Gs Dd No 17-20a dam
Gs Dd No 17-20a
Gs Dd No 17-20a is a flood risk reduction structure located in Brown, Kansas, along the GREGGS CREEK-TR river stream. Built in 1994, this earth dam stands at a height of 30.2 feet and has a length of 450 feet, providing a maximum storage capacity of 144.4 acre-feet. The primary purpose of this dam is to mitigate flood risks and control debris in the area, with a spillway width of 60 feet to manage a maximum discharge of 600 cubic feet per second.
Managed by the Kansas Department of Agriculture, Gs Dd No 17-20a is regulated and inspected by state authorities to ensure its structural integrity and operational effectiveness. With a low hazard potential and a moderate risk assessment rating, this dam plays a crucial role in protecting the surrounding community from potential flooding events. Despite not having outlet gates, this structure meets the necessary guidelines for emergency preparedness and risk management, enhancing its resilience to climate-related challenges in the region.
Designed by WILBUR NAYLOR P.E., Gs Dd No 17-20a showcases the importance of local government initiatives in water resource management and climate adaptation. As part of the Kansas City District, this dam serves as a vital infrastructure asset in safeguarding the area against flooding and enhancing overall water security. With a focus on public safety and environmental sustainability, this structure exemplifies the collaborative efforts between state agencies and engineers to address the evolving challenges of water resources and climate change.
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 Gs Dd No 17-20a -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Delaware R Nr Muscotah | 321 cfs | → |
| Turkey C Nr Seneca | 242 cfs | → |
| Big Nemaha River At Falls City | 2,530 cfs | → |
| Missouri River At Rulo | 43,900 cfs | → |
| Vermillion C Nr Wamego | 41 cfs | → |
| Soldier C Nr Delia | 42 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Gs Dd No 17-20a.
Boat launches
Campgrounds
More reservoirs
Track Gs Dd No 17-20a 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 Gs Dd No 17-20a
Where does the data for Gs Dd No 17-20a 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 Gs Dd No 17-20a.