Dam Report

Blue Brothers Lake Dam dam

North Carolina, USA Horse Branch Hazard Significant
Today high
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Tonight low
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Dam height
23ft
Hazard rating
Significant
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Blue Brothers Lake Dam -- None dam
Blue Brothers Lake Dam None · Horse Branch
About this dam

Blue Brothers Lake Dam

Blue Brothers Lake Dam, located in Lobelia, North Carolina, is a private dam primarily used for irrigation purposes on the Horse Branch river. Built in 1955 by the USDA NRCS, this earth dam stands at a hydraulic height of 20 feet and a structural height of 23 feet, with a length of 540 feet. The dam has a significant hazard potential and its condition has been assessed as poor, highlighting the need for regular inspections and potential risk management measures.

Despite its poor condition, Blue Brothers Lake Dam continues to serve as a vital source of water for irrigation and recreation, with a storage capacity of 101 acre-feet. The dam's spillway type is uncontrolled, and it has a spillway width that is not specified. The dam is under state regulation by the NCDEQ Dam Safety Program, ensuring that it meets the necessary safety standards and undergoes regular inspections to prevent potential hazards and risks to the surrounding community.

With its moderate risk assessment rating and the presence of significant hazard potential, Blue Brothers Lake Dam stands as a reminder of the importance of proper maintenance and monitoring of water infrastructure in the face of changing climate conditions. As water resource and climate enthusiasts, it is crucial to advocate for the continued upkeep and safety of such structures to ensure the protection of both the environment and local communities that depend on them.

StateNone
River / streamHorse Branch
NID IDNC00001
Owner typePrivate
Primary purposeIrrigation
Dam typeEarth
Year built1955
Dam length540 ft
Max storage101 AF
Normal storage96 AF
Surface area9.0 ac
Hazard potentialSignificant
ConditionPoor
Last inspectionWed, 24 Feb 2021 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 Blue Brothers Lake Dam -- inflows here typically show up in storage 24-72 hours later.

Track Blue Brothers Lake Dam in the Snoflo app

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FAQ

About Blue Brothers Lake Dam

Where does the data for Blue Brothers 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 Significant 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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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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