Rappahannock Dam #7 dam
Rappahannock Dam #7
Rappahannock Dam #7, located in Rappahannock, Virginia, is a state-regulated structure managed by the Department of Conservation and Recreation. This dam, with a height of 29.5 feet, serves a crucial role in water resource management by providing storage capacity of 56.99 acre-feet and normal storage of 42.1 acre-feet. Despite its undetermined hazard potential and lack of a condition rating, Rappahannock Dam #7 is equipped with inspection, permitting, and enforcement protocols to ensure its safety and functionality.
Situated within the Baltimore District, Rappahannock Dam #7's primary purpose and dam type remain unspecified, but its structural integrity and hydraulic height of 29.5 feet demonstrate its importance in managing water resources in the region effectively. While the dam lacks specific details on spillway type or outlet gates, it plays a crucial role in mitigating flood risks, maintaining water supply, and supporting environmental conservation efforts. As an essential infrastructure in Virginia, Rappahannock Dam #7 exemplifies the state's commitment to sustainable water resource management and climate resilience.
As an asset under the ownership of unspecified entities, Rappahannock Dam #7's potential for risk management and emergency preparedness measures remains unassessed. With its undetermined hazard potential and condition rating, there is a need for further evaluation and monitoring to ensure the dam's safety and efficacy. This structure's significance in water resource management highlights the importance of ongoing maintenance, inspection, and regulatory oversight to safeguard the environment and communities that rely on its services.
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 Rappahannock Dam #7 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Battle Run Near Laurel Mills | 24 cfs | → |
| S F Shenandoah River At Front Royal | 323 cfs | → |
| Passage Creek Near Buckton | 9 cfs | → |
| Hazel River At Rixeyville | 43 cfs | → |
| N F Shenandoah River Near Strasburg | 151 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 Rappahannock Dam #7.
Boat launches
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Campgrounds
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Fishing spots
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River runs
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About Rappahannock Dam #7
Where does the data for Rappahannock Dam #7 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.