N-1 dam
N-1
N-1, also known as Cedar Creek Reservoir, is a flood risk reduction dam located in Bourbon County, Kansas. Owned by the local government and regulated by the Kansas Department of Agriculture, this earth dam stands at a height of 64 feet and was completed in 2002. With a storage capacity of 10,705.1 acre-feet and a surface area of 222.12 acres, N-1 serves multiple purposes including flood risk reduction, recreation, and water supply for the surrounding area.
Despite its low hazard potential, N-1 is currently assessed to be in poor condition, indicating a need for maintenance and potential upgrades to ensure its long-term safety and effectiveness. The dam has a moderate risk level of 3, highlighting the importance of continued monitoring and risk management measures. With no outlet gates and an uncontrolled spillway, N-1 plays a crucial role in managing water flow along Cedar Creek and protecting downstream areas from potential flooding events.
Given its strategic location and vital role in the local water resource infrastructure, N-1 serves as a key asset in managing flood risks and ensuring water supply reliability in the region. With proper maintenance and risk management efforts, this dam will continue to safeguard the community and support sustainable water resource management practices in Bourbon County, 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 N-1 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Marmaton R Nr Marmaton | 194 cfs | → |
| Marmaton R Nr Fort Scott | 20 cfs | → |
| Marmaton R Nr Uniontown | 3 cfs | → |
| L Osage R At Fulton | 30 cfs | → |
| Marmaton River Near Nevada | 38 cfs | → |
| East Drywood Creek At Prairie State Park | · | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near N-1.
Boat launches
- Kansas Road Marmaton
- West Atlantic Street 634, Nevada
- South 1500 Road Vernon County
- Vernon County
- Southwest 50th Road Barton County
Track N-1 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 N-1
Where does the data for N-1 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 N-1.