Dam Report

Arrowhead Lake dam

North Carolina, USA Clear Creek Hazard High
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Tonight low
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Dam height
23ft
Hazard rating
High
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Arrowhead Lake -- None dam
Arrowhead Lake None · Clear Creek
About this dam

Arrowhead Lake

Arrowhead Lake, also known as Stone Dam, is a picturesque private reservoir located in Cedar Mountain, North Carolina, within the Transylvania County. This stunning lake is fed by Clear Creek and offers a tranquil setting for recreational activities such as fishing, boating, and swimming. Completed in 1952, Arrowhead Lake has a hydraulic height of 19 feet and a structural height of 23 feet, with a capacity to store 100 acre-feet of water and covering an area of 8 acres.

Managed by the North Carolina Department of Environmental Quality's Dam Safety Program, Arrowhead Lake is subject to regular state inspections, enforcement, and permitting to ensure its safety and compliance with regulations. Despite its high hazard potential, the dam is currently assessed to be in fair condition as of the last inspection in May 2015. The Emergency Action Plan (EAP) for the dam was last revised in February 2018, indicating a proactive approach to emergency preparedness and risk management.

For water resource and climate enthusiasts, Arrowhead Lake serves as a valuable example of how private dams can contribute to both recreational opportunities and the management of water resources. With its serene surroundings and important role in the local ecosystem, Arrowhead Lake stands as a symbol of the delicate balance between human recreation and environmental stewardship in the face of changing climate conditions.

StateNone
River / streamClear Creek
NID IDNC00169
Owner typePrivate
Primary purposeRecreation
Dam typeEarth
Year built1952
Dam length200 ft
Max storage100 AF
Normal storage60 AF
Surface area8.0 ac
Hazard potentialHigh
ConditionFair
Last inspectionFri, 08 May 2015 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 Arrowhead Lake -- inflows here typically show up in storage 24-72 hours later.

Track Arrowhead Lake 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 Arrowhead Lake

Where does the data for Arrowhead Lake 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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