Allmans Dam dam
Allmans Dam
Allmans Dam, located in Albemarle, Virginia, is a privately owned earth dam primarily used for recreation purposes. With a height of 17 feet and a length of 400 feet, this dam creates a reservoir with a storage capacity of 76 acre-feet. Situated on tributary Rockcastle Creek, the dam is regulated by the Department of Conservation and Recreation in Virginia, ensuring proper inspection, permitting, and enforcement protocols are in place.
Despite its undetermined hazard potential and lack of a condition rating, Allmans Dam serves as a key feature in the local landscape, offering opportunities for irrigation and recreational activities. The dam has not been modified in recent years, indicating its stability and long-standing presence in the community. While emergency action plans and risk assessments are not currently in place, the dam continues to provide valuable benefits to both residents and visitors in the area.
As water resource and climate enthusiasts, the allure of Allmans Dam lies in its unique design, purpose, and location within the Norfolk District of Virginia. With Denver Riggleman representing the Congressional district, the dam plays a crucial role in managing water resources and supporting recreational opportunities for the surrounding community. While its specific volume and discharge capacities remain unknown, Allmans Dam stands as a testament to the importance of responsible dam ownership and management in the face of changing environmental conditions.
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 Allmans Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| James River At Scottsville | 1,600 cfs | → |
| Hardware River Bl Briery Run Nr Scottsville | 23 cfs | → |
| Slate River Near Arvonia | 65 cfs | → |
| Rockfish River Near Greenfield | 41 cfs | → |
| Rivanna River At Palmyra | 102 cfs | → |
| Mechums River Near White Hall | 27 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Allmans Dam.
Boat launches
- Howardsville Turnpike 11001, Albemarle County
- Nelson County
- James River Road Nelson County
- Boat Landing Lane Buckingham County
- River Anne Palmyra
- South Boston Road 3315, Fluvanna County
Campgrounds
- James River State Park
- Bear Creek Lake State Park
- Girl Scout Camp
- Hiker Camping
- Sherando Lake
- Sherando Lake Recreation Area
Fishing spots
Paddle runs
- Nf Boundary Along The South Fork Tye River Near Fdt 526 And State Highway 56 To Town Of Nash
- Headwaters To Farmville
- Headwaters South Of Flint Mountain To St. Mary's Wilderness Boundary
- 1 Mile Southeast Of Buchanan (At End Of Nfs Land) To Snowden Dam Reservoir
- North River Campground To Camp May Flather
Track Allmans 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 Allmans Dam
Where does the data for Allmans 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 Allmans Dam.