Dam Report

Mars Hill Water Supply Dam dam

North Carolina, USA Big Laurel Creek Hazard High
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Dam height
49ft
Hazard rating
High
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Mars Hill Water Supply Dam -- None dam
Mars Hill Water Supply Dam None · Big Laurel Creek
About this dam

Mars Hill Water Supply Dam

The Mars Hill Water Supply Dam, located in Faust, North Carolina, serves as a crucial water supply resource for the local community. Constructed in 1958, this Earth-type dam stands at a structural height of 48.5 feet and has a hydraulic height of 40.5 feet. With a normal storage capacity of 30 acre-feet and a maximum storage capacity of 40 acre-feet, the dam plays a vital role in providing water to residents in the area.

Situated on Big Laurel Creek within Madison County, the Mars Hill Water Supply Dam is regulated by the North Carolina Department of Environmental Quality's Dam Safety Program. With a high hazard potential, the dam underwent its last inspection in June 2014, where it was assessed as being in satisfactory condition. The dam's emergency action plan was last revised in November 2009, highlighting the importance of ongoing safety measures and preparedness.

Overall, the Mars Hill Water Supply Dam serves as a critical infrastructure to ensure reliable access to water resources for the local community. With its strategic location on Big Laurel Creek and adherence to state regulatory standards, the dam continues to play a central role in water supply management in the region.

StateNone
River / streamBig Laurel Creek
NID IDNC01345
Owner typeLocal Government
Primary purposeWater Supply
Dam typeEarth
Year built1958
Dam length306 ft
Max storage40 AF
Normal storage30 AF
Surface area2.8 ac
Drainage area535.0 sq mi
Hazard potentialHigh
ConditionSatisfactory
Last inspectionThu, 19 Jun 2014 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 Mars Hill Water Supply Dam -- inflows here typically show up in storage 24-72 hours later.

Track Mars Hill Water Supply Dam in the Snoflo app

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FAQ

About Mars Hill Water Supply Dam

Where does the data for Mars Hill Water Supply 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 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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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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