Sodus 21 & 28 dam
Sodus 21 & 28
Sodus 21 & 28, located in Lyon County, Minnesota, are vital structures managed by the local government for water resource management. These buttress dams on Meadow Creek-TR serve the purpose of roadway retention and are regulated by the Minnesota Department of Natural Resources. With a dam height of 22 feet and a storage capacity of 210 acre-feet, these dams play a crucial role in flood control and water storage in the region.
Although Sodus 21 & 28 have a low hazard potential, their condition assessment is currently not rated. The last inspection in April 2019 revealed no major issues, but their inspection frequency is set at every 8 years. As part of the emergency preparedness plan, it is important for the local authorities to regularly update their contact information and ensure that the dams meet safety guidelines to mitigate any potential risks associated with these structures.
Overall, Sodus 21 & 28 are essential components of the local water resource infrastructure in Minnesota. With proper monitoring, maintenance, and adherence to regulatory standards, these dams continue to serve their purpose effectively in managing water flow and protecting the surrounding areas from flooding. For water resource and climate enthusiasts, understanding the role and condition of these dams is crucial in ensuring sustainable water management practices in the region.
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 Sodus 21 & 28 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Redwood River Near Marshall | 27 cfs | → |
| Yellow Medicine River Near Granite Falls | 130 cfs | → |
| Redwood River Near Redwood Falls | 159 cfs | → |
| Flandreau Cr Above Flandreau Sd | 1 cfs | → |
| Minnesota River At Morton | 2,540 cfs | → |
| Minnesota River At Montevideo | 1,550 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Sodus 21 & 28.
Track Sodus 21 & 28 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 Sodus 21 & 28
Where does the data for Sodus 21 & 28 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 Sodus 21 & 28.