Dam Report

Lower Sherando Dam dam

Virginia, USA N Fork Back Creek Hazard High
Today high
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Tonight low
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Dam height
38ft
Hazard rating
High
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Lower Sherando Dam -- None dam
Lower Sherando Dam None · N Fork Back Creek
About this dam

Lower Sherando Dam

Lower Sherando Dam, located in Augusta, Virginia, is a Federal-owned structure managed by the USDA Forest Service. Completed in 1934, this Earth-type dam stands at a height of 38 feet and has a hydraulic height of 30 feet, serving primarily for recreational purposes including fish and wildlife pond activities. With a storage capacity of 393 acre-feet, the dam poses a high hazard potential due to its location on the North Fork Back Creek.

The dam's controlled spillway, slide gates, and high hazard potential make it a crucial structure for water resource management. Despite not being state-regulated, Lower Sherando Dam's risk assessment is ranked as very high, emphasizing the need for proper monitoring and emergency preparedness. The dam's association with the Forest Service highlights its significance in maintaining ecological balance and providing recreational opportunities for visitors in the area.

For water resource and climate enthusiasts, Lower Sherando Dam presents an intriguing case study in dam engineering and management. Its historical significance, high hazard potential, and recreational value make it a unique site for understanding the intersection of water resource conservation and public enjoyment. As debates around dam safety and environmental impact continue, Lower Sherando Dam stands as a testament to the delicate balance between human intervention and natural ecosystems in the face of climate change.

StateNone
River / streamN Fork Back Creek
NID IDVA015020
Owner typeFederal
Primary purposeRecreation
Dam typeEarth
Year built1934
Dam height38 ft
Dam length335 ft
Max storage393 AF
Normal storage170 AF
Drainage area4.0 sq mi
Hazard potentialHigh
ConditionNot Rated
Last inspectionTue, 26 Mar 2019 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 Lower Sherando Dam -- inflows here typically show up in storage 24-72 hours later.

Track Lower Sherando 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 Lower Sherando Dam

Where does the data for Lower Sherando 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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