Grindstone-Lost-Muddy Watershed Dam C-39b dam
Grindstone-Lost-Muddy Watershed Dam C-39b
Grindstone-Lost-Muddy Watershed Dam C-39b, located in DeKalb County, Missouri, stands as a critical infrastructure managed by the local government for grade stabilization along the TR-LOST CREEK. Built in 1975 by USDA NRCS, this earth dam with a stone core stands at a height of 20 feet and spans 500 feet in length, providing a storage capacity of 93 acre-feet to manage runoff from its 380-acre drainage area. Despite its low hazard potential and moderate risk assessment, the dam's condition remains unrated, with no recent inspections to assess its structural integrity.
This uncontrolled spillway dam plays a vital role in mitigating erosion and sedimentation within the watershed, helping to maintain water quality and regulate flow downstream. Although not regulated or inspected by state authorities, its primary purpose of grade stabilization underscores its importance in protecting local water resources and aquatic habitats. With a history of federal funding and oversight from the Natural Resources Conservation Service, Grindstone-Lost-Muddy Watershed Dam C-39b serves as a testament to collaborative efforts in sustainable water management within the region.
As climate and water resource enthusiasts continue to monitor and advocate for resilient infrastructure, Grindstone-Lost-Muddy Watershed Dam C-39b stands as a focal point for ongoing maintenance and risk management. With its strategic location in Pattonburg and close proximity to the Rock Island District, this dam serves as a symbol of environmental stewardship and community resilience in the face of evolving climate challenges. As stakeholders work towards ensuring the long-term sustainability of this essential structure, its role in safeguarding local ecosystems and water supplies remains paramount in the broader context of watershed management and climate adaptation efforts.
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 Grindstone-Lost-Muddy Watershed Dam C-39b -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Platte River Near Agency | 21,700 cfs | → |
| Missouri River At St. Joseph | 82,500 cfs | → |
| One Hundred And Two River At Maryville | 3,360 cfs | → |
| Grand River Near Gallatin | 28,000 cfs | → |
| East Fork Big Creek Near Bethany | 684 cfs | → |
| Little Platte River Near Plattsburg | 117 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Grindstone-Lost-Muddy Watershed Dam C-39b.
Track Grindstone-Lost-Muddy Watershed Dam C-39b 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 Grindstone-Lost-Muddy Watershed Dam C-39b
Where does the data for Grindstone-Lost-Muddy Watershed Dam C-39b 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 Grindstone-Lost-Muddy Watershed Dam C-39b.