Willow Dam dam
Willow Dam
Willow Dam, located in Fauquier, Virginia, is a privately owned structure primarily used for irrigation purposes. Standing at 24 feet high and spanning 660 feet in length, this earth dam is situated along TR-Broad Run and has a storage capacity of 71 acre-feet. The dam is regulated and inspected by the Department of Conservation and Recreation in Virginia, ensuring its safety and compliance with state guidelines.
Despite its undetermined hazard potential and lack of a condition rating, Willow Dam remains a crucial resource for water management in the area. With a normal storage capacity of 50 acre-feet and a surface area of 8 acres, the dam provides essential irrigation for agricultural purposes in the region. Additionally, it offers opportunities for recreation, although specifics on recreational activities are not provided in the data.
As water resource and climate enthusiasts, the details of Willow Dam's structure and function offer insight into the management of water resources in Virginia. The dam's presence along TR-Broad Run highlights its role in regulating water flow and storage, contributing to the sustainability of the surrounding environment. With ongoing state regulation and inspection, Willow Dam serves as a vital component of water management infrastructure in the region, supporting both agricultural needs and recreational activities.
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.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
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.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Willow Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Goose Creek Near Middleburg | 9 cfs | → |
| Beaverdam Creek At Rt 734 Near Mountville | 1 cfs | → |
| Goose Creek Near Leesburg | 28 cfs | → |
| N F Goose Creek At Rt 729 Near Lincoln | 1 cfs | → |
| Cedar Run Near Catlett | 3 cfs | → |
| Spout Run At Rt 621 Near Millwood | 6 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Willow Dam.
Boat launches
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Campgrounds
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Fishing spots
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River runs
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About Willow Dam
Where does the data for Willow 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 Undetermined 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 below 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.
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.