Rappahannock Dam #18 dam
Rappahannock Dam #18
Rappahannock Dam #18 in Rappahannock, Virginia, is a state-regulated dam owned by an entity not listed in the data. The dam is under the jurisdiction of the Department of Conservation and Recreation in Virginia and is subject to state permitting, inspection, and enforcement. Although the primary purpose of the dam is not specified in the data, it has a height of 10.5 feet and provides a storage capacity of 57.12 acre-feet, with a normal storage capacity of 32.64 acre-feet.
Located in the Baltimore District, Rappahannock Dam #18 has a structural height and hydraulic height of 10.5 feet, with a length of 1000 feet. The condition of the dam is currently not rated, and its hazard potential is listed as undetermined. Despite lacking specific information on its completion year, the dam continues to serve as a critical infrastructure for water resource management in the region. With its impressive storage capacity and state regulatory oversight, Rappahannock Dam #18 plays a crucial role in mitigating flood risks and ensuring reliable water supply for the surrounding area.
Water resource and climate enthusiasts will find Rappahannock Dam #18 intriguing due to its state-regulated status, significant storage capacity, and vital role in water management in Rappahannock, Virginia. While the dam's condition assessment is not rated, its presence underscores the importance of infrastructure maintenance and monitoring in safeguarding against potential hazards. With its location in the Baltimore District and under the jurisdiction of the Department of Conservation and Recreation, the dam stands as a testament to the ongoing efforts to balance water resource management and environmental stewardship in the region.
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 #18 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Battle Run Near Laurel Mills | 24 cfs | → |
| Hazel River At Rixeyville | 43 cfs | → |
| Rappahannock River At Remington | 59 cfs | → |
| S F Shenandoah River At Front Royal | 323 cfs | → |
| Rapidan River Near Culpeper | 58 cfs | → |
| Robinson River Near Locust Dale | 26 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Rappahannock Dam #18.
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 #18
Where does the data for Rappahannock Dam #18 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.