F.P. Griffith Water Plant Lorton Quarry dam
F.P. Griffith Water Plant Lorton Quarry
The F.P. Griffith Water Plant in Lorton Quarry, located in Fairfax, Virginia, is a vital infrastructure serving as a public utility for water resource management. The plant is situated near the Little Occoquan Run, under the jurisdiction of the Department of Conservation and Recreation in Virginia. With a dam height of 20 feet and a storage capacity of 253 acre-feet, the facility plays a crucial role in maintaining water supply and managing potential risks associated with significant hazard potential.
Managed by the Norfolk District of the US Army Corps of Engineers, the F.P. Griffith Water Plant is designed to meet state regulations and undergo regular inspections to ensure operational efficiency and safety. While the dam's condition assessment is currently not rated, the facility's emergency action plan and risk management measures are in place to address any potential hazards. With a strategic location and a focus on sustainable water resource management, the plant serves as a key asset in safeguarding water quality and availability in the region.
As a primary purpose of providing essential water services, the F.P. Griffith Water Plant stands as a critical component in the infrastructure network of Fairfax, Virginia. With a focus on public utility ownership and state-regulated operations, the facility plays a key role in water supply management and environmental stewardship. As climate change impacts water resources, the plant's strategic location and storage capacity are essential in ensuring a resilient and sustainable water supply for the community.
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 F.P. Griffith Water Plant Lorton Quarry -- 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 | → |
| S F Quantico Creek Near Independent Hill | 0 cfs | → |
| Cameron Run At Alexandria | 6 cfs | → |
| Mattawoman Creek Near Pomonkey | 1 cfs | → |
| Fourmile Run At Alexandria | 3 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near F.P. Griffith Water Plant Lorton Quarry.
Boat launches
- Forest Hill Road Lake Ridge
- Marshall Hall Boat Ramp Charles County
- Ludgate Drive Mount Vernon
- Doves Trail Prince William County
- Sinclair Lane Prince William County
- Wharf Road Accokeek
Campgrounds
- Pohick Bay Regional Park
- Burke Lake Park
- Fort Belvoir Travel And Rv Camp
- Prince William Forest Rv Campground
- Cabin Camp 1
- Cabin Camp 4 - Pleasant Historic District
Fishing spots
Track F.P. Griffith Water Plant Lorton Quarry 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 F.P. Griffith Water Plant Lorton Quarry
Where does the data for F.P. Griffith Water Plant Lorton Quarry 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 Significant 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 F.P. Griffith Water Plant Lorton Quarry.