Grande Park Subdivision Detention As-7 Dam dam
Grande Park Subdivision Detention As-7 Dam
Located in Plainfield, Illinois, the Grande Park Subdivision Detention As-7 Dam serves as a vital structure for flood risk reduction in the area. Constructed in 2004 by COWHEY GUDMUNDSON LEDER, LTD., this earth dam stands at a height of 7.8 feet and spans a length of 750 feet. With a storage capacity of 114 acre-feet and a drainage area of 1.32 square miles, this dam plays a crucial role in managing water flow and mitigating potential flooding events along the EAST TRIB EAST BR AUX SABLE CR watershed.
The dam features an uncontrolled spillway type with a width of 197 feet, allowing for the release of excess water during high flow conditions. While the hazard potential is classified as low, the risk assessment indicates a moderate level of risk (3). The dam is inspected every five years, with the last inspection conducted in July 2019. Despite the absence of a condition assessment, the Grande Park Subdivision Detention As-7 Dam remains a key infrastructure for flood control in Kendall County, Illinois, ensuring the safety and protection of residents in the region.
As a privately owned structure regulated by the Illinois Department of Natural Resources (IDNR), the Grande Park Subdivision Detention As-7 Dam exemplifies the collaboration between private entities and state agencies in managing water resources and enhancing climate resilience. With its strategic location and design features, this dam not only reduces flood risks but also contributes to the overall water management efforts in the area. As climate change continues to impact water systems, structures like the Grande Park Subdivision Detention As-7 Dam play a crucial role in safeguarding communities and promoting sustainable water resource practices in Illinois.
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 Grande Park Subdivision Detention As-7 Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Fox River At Montgomery | 1,300 cfs | → |
| Spring Brook At 87th Street Near Naperville | 5 cfs | → |
| Blackberry Creek Near Montgomery | 26 cfs | → |
| Du Page River At Shorewood | 310 cfs | → |
| Blackberry Creek Near Yorkville | 34 cfs | → |
| West Branch Du Page River Near Naperville | 51 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Grande Park Subdivision Detention As-7 Dam.
Boat launches
- Dupage River Trail Naperville
- Sundown Lane 7277, Kendall County
- Fox River Trail Aurora
- Dupage River Trail Bolingbrook
- West Shepley Road Channahon
- Silver Springs Boat Ramp
Campgrounds
- Blackwell Youth Campground
- Des Plaines State Conservation Area
- Camp Bullfrog Lake
- Pioneer Grove
- Desplaines Conservational Park
- Tony's Cabin
Fishing spots
Track Grande Park Subdivision Detention As-7 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 Grande Park Subdivision Detention As-7 Dam
Where does the data for Grande Park Subdivision Detention As-7 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 Grande Park Subdivision Detention As-7 Dam.