Rasmussen Lake Dam dam
Rasmussen Lake Dam
Rasmussen Lake Dam, also known as Elmwood Farms Lake Dam, is a private dam located in Millburn-Offstream, Illinois. Completed in 1965, this earth dam stands at a height of 19 feet and stretches 600 feet in length, creating a storage capacity of 370 acre-feet for recreational purposes. Situated on North Mill Creek, the dam is regulated by the Illinois Department of Natural Resources and undergoes regular inspections to ensure its integrity and safety.
With a low hazard potential and a moderate risk assessment rating, Rasmussen Lake Dam poses minimal risk to surrounding areas in the event of a failure. Despite the lack of available condition assessment data, the dam's emergency action plan status and risk management measures remain unspecified. The dam features an uncontrolled spillway with a width of 27 feet, providing a controlled release of water during high flow events to prevent overtopping and potential flooding downstream.
Water resource and climate enthusiasts interested in Rasmussen Lake Dam will find it to be a key component in the local recreational landscape, offering opportunities for fishing, boating, and other outdoor activities. While the dam's condition assessment and emergency preparedness status may need further clarification, its low hazard potential and regulated status indicate a commitment to maintaining its safety and function for both recreational and environmental purposes. The dam's location in Lake County, Illinois, within the Detroit District of the US Army Corps of Engineers, underscores its importance in managing water resources 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 Rasmussen Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Mill Creek At Old Mill Creek | 24 cfs | → |
| Des Plaines River At Russell | 12 cfs | → |
| Des Plaines River Near Gurnee | 119 cfs | → |
| Nippersink Creek Near Spring Grove | 169 cfs | → |
| Pike River Near Racine | 12 cfs | → |
| Fox River Near New Munster | 466 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Rasmussen Lake Dam.
Boat launches
- Blue Loop Lake County
- West Wadsworth Road Lake County
- North Lake Avenue 39, Third Lake
- Benet Lake Boat Launch
- George Lake Boat Launch
- North Sears Boulevard 33435, Grayslake
Campgrounds
- Fourth Lake Resort Campsite
- Mud Lake West
- North Branch Conservation Area (Cyclists Only)
- The Hollows Conservation Area Campground
- Camp Reinberg
- Rv Camping @ Big Foot Beach State Park
Fishing spots
Track Rasmussen Lake 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 Rasmussen Lake Dam
Where does the data for Rasmussen Lake 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 Rasmussen Lake Dam.