Lake Glacier Dam dam
Lake Glacier Dam
Lake Glacier Dam, located in Youngstown, Ohio, is a masonry dam completed in 1905 with a primary purpose of recreation. This historic dam spans 170 feet in length and stands at a height of 23.8 feet, creating a reservoir with a storage capacity of 494 acre-feet. The dam is situated on Mill Creek and is under the jurisdiction of the Department of Natural Resources in Ohio, with state permitting, inspection, and enforcement in place to ensure its safety and compliance with regulations.
With a low hazard potential and fair condition assessment as of the last inspection in 2016, Lake Glacier Dam continues to provide recreational opportunities for residents and visitors alike. The dam's reservoir covers 39.5 acres and is surrounded by a surface area of 79.6 square miles, offering a picturesque setting for outdoor activities. Despite its age, the dam remains a vital part of the local landscape and water resource infrastructure, with a normal storage capacity of 235 acre-feet and a maximum discharge rate of 7,290 cubic feet per second.
Lake Glacier Dam serves as a testament to the engineering ingenuity of its time and the ongoing efforts to maintain and regulate water resources in Ohio. As a key feature on Mill Creek, the dam not only provides recreational benefits but also plays a crucial role in managing water levels and flow in the region. With state oversight and a commitment to safety and compliance, Lake Glacier Dam stands as a symbol of sustainable water resource management in the face of changing climate conditions.
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 Lake Glacier Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Mahoning River Below West Ave At Youngstown Oh | 1,250 cfs | → |
| Mahoning River At Lowellville Oh | 1,440 cfs | → |
| Mahoning River At Leavittsburg Oh | 830 cfs | → |
| Mosquito Creek Bl Mosquito Ck Dam Nr Cortland Oh | 46 cfs | → |
| Mahoning River At Pricetown Oh | 308 cfs | → |
| Shenango River At Sharpsville | 480 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lake Glacier Dam.
Boat launches
- Bessemer Lake
- West Middlesex Access
- Pa 208;Pa 551 Pulaski
- Lake Milton State Park Ramp
- Lake Milton State Park - Robinson Point Ramp
- Mahaney Access
Campgrounds
- Mosquito Lake State Park
- Mill Creek - Berlin Reservoir
- Shenango
- Guilford Lake State Park
- West Branch State Park
- Kool Lakes Family Campground
Paddle runs
Track Lake Glacier 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 Lake Glacier Dam
Where does the data for Lake Glacier 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 Low 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 Lake Glacier Dam.