Saganashkee Slough 2 Dam dam
Saganashkee Slough 2 Dam
Saganashkee Slough 2 Dam, located in Cook County, Illinois, along the Trib Calumet Sag Channel, was completed in 1948 and serves a primary purpose of recreation. Owned by the local government, this earth dam with a height of 8 feet and length of 30 feet provides a storage capacity of 2375 acre-feet, with a normal storage level of 718 acre-feet. Despite its low hazard potential, the dam is regulated by the Illinois Department of Natural Resources and undergoes periodic inspections to ensure its structural integrity.
Designed by Warren & Van Praag & C.S. Engineer, the Saganashkee Slough 2 Dam is a vital component of the local water resource infrastructure, offering recreational opportunities and contributing to the overall water management in the area. With no spillway present, the dam's risk assessment indicates a high level of risk (2), prompting the need for ongoing risk management measures to mitigate potential hazards. While the condition assessment is currently not available, the dam's emergency action plan status and inundation mapping preparedness remain undisclosed, highlighting areas for potential improvement in emergency response protocols.
As a key feature along the waterway, Saganashkee Slough 2 Dam plays a significant role in the local ecosystem and provides valuable recreational amenities for residents and visitors alike. With a notable history dating back to its construction in the mid-20th century, the dam continues to be a focal point for water resource and climate enthusiasts interested in understanding the intersection of infrastructure, recreation, and environmental stewardship in the region. Ongoing monitoring and management efforts ensure the dam's continued safety and functionality for the community it serves.
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 Saganashkee Slough 2 Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Flag Creek Near Willow Springs | 14 cfs | → |
| Sawmill Creek Near Lemont | 5 cfs | → |
| Long Run Near Lemont | 13 cfs | → |
| Tinley Creek Near Palos Park | 9 cfs | → |
| East Branch Du Page River At Bolingbrook | 110 cfs | → |
| Salt Creek At Western Springs | 204 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Saganashkee Slough 2 Dam.
Boat launches
- 107th Street Palos Township
- Mcguire Parkway Lemont Township
- Tri-State Tollway Justice
- Fairbank Road Riverside
- Dupage River Trail Bolingbrook
- South Halsted Street Riverdale
Campgrounds
- Camp Bullfrog Lake
- Pioneer Grove
- Blackwell Youth Campground
- Camp Shabbona Woods
- Des Plaines State Conservation Area
- Desplaines Conservational Park
Fishing spots
Track Saganashkee Slough 2 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 Saganashkee Slough 2 Dam
Where does the data for Saganashkee Slough 2 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 Saganashkee Slough 2 Dam.