Pool No. 8 dam
Pool No. 8
Pool No. 8, also known as Agassiz, is a Federal-owned fish and wildlife pond located in Thief River Falls, Minnesota. Constructed in 1980 by the US Fish and Wildlife Service, this Earth dam stands at a height of 13 feet and spans a length of 12,000 feet. With a storage capacity of 3,000 acre-feet and a surface area of 530 acres, this pond serves as a vital habitat for various aquatic species in the region.
Managed by the Omaha District of the US Army Corps of Engineers, Pool No. 8 plays a crucial role in conservation efforts within the Thief River watershed. Despite its low hazard potential, the risk assessment for this structure indicates a very high risk, highlighting the importance of regular inspections and proper maintenance. While the dam's condition is currently not rated, it is clear that this water resource is of significant ecological value and requires careful management to ensure its long-term sustainability.
For water resource and climate enthusiasts, Pool No. 8 presents an intriguing case study in environmental stewardship and habitat preservation. With its controlled spillway, the dam helps regulate water flow and maintain stable water levels for the benefit of wildlife and aquatic ecosystems. As part of the broader conservation efforts in the region, this Federal-owned pond serves as a vital resource for both the local community and the diverse flora and fauna that call the Thief River watershed home.
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 Pool No. 8 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Thief River Near Thief River Falls | 61 cfs | → |
| Red Lake River At High Landing Nr Goodridge | 308 cfs | → |
| Clearwater River At Plummer | 98 cfs | → |
| Clearwater River At Red Lake Falls | 229 cfs | → |
| Roseau River Below South Fork Near Malung | 44 cfs | → |
| Lost River At Oklee | 48 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Pool No. 8.
Boat launches
Campgrounds
- Holt Park
- Middle River Park
- Strathcona City Park
- Thief River Falls Scenic Tourist Park
- Grygla Camping Area
- Ralph J. Klein City Park
More reservoirs
Track Pool No. 8 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 Pool No. 8
Where does the data for Pool No. 8 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 Pool No. 8.