Ni River Dam #1 dam
Ni River Dam #1
Ni River Dam #1, located in Spotsylvania, Virginia, stands as a crucial water resource infrastructure managed by the local government. With a primary purpose of water supply, this earth-type dam on the Ni River also serves flood risk reduction and recreational activities in the region. Standing at a height of 50.9 feet and a length of 1750 feet, the dam provides a storage capacity of 24,873 acre-feet, with a normal storage level of 8,624 acre-feet across a surface area of 401 acres.
Despite its fair condition assessment as of July 2021, Ni River Dam #1 poses a high hazard potential due to its critical role in water supply and flood risk mitigation. The dam is regulated, inspected, and enforced by the Department of Conservation and Recreation in Virginia, ensuring its operational safety. While no spillway type or maximum discharge information is provided, the dam's strategic location on the Ni River within the Baltimore District underscores its importance in managing water resources and climate-related challenges in the area.
As a vital piece of water infrastructure in Spotsylvania, Virginia, Ni River Dam #1 represents a significant asset in the region's water supply and flood risk management efforts. With its large storage capacity and multi-purpose functionality, the dam plays a crucial role in safeguarding the local community against potential water-related hazards. Continuous monitoring and adherence to regulatory guidelines ensure that Ni River Dam #1 remains a reliable and resilient resource for water resource and climate enthusiasts alike.
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 Ni River Dam #1 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Po River Near Spotsylvania | 4 cfs | → |
| Rappahannock River Near Fredericksburg | 213 cfs | → |
| Mattaponi River Near Bowling Green | 13 cfs | → |
| North Anna River Near Partlow | 46 cfs | → |
| Aquia Creek Near Garrisonville | 2 cfs | → |
| Rapidan River Near Culpeper | 99 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Ni River Dam #1.
Boat launches
- Southlake Drive 9505, Spotsylvania County
- Elys Ford Road Spotsylvania County
- Elys Ford Road 10615, Fredericksburg
- County Road 639 1302, Stafford County
- Old Wharf Road King George County
- Rogues Road Fauquier County
Campgrounds
- Lake Anna State Park
- Champs Rv Military - A P Hill
- Christopher Run Campground
- Lunga Park Military - Quantico Mcb
- Campsite #6
- Campground 3
Fishing spots
Track Ni River Dam #1 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 Ni River Dam #1
Where does the data for Ni River Dam #1 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 High 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 Ni River Dam #1.