Dam Report

Lone Wolf dam

Minnesota, USA Tr-Rice River Hazard Low
Today high
--
Tonight low
--
Dam height
20ft
Hazard rating
Low
Loading current conditions…
Loading next 24 hours…
Loading 7-day outlook…
Lone Wolf -- None dam
Lone Wolf None · Tr-Rice River
About this dam

Lone Wolf

Lone Wolf is a Federal-owned Earth dam located in Itasca, Minnesota, with a primary purpose of serving as a Fish and Wildlife Pond. Built in 1991, this dam stands at a height of 20 feet and has a storage capacity of 427 acre-feet. It is situated on the TR-RICE RIVER and is maintained by the USDA Forest Service.

With a low hazard potential and a moderate risk assessment rating, Lone Wolf underwent structural modifications in 1999 to ensure its continued safety and functionality. The dam has a drainage area of 3 square miles and a maximum discharge capacity of 400 cubic feet per second. Despite being uncontrolled, the dam's spillway type is designed to handle any excess water flow.

Although not currently rated for its condition, Lone Wolf is inspected every 10 years, with the last assessment conducted in August 2013. With its strategic location and crucial role in supporting local wildlife, Lone Wolf serves as a vital water resource within the St. Paul District, making it a fascinating subject for water resource and climate enthusiasts to explore and appreciate.

StateNone
River / streamTr-Rice River
NID IDMN01699
Owner typeFederal
Primary purposeFish And Wildlife Pond
Dam typeEarth
Year built1991
Dam height20 ft
Dam length900 ft
Max storage427 AF
Normal storage200 AF
Surface area237.0 ac
Drainage area3.0 sq mi
Hazard potentialLow
ConditionNot Rated
Last inspectionMon, 05 Aug 2013 00:00:00 GMT

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.
Detailed forecast

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.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

Loading hourly forecast…
Deep dive

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.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
Loading detailed forecast…
Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

Loading 15-day outlook…
Regional inflow

Nearby streamflow gauges

USGS streamgauges around Lone Wolf -- inflows here typically show up in storage 24-72 hours later.

Track Lone Wolf 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.

FAQ

About Lone Wolf

Where does the data for Lone Wolf 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.

More reservoirs

Other water bodies near here

Snoflo-tracked reservoirs and dams within driving distance of Lone Wolf.