Berlin Dam dam
Berlin Dam
Berlin Dam, also known as Berlin Lake, is a gravity dam located in Mahoning, Ohio, with a primary purpose of flood risk reduction. Completed in 1943 by the US Army Corps of Engineers, the dam stands at a structural height of 96 feet and has a hydraulic height of 94 feet. With a dam length of 5750 feet and a storage capacity of 140,000 acre-feet, Berlin Dam plays a crucial role in managing water levels on the Mahoning River.
The dam features a controlled spillway, outlet gates, and a hazard potential classified as high. USACE actively manages dam-related flood risks by monitoring the dam's condition, prioritizing risk-reducing activities, and collaborating with local emergency managers to ensure readiness in the event of an emergency. Regular inspections and maintenance are conducted to uphold the dam's integrity and functionality. Berlin Dam serves as a vital infrastructure for flood control, recreation, and water supply in the region, highlighting the essential role of water resource management in mitigating natural disasters and safeguarding communities from potential hazards.
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 Berlin Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Mahoning River Bl Berlin Dam Nr Berlin Center Oh | 101 cfs | → |
| Mahoning River At Pricetown Oh | 171 cfs | → |
| West Branch Mahoning River At Wayland Oh | 99 cfs | → |
| Mahoning River At Leavittsburg Oh | 454 cfs | → |
| Eagle Creek At Phalanx Station Oh | 122 cfs | → |
| Mahoning River Below West Ave At Youngstown Oh | 756 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Berlin Dam.
Boat launches
- Berlin Lake Boat Ramp
- Lake Milton State Park - Robinson Point Ramp
- Lake Milton State Park Ramp
- West Ramp
- West Branch State Park - Fishermans Lot
- Lake Hodgson
Campgrounds
- Mill Creek - Berlin Reservoir
- West Branch State Park
- Guilford Lake State Park
- Camp Asbury
- Kool Lakes Family Campground
- Mosquito Lake State Park
Fishing spots
Paddle runs
Track Berlin 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 Berlin Dam
Where does the data for Berlin 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 Berlin Dam.