Pleasant Hill Dam - Auxiliary Spillway Fuse Plug Dike dam
Pleasant Hill Dam - Auxiliary Spillway Fuse Plug Dike
The Pleasant Hill Dam - Auxiliary Spillway Fuse Plug Dike in Perryville, Ohio, is a critical piece of infrastructure designed to manage excess water from the Clear Fork of the Mohican River. Completed in 2001 by the US Army Corps of Engineers, this earth dam stands at a height of 11 feet and has a spillway width of 415 feet, with a maximum discharge capacity of 55,000 cubic feet per second. The risk of failure is considered moderate to high, with erosion of the earthen spillway and dike identified as potential threats.
In the event of a spillway failure, low-lying areas of Perrysville could be inundated, and towns downstream, such as Greer, Brinkhaven, and Walhonding, would face escalating flood risks. Despite these dangers, the dam is regularly inspected and well-maintained by the USACE, ensuring that risk management measures are in place to mitigate potential hazards. The fuse plug dike offers residents ample warning time to evacuate, and the length of the auxiliary spillway reduces the likelihood of complete erosion, minimizing the threat of flooding to nearby communities.
Overall, the Pleasant Hill Dam - Auxiliary Spillway Fuse Plug Dike serves as a vital protective barrier against flooding in the region, highlighting the importance of ongoing maintenance and risk management efforts to safeguard both the dam and surrounding areas from potential water-related disasters.
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 Pleasant Hill Dam - Auxiliary Spillway Fuse Plug Dike -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Clear Fork Mohican River At Bellville Oh | 93 cfs | → |
| Kokosing River At Mount Vernon Oh | 335 cfs | → |
| Killbuck Creek At Killbuck Oh | 486 cfs | → |
| Black Fork Mohican River At Shelby Oh | 63 cfs | → |
| Whetstone Creek At Mt Gilead Oh | 50 cfs | → |
| North Fork Licking River At Utica Oh | 1,150 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Pleasant Hill Dam - Auxiliary Spillway Fuse Plug Dike.
Boat launches
Fishing spots
Track Pleasant Hill Dam - Auxiliary Spillway Fuse Plug Dike 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 Pleasant Hill Dam - Auxiliary Spillway Fuse Plug Dike
Where does the data for Pleasant Hill Dam - Auxiliary Spillway Fuse Plug Dike 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 Pleasant Hill Dam - Auxiliary Spillway Fuse Plug Dike.