Dd No 6-28 Lower Dam (Sedan City Lake) dam
Dd No 6-28 Lower Dam (Sedan City Lake)
Dd No 6-28 Lower Dam, also known as Sedan City Lake, is a vital structure in Chautauqua County, Kansas, serving multiple purposes such as flood risk reduction and water supply. Completed in 1965, this earth dam stands at a height of 50.1 feet, with a hydraulic height of 53 feet and a structural height of 60 feet, providing a normal storage capacity of 780 acre-feet and a maximum storage capacity of 3,250 acre-feet. Located on Deer Creek, this dam plays a crucial role in managing water resources in the region.
The dam's spillway, with a width of 225 feet, is uncontrolled, and there are no outlet gates associated with the structure. The last inspection conducted in March 2020 rated the dam's condition as fair, with a high hazard potential and a moderate risk assessment. The dam is regulated by the Kansas Department of Agriculture and is subject to state permitting, inspection, and enforcement, ensuring its safe operation and maintenance to mitigate flood risks in the area.
With its proximity to Sedan City and its strategic location on Deer Creek, Dd No 6-28 Lower Dam is a key infrastructure for the community, providing flood protection and water supply for the region. The dam's designers, A&E and USDA SCS, have contributed to its construction and maintenance, highlighting the collaborative efforts involved in managing water resources and climate challenges in Kansas.
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 Dd No 6-28 Lower Dam (Sedan City Lake) -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Caney R Nr Elgin | 60 cfs | → |
| Elk R At Elk Falls | 41 cfs | → |
| Verdigris R At Independence | 1,400 cfs | → |
| Caney River Above Coon Creek At Bartlesville | 63 cfs | → |
| Fall R At Fredonia | 206 cfs | → |
| Verdigris R At Coffeyville | 871 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Dd No 6-28 Lower Dam (Sedan City Lake).
Track Dd No 6-28 Lower Dam (Sedan City Lake) 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 Dd No 6-28 Lower Dam (Sedan City Lake)
Where does the data for Dd No 6-28 Lower Dam (Sedan City Lake) 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 High 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 Dd No 6-28 Lower Dam (Sedan City Lake).