Evans Lake Dam dam
Evans Lake Dam
Evans Lake Dam, situated in Mahoning County, Ohio, serves as a crucial water supply source in the region. Constructed in 1948, this earth dam stands at a height of 49 feet and has a length of 3860 feet, creating a storage capacity of 12,574 acre-feet. With a primary purpose of water supply, the dam overlooks Yellow Creek, with a drainage area of 14.1 square miles and a maximum discharge capacity of 10,772 cubic feet per second.
Managed by the Department of Natural Resources in Ohio, Evans Lake Dam has a high hazard potential but is currently assessed as being in satisfactory condition. The dam is subject to regular inspections every five years to ensure its structural integrity and public safety. Despite its age, the dam continues to meet the water supply needs of the surrounding community while adhering to state regulations and enforcement protocols.
As a vital infrastructure in the area, Evans Lake Dam plays a crucial role in water resource management and climate resilience efforts. With its historical significance and continued functionality, the dam stands as a testament to the importance of sustainable water supply practices in safeguarding communities against the impacts of a changing climate.
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 Evans Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Mahoning River At Lowellville Oh | 1,770 cfs | → |
| Mahoning River Below West Ave At Youngstown Oh | 1,630 cfs | → |
| Beaver River At Wampum | 3,260 cfs | → |
| Mahoning River Bl Berlin Dam Nr Berlin Center Oh | 507 cfs | → |
| Shenango River At Sharpsville | 480 cfs | → |
| Mahoning River At Pricetown Oh | 626 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Evans Lake Dam.
Boat launches
- Bessemer Lake
- Pa 208;Pa 551 Pulaski
- West Middlesex Access
- Bevington Boat Access
- Alduk Access
- Lake Milton State Park Ramp
Campgrounds
- Beaver Creek State Park
- Guilford Lake State Park
- Mill Creek - Berlin Reservoir
- Harts Content Campground
- Shenango
- Mosquito Lake State Park
Paddle runs
Track Evans Lake 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 Evans Lake Dam
Where does the data for Evans Lake 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 Evans Lake Dam.