Piedmont Dam dam
Piedmont Dam
Piedmont Dam, also known as Piedmont Lake, is a vital structure in Harrison, Ohio, designed by US Army Corps of Engineers (CELRH) in 1937. Situated on the Stillwater Creek, this Federal-owned dam primarily serves the purpose of flood risk reduction, while also providing benefits for fish and wildlife, recreation, and water storage. With a hydraulic height of 45 feet and a structural height of 56 feet, the dam has a length of 1750 feet and a storage capacity of 67,000 acre-feet.
Managed by the US Army Corps of Engineers, Piedmont Dam has a high hazard potential and is subject to regular inspections and emergency action plans. The dam's risk management measures include continuous monitoring, prioritized maintenance activities, and collaboration with local emergency managers to ensure public safety in case of a dam-related emergency. Recognizing the role of dams in flood risk mitigation, the USACE takes proactive steps to address potential issues and ensure the structural integrity of the Piedmont Dam for the surrounding community.
With a focus on risk assessment and management, Piedmont Dam stands as a critical infrastructure for flood control and water resource management in the region. By implementing proactive measures and engaging with stakeholders, the US Army Corps of Engineers demonstrates its commitment to safeguarding the dam and addressing potential challenges arising from severe weather events or structural vulnerabilities.
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 Piedmont Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Stillwater Creek At Piedmont Oh | 73 cfs | → |
| Boggs Fork At Piedmont Oh | 17 cfs | → |
| Brushy Fork Near Tippecanoe Oh | 36 cfs | → |
| Stillwater Creek At Tippecanoe Oh | 121 cfs | → |
| Mcguire Creek Near Leesville Oh | 42 cfs | → |
| Leatherwood Creek Near Kipling Oh | 18 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Piedmont Dam.
Boat launches
- Reynolds Road Launch Ramp
- Kirkwood Ramp
- County Rd 6 Ramp
- Tappan Park Launch Ramp
- Barnesville Memorial Park
- Barkcamp State Park
Campgrounds
- Petersburg Boat Landing
- Atwood Lake Campground (Main Gate)
- Abc Country Camping And Cabins
- Jefferson Lake State Park
- Harrison Hills Campground
Track Piedmont 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 Piedmont Dam
Where does the data for Piedmont 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 Piedmont Dam.