John Simpson Dam dam
John Simpson Dam
John Simpson Dam, located in Caldwell County, Missouri, is a privately owned earth dam completed in 1954 for fire protection, stock, and small fish pond purposes. With a height of 16 feet and a storage capacity of 128 acre-feet, this dam serves the community of Dawn by providing essential water resources while also contributing to the local ecosystem. Situated on the TR-Little Otter Creek, this structure plays a crucial role in managing water flow and maintaining water quality in the area.
Despite its low hazard potential, the condition of John Simpson Dam is currently not rated, indicating a need for further assessment and maintenance to ensure its long-term reliability and safety. With no state regulation or inspection in place, it is essential for the private owner to take proactive measures to monitor and address any potential risks or issues that may arise. The dam's location within the Rock Island District highlights its significance in the region's water resource management and underscores the importance of maintaining its functionality for the community's benefit.
As a key feature in the local water infrastructure, John Simpson Dam stands as a testament to the vital role of private owners in safeguarding water resources and adapting to changing climate conditions. With its historic significance and practical utility, this dam serves as a reminder of the interconnectedness between water management, environmental preservation, and community resilience in the face of evolving climate challenges. As enthusiasts and advocates for water resources and climate action, the conservation and sustainable management of structures like John Simpson Dam are crucial for ensuring a secure and sustainable water future for all.
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 John Simpson Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Shoal Creek Near Braymer Mo | 122 cfs | → |
| Grand River Near Gallatin | 5,020 cfs | → |
| Grand River At Chillicothe | 361 cfs | → |
| Little Platte River Near Plattsburg | 6 cfs | → |
| Thompson River At Trenton | 2,820 cfs | → |
| Crooked River Near Richmond | 55 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near John Simpson Dam.
Track John Simpson 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 John Simpson Dam
Where does the data for John Simpson 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 John Simpson Dam.