Norman Twp 7 dam
Norman Twp 7
Norman Twp 7, located in Yellow Medicine County, Minnesota, is a privately owned dam regulated by the Minnesota Department of Natural Resources. This rockfill dam stands at 21.2 feet in height and serves the primary purpose of flood risk reduction along Lazarus Creek. With a storage capacity of 61 acre-feet and a surface area of 3 acres, the dam plays a crucial role in mitigating potential flooding in the area.
Despite its low hazard potential, Norman Twp 7 has not been rated for its condition assessment as of the last inspection in May 2019. The dam has not undergone any modifications in recent years and lacks certain emergency preparedness measures such as an Emergency Action Plan (EAP) and inundation maps. However, with state permitting, inspection, and enforcement in place, the dam continues to function efficiently in reducing flood risks for the surrounding community.
As water resource and climate enthusiasts, the data on Norman Twp 7 provides valuable insights into the infrastructure and management of dams in Minnesota. Understanding the importance of maintaining and improving these structures is crucial for ensuring the safety and resilience of communities in the face of changing weather patterns and increasing flood risks. Monitoring the condition and emergency preparedness of dams like Norman Twp 7 is essential for sustainable water resource management and climate adaptation efforts 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 Norman Twp 7 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Lac Qui Parle River Near Lac Qui Parle | 193 cfs | → |
| Redwood River Near Marshall | 34 cfs | → |
| Big Sioux River Near Bruce | 265 cfs | → |
| Minnesota River Near Lac Qui Parle | 924 cfs | → |
| Minnesota River At Montevideo | 1,340 cfs | → |
| Chippewa River Near Watson | 400 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Norman Twp 7.
Boat launches
- Deuel County
- West Cottage Avenue Hendricks
- County Road 14 1104, Lincoln County
- Brookings County
- Picnic Point Road Lincoln County
Campgrounds
- Stonehill Regional Park Campground
- Laek Hendricks City Park
- Lake Hendricks Lua_Gfp
- Veterans' Park Campground
- Dawson City Park. Campground
- J F Jacobson City Park
More reservoirs
Track Norman Twp 7 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 Norman Twp 7
Where does the data for Norman Twp 7 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 Norman Twp 7.