Heitmans Pond Dam dam
Heitmans Pond Dam
Heitmans Pond Dam, located in St. Clair County, Illinois, is a privately owned earth dam constructed in 1974 by the USDA NRCS. The dam, with a height of 30 feet and a length of 225 feet, serves primarily for recreational purposes, providing a surface area of 14 acres and a maximum storage capacity of 223 acre-feet. Situated on the TRIB NEGRO HOLLOW stream, the dam is regulated by the Illinois Department of Natural Resources and undergoes regular inspections to ensure its structural integrity.
With a significant hazard potential and a moderate risk assessment rating, Heitmans Pond Dam features an uncontrolled spillway with a width of 70 feet and a maximum discharge capacity of 625 cubic feet per second. Despite the lack of a condition assessment, the dam's emergency action plan status and adherence to guidelines remain undisclosed. The dam's risk management measures and inundation maps preparation status also require further clarification for effective emergency response and mitigation strategies in case of potential flooding events.
Water resource and climate enthusiasts can appreciate Heitmans Pond Dam as a vital recreational infrastructure in the region, contributing to water storage and flood control efforts. The dam's association with the USDA NRCS and its regulatory oversight by the IDNR highlight the collaborative efforts in ensuring the safety and functionality of the structure. As discussions on climate change and water resource management continue to evolve, understanding the role of dams like Heitmans Pond in the broader context of ecosystem health and resilience becomes increasingly crucial for sustainable development and adaptation strategies.
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 Heitmans Pond Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Mississippi River At St. Louis | 221,000 cfs | → |
| Judys Branch At Rte 157 At Glen Carbon | 0 cfs | → |
| Silver Creek Near Troy | 34 cfs | → |
| Silver Creek Near Freeburg | 155 cfs | → |
| River Des Peres At St. Louis | 4,340 cfs | → |
| Gravois Creek Near Mehlville | 6 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Heitmans Pond Dam.
Track Heitmans Pond 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 Heitmans Pond Dam
Where does the data for Heitmans Pond 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 Heitmans Pond Dam.