Clarence J. Brown Dam dam
Clarence J. Brown Dam
Clarence J. Brown Dam, also known as Clarence J Brown Reservoir, is a federal-owned structure located in Clark County, Ohio, near the city of Springfield. Completed in 1973 by the US Army Corps of Engineers, this earth dam serves primarily for flood risk reduction along Buck Creek. With a hydraulic height of 70 feet and a structural height of 98 feet, the dam holds a normal storage capacity of 36,900 acre-feet and covers a surface area of 2,120 acres.
The dam features an uncontrolled spillway and is equipped with one vertical lift outlet gate. Despite its high hazard potential, the dam has an Emergency Action Plan (EAP) in place, meeting guidelines and preparedness standards. The US Army Corps of Engineers actively manages flood risks associated with the dam, regularly inspecting and maintaining its structural integrity. Managing water levels and collaborating with local emergency managers, the agency prioritizes risk reduction measures and community awareness to ensure preparedness for any potential dam-related emergencies.
In the event of severe weather events or increased water inflow, the dam may release water downstream to manage pressure and maintain its functionality. The risk management measures outlined for Clarence J. Brown Dam emphasize a proactive approach to monitoring and addressing potential risks, as well as engaging with the public and emergency responders to enhance readiness and response capabilities. As part of the US Army Corps of Engineers' ongoing efforts, additional details specific to this dam will be provided at a future time to further enhance its risk assessment and management.
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 Clarence J. Brown Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Mad River At St Paris Pike At Eagle City Oh | 228 cfs | → |
| Mad River Near Springfield Oh | 356 cfs | → |
| Mad River Near Urbana Oh | 126 cfs | → |
| Little Miami River Near Oldtown Oh | 99 cfs | → |
| Massies Creek At Wilberforce Oh | 46 cfs | → |
| Mad River At West Liberty Oh - 03266560 | 25 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Clarence J. Brown Dam.
Track Clarence J. Brown 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 Clarence J. Brown Dam
Where does the data for Clarence J. Brown 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 Clarence J. Brown Dam.