Grogan Estate Lake Dam dam
Grogan Estate Lake Dam
Grogan Estate Lake Dam, located in Madison, North Carolina, serves as a crucial water resource for irrigation and recreation purposes. Built in 1958, this earth dam stands at a structural height of 20 feet, with a hydraulic height of 18 feet, creating a storage capacity of 56 acre-feet.Implemented by a private owner, the dam is regulated by the North Carolina Department of Environmental Quality's Dam Safety Program, ensuring regular inspections and enforcement of safety measures.
With a drainage area of 71 square miles and a maximum discharge of 396 cubic feet per second, Grogan Estate Lake Dam plays a vital role in managing water flow within the Big Beaver Island Creek-Tr watershed. Despite its high hazard potential, the dam is currently assessed to be in fair condition as of the last inspection in January 2020. The surrounding area features a surface area of 7 acres, providing a scenic backdrop for recreational activities while serving as a vital source of irrigation for the local community.
As an integral part of the water infrastructure in Rockingham County, Grogan Estate Lake Dam underscores the importance of proper maintenance and regulation in ensuring the safety and sustainability of our water resources. The dam's history of serving both practical and leisure purposes highlights the need for ongoing monitoring and risk management measures to protect the surrounding environment and communities relying on its water storage capabilities.
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 Grogan Estate Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Dan R At Pine Hall | 129 cfs | → |
| Mayo River Near Price | 101 cfs | → |
| Dan River Near Wentworth | 319 cfs | → |
| North Mayo River Near Spencer | 31 cfs | → |
| South Mayo River Near Nettleridge | 29 cfs | → |
| Smith River At Eden | 186 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Grogan Estate Lake Dam.
Boat launches
- Us Bus 220 Boat Access Stoneville
- Pine Hall Road 2547-2793, Walnut Cove
- Belews Lake Drive 8191, Belews Creek
- Bethlehem Church Road 587, Eden
- South Fieldcrest Road Draper Village
Campgrounds
- Sunset Park Campground
- Hanging Rock State Park
- Lake Reidsville Rec Park
- Ymca Camp Hanes
- Pilot Mountain State Park
- Goose Point - Philpott Lake
Fishing spots
Track Grogan Estate 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 Grogan Estate Lake Dam
Where does the data for Grogan Estate 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 Grogan Estate Lake Dam.