam

Willis Lake Dam

Located in Whitehead, North Carolina, the Willis Lake Dam stands as a testament to engineering excellence since its completion in 1962. With a primary purpose of recreation, this private dam on Waterfall Creek offers a serene escape for water resource and climate enthusiasts alike. Standing at a structural height of 30 feet and a hydraulic height of 25 feet, the dam boasts a storage capacity of 56 acre-feet, providing a surface area of 4.7 acres for outdoor enjoyment.

Managed by the NCDEQ Dam Safety Program, the Willis Lake Dam is state-regulated, inspected, and enforced to ensure its structural integrity and safety. With a low hazard potential and a satisfactory condition assessment as of January 2019, this earth dam continues to serve its recreational purposes with minimal risk. Surrounded by the picturesque Alleghany County landscape, the dam's location offers a tranquil setting for visitors to connect with nature and appreciate the importance of sustainable water resource management in the face of changing climates.

As the Wilmington District of the USACE oversees the Willis Lake Dam, it remains a vital part of the local ecosystem, providing both recreational opportunities and essential water storage. With a drainage area of 218 square miles and a maximum discharge capacity of 165 cubic feet per second, this dam plays a crucial role in maintaining water flow and quality in the region. For water resource and climate enthusiasts, the Willis Lake Dam represents a harmonious blend of human ingenuity and environmental stewardship, ensuring a sustainable future for generations to come.

StateNone
River / streamWaterfall Creek
NID IDNC00243
Owner typePrivate
Primary purposeRecreation
Dam typeEarth
Year built1962
Dam length219 ft
Max storage56 AF
Normal storage47 AF
Surface area4.7 ac
Drainage area218.0 sq mi
Hazard potentialLow
ConditionSatisfactory
Last inspectionThu, 17 Jan 2019 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 Willis Lake Dam -- inflows here typically show up in storage 24-72 hours later.

Track Willis Lake 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 Willis Lake Dam

Where does the data for Willis Lake 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 Low 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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Premium feature

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Manage alerts in the Snoflo app

Custom alerts are configured in the iOS app -- favorite this dam, set a threshold, and you'll get a push the moment conditions cross.

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