Lake Grant Dam dam
Lake Grant Dam
Lake Grant Dam, located in White Oak Valley, Ohio, is a state-regulated structure managed by the Department of Natural Resources. Built in 1948 by the Ohio Department of Highways, this earth dam stands at 32 feet tall and stretches 600 feet in length, creating a reservoir with a normal storage capacity of 1250 acre-feet. Primarily serving the purpose of recreation, the dam on Sterling Run offers various water-based activities within its 163-acre surface area.
With a significant hazard potential but a satisfactory condition assessment as of June 2018, Lake Grant Dam undergoes inspections every five years to ensure its safety and structural integrity. The dam has a drainage area of 25.75 square miles and a maximum discharge capacity of 13,369 cubic feet per second. Despite its age, Lake Grant Dam continues to be a vital water resource for the community, providing both recreational opportunities and essential water storage for the region.
As a cornerstone of the local water infrastructure, Lake Grant Dam plays a crucial role in flood control and water management in Brown County, Ohio. Its construction was completed over seven decades ago, and with ongoing state regulation and maintenance, the dam continues to serve as a vital asset for the surrounding area. Enthusiasts of water resources and climate will appreciate the resilience and importance of Lake Grant Dam in sustaining both recreational and ecological needs in the region.
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 Lake Grant Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| White Oak Creek Above Georgetown Oh | 60 cfs | → |
| East Fork Little Miami River At Williamsburg Oh | 31 cfs | → |
| East Fork Little Miami River At Perintown Oh | 561 cfs | → |
| Twelvemile Creek At Highway 1997 Nr Alexandria | 48 cfs | → |
| Little Miami River At Milford Oh | 3,810 cfs | → |
| Fourmile Creek At Poplar Ridge Rd Nr Alexandria | 11 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lake Grant Dam.
Track Lake Grant 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 Lake Grant Dam
Where does the data for Lake Grant 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 Significant 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 Lake Grant Dam.