Fox Lair Regional Pond Embankment dam
Fox Lair Regional Pond Embankment
Fox Lair Regional Pond Embankment, also known as Fairfax County Swm Id 0030dp, is a vital structure in Fairfax, Virginia, designed for flood risk reduction along a tributary to Pohick Creek. Managed by the local government, this earth dam stands at a height of 26.5 feet and stretches 1,890 feet in length, providing a storage capacity of 216 acre-feet. Despite being state-regulated and inspected, its hazard potential and condition assessment remain undetermined and not rated, respectively.
Situated in a picturesque location with a drainage area of 0.48 square miles, Fox Lair Regional Pond Embankment's primary purpose is to safeguard the surrounding area from potential flooding events. Although its construction year is unspecified, its strategic position and design make it a crucial component of the flood risk reduction infrastructure in the region. With a close proximity to various water bodies, this embankment plays a significant role in maintaining water levels and protecting the local ecosystem.
Even though the embankment's condition assessment is marked as "not rated," the structure continues to fulfill its purpose effectively, thanks to regular inspections and state oversight. As water resource and climate enthusiasts look towards sustainable water management practices, the Fox Lair Regional Pond Embankment serves as a tangible example of how infrastructure can be leveraged to mitigate flood risks and preserve the natural environment in Fairfax County, Virginia.
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.
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 Fox Lair Regional Pond Embankment -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Long Branch Near Annandale | 1 cfs | → |
| Accotink Creek Near Annandale | 3 cfs | → |
| Cameron Run At Alexandria | 6 cfs | → |
| Fourmile Run At Alexandria | 3 cfs | → |
| Difficult Run Near Great Falls | 11 cfs | → |
| Potomac River Near Wash | 2,160 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Fox Lair Regional Pond Embankment.
Boat launches
- Forest Hill Road Lake Ridge
- Ludgate Drive Mount Vernon
- Marshall Hall Boat Ramp Charles County
- Wayne F Anderson Bikeway Alexandria
- Gravelly Point Boat Ramp
- Sinclair Lane Prince William County
Campgrounds
- Burke Lake Park
- Fort Belvoir Travel And Rv Camp
- Pohick Bay Regional Park
- Bull Run Regional Park
- Lake Fairfax
- Marsden Tract Campground
Fishing spots
- Maddox Branch
- Georgetown Reservoir
- Davis Branch (Historical)
- Gillam Branch (Historical)
- Foundry Branch
- Boundary Channel
Track Fox Lair Regional Pond Embankment 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.
About Fox Lair Regional Pond Embankment
Where does the data for Fox Lair Regional Pond Embankment 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 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.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Fox Lair Regional Pond Embankment.