Montgomery Dam dam
Montgomery Dam
Montgomery Dam, located in Kane County, Illinois, along the Fox River, serves as a vital structure for flood risk reduction in the region. Completed in 1969, this gravity dam stands at 7 feet tall and stretches 325 feet in length, with a storage capacity of 131 acre-feet. The dam, designed by DWR & DAILY & ASSOC., is regulated by the Illinois Department of Natural Resources and undergoes regular inspections to ensure its structural integrity and functionality.
With a spillway width of 365 feet, the uncontrolled spillway of Montgomery Dam plays a crucial role in managing water levels during times of increased flow. The dam has been deemed to have a significant hazard potential and a moderate risk level, prompting the implementation of risk management measures. Despite the lack of a detailed condition assessment, Montgomery Dam continues to fulfill its primary purpose of flood risk reduction, safeguarding the surrounding communities from potential water-related disasters.
As water resource and climate enthusiasts, the importance of Montgomery Dam lies in its contribution to the overall resilience of the area against flooding events. The dam's presence not only helps mitigate flood risks but also highlights the collaborative efforts between the state agencies and designers to uphold the safety and well-being of the residents along the Fox River. As the dam continues to be monitored and maintained, its role in water resource management and climate adaptation remains a cornerstone in ensuring the sustainable development of 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 Montgomery Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Fox River At Montgomery | 1,300 cfs | → |
| Blackberry Creek Near Montgomery | 26 cfs | → |
| Blackberry Creek Near Yorkville | 34 cfs | → |
| Mill Creek Near Batavia | 7 cfs | → |
| Spring Brook At 87th Street Near Naperville | 5 cfs | → |
| West Br Du Page River Near Warrenville | 54 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Montgomery Dam.
Boat launches
- Fox River Trail Aurora
- Sundown Lane 7277, Kendall County
- Dupage River Trail Naperville
- Fox River Trail Geneva
- Creekside Court Blackberry Township
- North River Lane Geneva
Campgrounds
- Blackwell Youth Campground
- Camp Bullfrog Lake
- Pioneer Grove
- Des Plaines State Conservation Area
- Desplaines Conservational Park
- Tony's Cabin
Fishing spots
Track Montgomery 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 Montgomery Dam
Where does the data for Montgomery 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 Significant 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 Montgomery Dam.