Goodwyn Lake Dam dam
Goodwyn Lake Dam
Goodwyn Lake Dam, located in Powhatan, Virginia, is a state-regulated structure managed by the Department of Conservation and Recreation. This dam, situated on Branch Creek, stands at a height of 22 feet and has a storage capacity of 434 acre-feet. While the primary purpose of the dam is not specified, it serves as a vital water resource for the surrounding area.
Despite being classified as "Undetermined" in terms of hazard potential and "Not Rated" in condition assessment, Goodwyn Lake Dam undergoes regular inspections with a frequency of one per year. The dam's Emergency Action Plan status and risk assessment details are currently not available. With a strong regulatory framework in place, including permitting, inspection, and enforcement by state agencies, the dam plays a crucial role in water resource management in the region, though further information on its design, construction, and operation is needed to fully assess its impact on the local climate and environment.
As an integral part of the water infrastructure in Virginia, Goodwyn Lake Dam's significance extends beyond its physical attributes. Its location within the Norfolk District of the US Army Corps of Engineers highlights its importance in flood control and water supply management. With Abigail Davis Spanberger serving as the representative for the congressional district, there is a clear link between the dam's operations and federal oversight. As water resource and climate enthusiasts delve deeper into the data surrounding Goodwyn Lake Dam, there is a wealth of information to uncover about its history, purpose, and role in sustaining the region's ecological balance.
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 Goodwyn Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Fine Creek At Fine Creek Mills | 2 cfs | → |
| Appomattox River At Mattoax | 115 cfs | → |
| James River At Cartersville | 1,580 cfs | → |
| James River And Kanawha Canal Near Richmond | 137 cfs | → |
| Deep Creek Near Mannboro | 15 cfs | → |
| James River Near Richmond | 1,230 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Goodwyn Lake Dam.
Track Goodwyn 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 Goodwyn Lake Dam
Where does the data for Goodwyn 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 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 Goodwyn Lake Dam.