Lake Koronis dam
Lake Koronis
Lake Koronis in Minnesota is a state-regulated water resource nestled in Meeker County, offering a serene setting for outdoor enthusiasts. With a primary purpose of recreation, this concrete dam constructed in 1989 stands at a height of 9 feet, providing a storage capacity of 90,000 acre-feet. The lake covers a surface area of 3034 acres with a drainage area of 307 acres, making it a vital water source in the region.
Managed by the Minnesota Department of Natural Resources, Lake Koronis boasts a low hazard potential and satisfactory condition assessment. The dam's inspection frequency is every 8 years, with the last assessment conducted in October 2017. The lake's recreational value is complemented by its scenic surroundings and proximity to the Crow River, attracting visitors seeking water-based activities and relaxation. Climate and water resource enthusiasts can appreciate Lake Koronis for its ecological significance and contribution to the local ecosystem.
As a prominent feature in the St. Paul District maintained by the state, Lake Koronis serves as a recreational haven while also playing a crucial role in water management and conservation efforts. With its tranquil waters and abundant natural beauty, this reservoir showcases the harmonious balance between human recreation and environmental preservation, making it a must-visit destination for those passionate about water resources and climate sustainability.
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 Koronis -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Sauk River Near St. Cloud | 517 cfs | → |
| Mississippi River At St. Cloud | 5,140 cfs | → |
| Mississippi River Near Royalton | 4,130 cfs | → |
| Long Prairie River At Long Prairie | 169 cfs | → |
| Crow River At Rockford | 1,430 cfs | → |
| Elk River Near Big Lake | 236 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lake Koronis.
Boat launches
- Beachside Road Meeker County
- Bluefield Road Stearns County
- Cedar Point Road 15561, Stearns County
- 253rd Avenue 25398, Stearns County
- 180th Street 24150, Stearns County
- Hutcheson Avenue Eden Valley
Campgrounds
- Lake Koronis Regional Park
- Sandy Point Park
- Green Lake County Park Campground
- Grove City Park Campground
- Diamond Lake County Park Campgrounds
- Lake Ripley County Park
Track Lake Koronis 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 Koronis
Where does the data for Lake Koronis 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 Koronis.