Dam Report

Big Branch Coal Refuse Facility dam

West Virginia, USA Big Branch Of Lilly Fork Hazard High
Today high
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Tonight low
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Dam height
260ft
Hazard rating
High
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Big Branch Coal Refuse Facility -- None dam
Big Branch Coal Refuse Facility None · Big Branch Of Lilly Fork
About this dam

Big Branch Coal Refuse Facility

Big Branch Coal Refuse Facility in Clay, West Virginia, is a privately owned dam with a height of 260 feet and a length of 1900 feet completed in 1997. The dam is situated on the Big Branch of Lilly Fork and has a storage capacity of 4828 acre-feet, serving a primary purpose of "other." The facility is regulated by the Mine Safety and Health Administration and is subject to state inspection and enforcement.

With a hazard potential rated as high, the condition of the dam is currently not rated, highlighting the need for ongoing monitoring and maintenance. The dam's drainage area is 0.53 square miles, and it covers a surface area of 71.7 acres. Despite its critical role in water resource management, the dam lacks an emergency action plan and has not undergone a risk assessment.

Given its significant storage capacity and location near residential areas, the Big Branch Coal Refuse Facility presents a potential risk in the event of a dam failure. To ensure the safety of the surrounding community and the integrity of the dam, it is essential for proper risk management measures to be implemented, including the development of an emergency action plan and regular condition assessments.

StateNone
River / streamBig Branch Of Lilly Fork
NID IDWV01506
Owner typePrivate
Primary purposeOther
Dam typeEarth
Year built1997
Dam height260 ft
Dam length1,900 ft
Max storage4,828 AF
Normal storage3,864 AF
Surface area71.7 ac
Drainage area0.5 sq mi
Hazard potentialHigh
ConditionNot Rated

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 Big Branch Coal Refuse Facility -- inflows here typically show up in storage 24-72 hours later.

Track Big Branch Coal Refuse Facility 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 Big Branch Coal Refuse Facility

Where does the data for Big Branch Coal Refuse Facility 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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