Johnson-Ronhovde Wetland dam
Johnson-Ronhovde Wetland
The Johnson-Ronhovde Wetland, located in Grant County, Minnesota, is a privately owned fish and wildlife pond that serves as a vital water resource in the area. Constructed in 2001 by the Soil and Water Conservation District (SWCD), this Earth dam stands at a height of 10 feet and has a spillway width of 20 feet. With a normal storage capacity of 101 acre-feet and a maximum discharge rate of 140 cubic feet per second, this wetland plays a crucial role in supporting local ecosystems and maintaining water balance in the region.
Managed by the Minnesota Department of Natural Resources (MNDNR EWR), the Johnson-Ronhovde Wetland is regularly inspected for safety and functionality, with a hazard potential rated as low and a satisfactory condition assessment. Despite its relatively low risk profile, the wetland presents a very high risk in terms of its importance as a water resource and habitat for wildlife. With a drainage area of 0.14 square miles and a surface area of 41 acres, this wetland contributes to the overall health of the Mustinka River and surrounding ecosystems, making it a valuable asset for conservationists and climate enthusiasts alike.
As part of its risk management measures, the Johnson-Ronhovde Wetland undergoes inspections every 8 years to ensure its continued safety and effectiveness. With a commitment to meeting regulatory standards and maintaining high-quality water resources, this wetland serves as a model for sustainable water management practices in the region. For water resource and climate enthusiasts, the Johnson-Ronhovde Wetland represents a valuable asset in the fight against climate change and the preservation of critical ecosystems in Minnesota.
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 Johnson-Ronhovde Wetland -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Otter Tail River Bl Orwell D Nr Fergus Falls | 489 cfs | → |
| Bois De Sioux River Near White Rock | 5 cfs | → |
| Otter Tail River Near Elizabeth | 331 cfs | → |
| Bois De Sioux River Near Doran | 46 cfs | → |
| Red River Of The North At Wahpeton | 594 cfs | → |
| Minnesota River At Ortonville | 84 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Johnson-Ronhovde Wetland.
Boat launches
- Twin Lakes Road Southwest Douglas County
- Viking Trail 16246, Douglas County
- Douglas County
- Viking Trail Douglas County
- Brophy Park Road Northwest 1599, Douglas County
- Latoka Beach Road Southwest 3078, Douglas County
Track Johnson-Ronhovde Wetland 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 Johnson-Ronhovde Wetland
Where does the data for Johnson-Ronhovde Wetland 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 Johnson-Ronhovde Wetland.