Queen Mary Dam Dam
Queen Mary Dam
Queen Mary Dam, located in Courtois, Missouri, is a privately owned structure built in 1959 to regulate the waters of the West Prong of Indian Creek. The dam is a rockfill type, standing at 66 feet tall and stretching 850 feet in length. It has a storage capacity of 8,407 acre-feet and serves multiple purposes, including flood control and water supply for the surrounding area.
Despite its age, Queen Mary Dam has been well maintained and is deemed to be in satisfactory condition as of the last assessment in 2007. The dam is regularly inspected by the Dam and Reservoir Safety Program in Missouri, ensuring its safety and functionality. With a high hazard potential due to its location and the volume of water it holds, the dam is equipped with an uncontrolled spillway to manage excess water flow during heavy rainfall events.
For water resource and climate enthusiasts, Queen Mary Dam presents a fascinating example of how infrastructure plays a crucial role in managing water resources and mitigating flood risks. Its strategic location in Iron County, Missouri, highlights the importance of maintaining and monitoring dams to ensure the safety and well-being of local communities. As climate change continues to impact weather patterns, structures like Queen Mary Dam will play a vital role in safeguarding against potential water-related disasters.
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 Queen Mary Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| East Fork Black River Nr Lesterville | 19 cfs | → |
| Meramec River At Cook Station | 90 cfs | → |
| Meramec River Near Steelville | 681 cfs | → |
| Big River At Irondale | 55 cfs | → |
| East Fork Black River At Lesterville | 44 cfs | → |
| Meramec River Near Sullivan | 1,960 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Queen Mary Dam.
Boat launches
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Campgrounds
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Fishing spots
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River runs
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More reservoirs
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About Queen Mary Dam
Where does the data for Queen Mary 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 High 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 below 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.
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.