Dam Report

Hollaman Lake Dam dam

North Carolina, USA French Broad River-Trib Hazard Low
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Tonight low
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Dam height
32ft
Hazard rating
Low
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Hollaman Lake Dam -- None dam
Hollaman Lake Dam None · French Broad River-Trib
About this dam

Hollaman Lake Dam

Hollaman Lake Dam, also known as Hollabrook Farm Pond, is a private dam located in Henderson, North Carolina, just 15 miles from Asheville. This earth dam serves multiple purposes including fire protection and creating a stock or small fish pond. With a hydraulic height of 26.6 feet and a structural height of 32 feet, this dam has a storage capacity of 60 acre-feet, with a normal storage level of 35 acre-feet.

The dam, situated on the French Broad River-Trib, is regulated by the NC Department of Environmental Quality's Dam Safety Program, ensuring that it meets state inspection and enforcement standards. Despite its low hazard potential and satisfactory condition assessment, the last inspection was conducted in February 2013, with a periodic inspection frequency of 5 years. The dam has a surface area of 5 acres and drains an area of 77 acres, with a maximum discharge capacity of 300 cubic feet per second.

While Hollaman Lake Dam may not be as well-known as larger dams, its importance in providing fire protection and supporting local wildlife cannot be understated. As water resource and climate enthusiasts, understanding the infrastructure and regulatory oversight of smaller dams like this one can provide valuable insights into the broader ecosystem and water management practices in North Carolina.

StateNone
River / streamFrench Broad River-Trib
NID IDNC01386
Owner typePrivate
Primary purposeFire Protection, Stock, Or Small Fish Pond
Dam typeEarth
Dam length400 ft
Max storage60 AF
Normal storage35 AF
Surface area5.0 ac
Drainage area77.0 sq mi
Hazard potentialLow
ConditionSatisfactory
Last inspectionThu, 07 Feb 2013 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 Hollaman Lake Dam -- inflows here typically show up in storage 24-72 hours later.

Track Hollaman 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 Hollaman Lake Dam

Where does the data for Hollaman 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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