Lake At Southwick - 199th & Mission Rd dam
Lake At Southwick - 199th & Mission Rd
Lake At Southwick, located at 199th & Mission Rd in Johnson, Kansas, is a privately owned reservoir primarily used for fire protection, stock, and recreational purposes. Constructed in 1970 by the USDA NRCS, this earth dam stands at a height of 15 feet and stretches 1500 feet in length, with a storage capacity of 134.2 acre-feet and a surface area of 14.4 acres. Despite its significant hazard potential and poor condition assessment, the dam has a moderate risk level and is regulated by the Kansas Dept. of Agriculture.
The dam's location near the CAMP BRANCH-TR river/stream and its controlled spillway with a width of 55 feet ensure effective water management and downstream safety. With a drainage area of 0.17 square miles and a maximum discharge capacity of 339 cubic feet per second, Lake At Southwick plays a crucial role in mitigating flood risks and providing essential water resources to the surrounding area. However, the dam's condition and hazard potential highlight the need for regular inspections and potential risk management measures to ensure the safety of the community and ecosystem.
Overall, Lake At Southwick serves as a vital water resource for fire protection, livestock, and recreational activities in the region. While facing challenges in terms of condition assessment and hazard potential, the dam's strategic location and design features make it a key element in water management and climate resilience efforts in Johnson, Kansas. Continued monitoring and maintenance will be essential to safeguarding the dam's functionality and ensuring the safety of downstream communities and ecosystems.
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 Lake At Southwick - 199th & Mission Rd -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Blue R Nr Stanley | 60 cfs | → |
| Blue R At Kenneth Rd | 92 cfs | → |
| Blue River At Blue Ridge Blvd Ext In Kc | 137 cfs | → |
| Tomahawk C Nr Overland Park | 23 cfs | → |
| Indian C At State Line Rd | 105 cfs | → |
| Indian C At Overland Park | 31 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lake At Southwick - 199th & Mission Rd.
Boat launches
- East Loch Lloyd Parkway Loch Lloyd
- River Trail Kansas City
- Southeast Raytown Road Lee's Summit
- Olathe Lake Boat Ramp
- Cass County
- West 247th Street Miami County
Track Lake At Southwick - 199th & Mission Rd 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 Lake At Southwick - 199th & Mission Rd
Where does the data for Lake At Southwick - 199th & Mission Rd 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 Significant 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 Lake At Southwick - 199th & Mission Rd.