Jmc Iv Dam dam
Jmc Iv Dam
Jmc Iv Dam in Stafford, Virginia, is a privately-owned structure regulated by the Department of Conservation and Recreation. This dam, with a height of 25.5 feet and a storage capacity of 52.12 acre-feet, plays a crucial role in water resource management in the region. While the dam's primary purpose and construction details are unspecified, its state-regulated status ensures regular inspections and enforcement of safety measures.
Located in the Baltimore District, Jmc Iv Dam is an integral part of the water infrastructure in Virginia, providing essential storage for the surrounding area. Despite being labeled as "Undetermined" in terms of hazard potential and "Not Rated" in condition assessment, the dam's emergency action plan status and risk management measures are unclear. With latitude and longitude coordinates of 38.3501 and -77.4869, respectively, this dam's significance in controlling water flow and ensuring climate resilience cannot be understated.
As an enthusiast of water resources and climate management, the Jmc Iv Dam presents an intriguing case study in the complexities of dam regulation and maintenance. With its state jurisdiction, inspection protocols, and storage capacity, this dam showcases the intersection of private ownership and public oversight in safeguarding water resources. Exploring the details of its design, purpose, and emergency preparedness can provide valuable insights into the broader challenges and opportunities in sustainable water management in the face of a changing climate.
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 Jmc Iv Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Rappahannock River Near Fredericksburg | 213 cfs | → |
| Aquia Creek Near Garrisonville | 2 cfs | → |
| Po River Near Spotsylvania | 4 cfs | → |
| S F Quantico Creek Near Independent Hill | 0 cfs | → |
| Mattaponi River Near Bowling Green | 13 cfs | → |
| Cedar Run Near Catlett | 5 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Jmc Iv Dam.
Boat launches
- Elys Ford Road Spotsylvania County
- County Road 639 1302, Stafford County
- Elys Ford Road 10615, Fredericksburg
- Southlake Drive 9505, Spotsylvania County
- Old Wharf Road King George County
- Friendship Landing Road 4701, Charles County
Campgrounds
- Lunga Park Military - Quantico Mcb
- Campsite #6
- Campground 3
- Turkey Run Ridge Group Campground
- Oak Ridge - Prince William Forest Park
- Oak Ridge Campground
Fishing spots
Track Jmc Iv Dam 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 Jmc Iv Dam
Where does the data for Jmc Iv Dam 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 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 Jmc Iv Dam.