Horse Run No. 1 Dam Mb-42 dam
Horse Run No. 1 Dam Mb-42
Horse Run No. 1 Dam Mb-42 is a privately owned dam located in Unionville, Morgan County, Ohio. Built in 1952 by the Ohio Power Company, this earth dam stands at a height of 59.9 feet and has a length of 750 feet. Its primary purpose is for tailings, with a normal storage capacity of 225 acre-feet and a maximum discharge capability of 1414 cubic feet per second.
The dam is regulated by the Department of Natural Resources in Ohio and undergoes regular inspections, with the last assessment in October 2018 rating its condition as fair. With a significant hazard potential, the dam has an emergency action plan in place, although details on its adherence to guidelines and risk management measures are not specified in the data. The surrounding area has a drainage area of 2.6 square miles, and the dam impounds Horse Run, a local river or stream, creating a surface area of 27 acres.
Overall, Horse Run No. 1 Dam Mb-42 serves as a vital structure for water resource management in the region, highlighting the importance of private ownership in maintaining and regulating such critical infrastructure. For water resource and climate enthusiasts, this dam presents an intriguing case study of a mid-century earth dam that continues to play a significant role in flood control and water storage in Ohio.
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 Horse Run No. 1 Dam Mb-42 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Muskingum River At Mcconnelsville Oh | 5,220 cfs | → |
| Salt Creek Near Chandlersville Oh | 26 cfs | → |
| Muskingum River At Beverly Oh | 5,490 cfs | → |
| West Fork Duck Creek At Macksburg Oh | 30 cfs | → |
| Seneca Fork Bl Senecaville Dam Near Senecaville Oh | 9 cfs | → |
| Wills Creek At Cambridge Oh | 28 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Horse Run No. 1 Dam Mb-42.
Boat launches
- Mcconnelsville Lock And Dam Ramp No.7
- Malta Ramp
- Beverly Ramp
- Noble County Fish And Game
- Us 22 Wildlife Acess Ramp
- Salt Fork State Park - Campground Ramp
Campgrounds
- Woodgrove Campground H
- Area 31 Campsite
- Burr Oak State Park
- Burr Oak Cove Campground
- Lane Farm Campground
- Lamping Homestead Recreation Area
Track Horse Run No. 1 Dam Mb-42 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 Horse Run No. 1 Dam Mb-42
Where does the data for Horse Run No. 1 Dam Mb-42 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 Horse Run No. 1 Dam Mb-42.