Tiller Lake Dam dam
Tiller Lake Dam
Tiller Lake Dam, located in Hanover, Virginia, is a critical water resource infrastructure primarily used for irrigation purposes. This private dam, also known as Hunting Hawk G C, stands at a height of 13 feet with a length of 823 feet, creating a storage capacity of 87.33 acre-feet. Situated on a tributary of the Chickahominy River, this earth dam plays a crucial role in water management in the region.
The dam's condition assessment in 2012 rated it as fair, with a high hazard potential, highlighting the importance of regular inspections and maintenance to ensure its safety and functionality. Despite being privately owned, Tiller Lake Dam falls under state regulation and jurisdiction, with the Department of Conservation and Recreation overseeing its permitting, inspection, and enforcement processes. The dam's location and design make it a key structure in managing water resources in Hanover County, Virginia, showcasing the intersection of private ownership and public oversight in safeguarding critical infrastructure.
Water resource and climate enthusiasts would be intrigued by Tiller Lake Dam's role in irrigation and water management in the region. Its high hazard potential and fair condition underscore the importance of ongoing monitoring and risk management to ensure the safety of surrounding communities and the integrity of the dam. As a key piece of infrastructure in Hanover County, Virginia, this private earth dam serves as a reminder of the complex interplay between private ownership, state regulation, and public safety in safeguarding water resources and adapting to changing climate 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 Tiller Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| South Anna River Near Ashland | 42 cfs | → |
| James River And Kanawha Canal Near Richmond | 137 cfs | → |
| James River Near Richmond | 1,250 cfs | → |
| Little River Near Doswell | 39 cfs | → |
| Fine Creek At Fine Creek Mills | 2 cfs | → |
| North Anna River At Hart Corner Near Doswell | 103 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Tiller Lake Dam.
Boat launches
- Mountain Road Hanover County
- Watkins Landing Road 3099, Powhatan County
- Riverside Drive Richmond
- Bateau Landing Road 4399, Powhatan County
- Powhatan State Park Road Powhatan County
- Ancarrow's Landing
Track Tiller Lake 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 Tiller Lake Dam
Where does the data for Tiller Lake 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 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 Tiller Lake Dam.