Wellington-Napoleon Watershed Dam J-21 dam
Wellington-Napoleon Watershed Dam J-21
Wellington-Napoleon Watershed Dam J-21, located in Lafayette County, Missouri, is a Grade Stabilization earth dam with a height of 26 feet and a length of 670 feet. Built in 1970 by the USDA NRCS, this dam serves as a vital resource for flood control and sediment retention along the TR-SNI-A-BAR CREEK. With a maximum storage capacity of 288 acre-feet and a drainage area of 250 acres, the dam plays a crucial role in water management within the region.
Although classified as having a low hazard potential, the dam's risk assessment is rated as moderate. Despite being unregulated by the state, the dam is not currently inspected or assessed for condition. The absence of emergency action plans and risk management measures raises concerns about the dam's ability to respond to potential hazards or disasters. However, the dam's primary purpose of Grade Stabilization highlights its importance in maintaining water quality and flow control within the watershed.
As water resource and climate enthusiasts, it is essential to recognize the significance of Wellington-Napoleon Watershed Dam J-21 in preserving the ecological balance and hydrological integrity of the area. With its strategic location and design, the dam serves as a critical infrastructure for water management and conservation efforts in Lafayette County. Continued monitoring and maintenance of this dam are crucial to ensuring its long-term effectiveness and resilience in the face of changing environmental conditions and water resource challenges.
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 Wellington-Napoleon Watershed Dam J-21 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Little Blue River Near Lake City | 510 cfs | → |
| East Fork Little Blue River Nr Blue Springs | 10 cfs | → |
| Crooked River Near Richmond | 398 cfs | → |
| Blue River At Stadium Drive In Kc | 643 cfs | → |
| Blue River At Kansas City | 407 cfs | → |
| Missouri River At Kansas City | 122,000 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Wellington-Napoleon Watershed Dam J-21.
Track Wellington-Napoleon Watershed Dam J-21 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 Wellington-Napoleon Watershed Dam J-21
Where does the data for Wellington-Napoleon Watershed Dam J-21 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 Wellington-Napoleon Watershed Dam J-21.