North Anna Cat I Service Water Dike dam
North Anna Cat I Service Water Dike
The North Anna Cat I Service Water Dike, also known as Cat I Emergency Cooling Water, is a crucial structure owned by a Public Utility in Louisa, Virginia. Completed in 1974, this rockfill dam stands at 37 feet high and stretches 3000 feet in length, with a storage capacity of 177 acre-feet. While the dam is primarily categorized as having a low hazard potential, it is subject to regular inspections by the Nuclear Regulatory Commission to ensure its satisfactory condition and compliance with safety standards.
Located in Mineral, Virginia, the North Anna Cat I Service Water Dike plays a vital role in emergency cooling water provisions for the region. Despite its limited drainage area of 0.14 square miles, the dam's normal storage capacity of 88 acre-feet serves as a reliable resource for water management in the area. With a Satisfactory condition assessment as of 2016, this structure not only serves its intended purpose but also contributes to the overall risk management in the region.
With its historical completion date and continual regulatory oversight, the North Anna Cat I Service Water Dike stands as a testament to effective infrastructure management in the face of potential climate-related risks. As climate enthusiasts and water resource advocates, it is important to recognize the significance of such structures in maintaining water security and emergency preparedness in the face of evolving environmental challenges.
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 North Anna Cat I Service Water Dike -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| North Anna River Near Partlow | 57 cfs | → |
| Po River Near Spotsylvania | 10 cfs | → |
| Little River Near Doswell | 39 cfs | → |
| Mattaponi River Near Bowling Green | 20 cfs | → |
| Rappahannock River Near Fredericksburg | 792 cfs | → |
| Rapidan River Near Culpeper | 461 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near North Anna Cat I Service Water Dike.
Track North Anna Cat I Service Water Dike 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 North Anna Cat I Service Water Dike
Where does the data for North Anna Cat I Service Water Dike 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 Low 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 North Anna Cat I Service Water Dike.