Clendening Dam dam
Clendening Dam
Clendening Dam, also known as Clendening Lake, is a federal-owned structure located in Harrison County, Ohio. Completed in 1936, the dam serves primarily for flood risk reduction, but also supports fish and wildlife pond creation and recreational activities. With a hydraulic height of 57 feet and a structural height of 64 feet, the dam spans 950 feet in length and has a storage capacity of 54,000 acre-feet.
Despite its age, Clendening Dam is actively managed and monitored by the US Army Corps of Engineers to ensure its safety and reliability. A risk assessment conducted in 2016 classified the dam's failure risk as moderate, highlighting potential impacts on downstream communities in Ohio. To manage this risk, the Corps implements a range of measures such as regular inspections, instrumentation monitoring, and emergency response training with local and state agencies. An Interim Risk Reduction Measures Plan is also being implemented to address specific risk concerns while long-term remedial actions are pursued.
With a focus on improving dam robustness and emergency preparedness, Clendening Dam represents a critical piece of infrastructure that is being actively managed to safeguard communities and water resources in the region. The ongoing efforts to enhance risk management and emergency response capabilities demonstrate a commitment to ensuring the safety and resilience of this vital water resource structure.
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 Clendening Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Brushy Fork Near Tippecanoe Oh | 36 cfs | → |
| Stillwater Creek At Tippecanoe Oh | 121 cfs | → |
| Stillwater Creek At Piedmont Oh | 73 cfs | → |
| Boggs Fork At Piedmont Oh | 17 cfs | → |
| Mcguire Creek Near Leesville Oh | 42 cfs | → |
| Tuscarawas River At New Philadelphia Oh | 1,730 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Clendening Dam.
Boat launches
- County Rd 6 Ramp
- Tappan Park Launch Ramp
- Reynolds Road Launch Ramp
- Kirkwood Ramp
- Salt Fork State Park - Rocky Fork Access
- Salt Fork State Park - North Salem Ramp
Campgrounds
- Petersburg Boat Landing
- Atwood Lake Campground (Main Gate)
- Abc Country Camping And Cabins
- Harrison Hills Campground
- Forest Hills Lake Camp
- Jefferson Lake State Park
Track Clendening 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 Clendening Dam
Where does the data for Clendening 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 Clendening Dam.