Hinnah Lake Dam dam
Hinnah Lake Dam
Hinnah Lake Dam, located in St. Charles County, Missouri, is a private-owned structure built in 1972 with the primary purpose of serving as a Fish and Wildlife Pond. Situated on TR-Bigelow Creek, this earth dam stands at a height of 30 feet and stretches 450 feet in length. With a storage capacity of 34 acre-feet, the dam also provides recreational opportunities in addition to its primary function.
Despite being categorized as having a low hazard potential, the dam's risk assessment is moderate, indicating a need for ongoing monitoring and maintenance. Currently, the condition of Hinnah Lake Dam is not rated, with no recent inspection data available. While the dam does not fall under state jurisdiction for regulation, it is essential for private owners to ensure that proper emergency action plans and risk management measures are in place to mitigate any potential risks to the surrounding community and environment.
As a key component in the local ecosystem, Hinnah Lake Dam plays a crucial role in supporting fish and wildlife populations while offering recreational activities for residents and visitors alike. By staying vigilant in its maintenance and management, the dam can continue to serve its intended purposes effectively, contributing to the overall sustainability and resilience of the region's water resources in the face of changing climate conditions.
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 Hinnah Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Bourbeuse River At Union | 329 cfs | → |
| Meramec River At Pacific | 1,360 cfs | → |
| Bonhomme Creek Near Ellisville | 3 cfs | → |
| Dardenne Creek At Ofallon | 185 cfs | → |
| Bonhomme Creek Near Clarkson Valley | 11 cfs | → |
| Caulks Creek At Chesterfield | 60 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Hinnah Lake Dam.
Boat launches
- Downtown Washington
- Stierberger Court Union
- Katy Trail 1800, Saint Charles County
- Buchheit Road 128, Franklin County
- Highway Uu Franklin County
- Brittany Place 1, Lake Saint Louis
Campgrounds
- Klondike County Park
- Babler Memorial State Park
- Robertsville State Park
- Camp Trinity
- St. Peters 370 Lakeside Park
- Backpack Camp 7
Paddle runs
Track Hinnah Lake 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 Hinnah Lake Dam
Where does the data for Hinnah Lake 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 Hinnah Lake Dam.