Highway 75 Dam dam
Highway 75 Dam
The Highway 75 Dam, located in Lac qui Parle, Minnesota, is a crucial structure owned and managed by the US Army Corps of Engineers for flood risk reduction along the Minnesota River. Constructed in 1974, this earth dam stands at a height of 32 feet and spans a length of 16,160 feet, with a maximum storage capacity of 91,000 acre-feet and a normal storage of 11,700 acre-feet. The dam also serves multiple purposes, including flood risk reduction, fish and wildlife pond, recreation, and water supply.
With a controlled spillway type and low hazard potential, the Highway 75 Dam is regularly monitored and maintained by the US Army Corps of Engineers to manage dam-related flood risks effectively. The agency implements risk management measures by engaging with local emergency managers, updating emergency action plans, and conducting regular inspections and repairs to ensure the dam's structural integrity. Despite the dam's risk assessment of 'Very High (1)', the USACE's proactive approach to risk mitigation and public awareness aims to address potential issues and ensure the dam's continued functionality in the face of severe weather events and water management challenges.
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 Highway 75 Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Yellow Bank River Near Odessa | 64 cfs | → |
| Minnesota River At Ortonville | 87 cfs | → |
| Whetstone River Near Big Stone City | 69 cfs | → |
| Pomme De Terre River At Appleton | 211 cfs | → |
| Lac Qui Parle River Near Lac Qui Parle | 193 cfs | → |
| Minnesota River Near Lac Qui Parle | 924 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Highway 75 Dam.
Boat launches
- County Road 53 Big Stone County
- Rocky Point Big Stone City
- Swift County
- Roberts County
- 20th Street Northwest Chippewa County
Track Highway 75 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 Highway 75 Dam
Where does the data for Highway 75 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 Highway 75 Dam.