Scs-Pryor Creek Site-15 dam
Scs-Pryor Creek Site-15
SCS-Pryor Creek Site-15, located in Chelsea, Oklahoma, is a state-regulated earth dam designed by USDA NRCS in 1976 for flood risk reduction along the TR-Pryor Creek. The dam stands at a height of 22 feet with a hydraulic height of 20 feet and a length of 1460 feet, providing a maximum storage capacity of 255 acre-feet and a normal storage of 27 acre-feet. Despite its low hazard potential and not being rated for condition assessment, the dam has a very high risk assessment ranking, highlighting the importance of regular inspections and maintenance to ensure its safety and effectiveness in mitigating flood risks in the region.
Owned by the state of Oklahoma and regulated by the OWRB, SCS-Pryor Creek Site-15 features a controlled spillway with a width of 1 foot and a single valve outlet gate for water release. While the dam has not been modified in recent years and lacks an emergency action plan, its risk management measures and inundation maps status remain unspecified. With a very high risk rating and a history of only one inspection in 1980, there is a pressing need for updated assessments and emergency preparedness to safeguard the surrounding community and water resources from potential flooding events. Water resource and climate enthusiasts should closely monitor developments at SCS-Pryor Creek Site-15 to ensure its continued efficacy in flood risk reduction and environmental protection efforts.
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 Scs-Pryor Creek Site-15 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Big Cabin Creek Near Big Cabin | 117 cfs | → |
| Verdigris River Near Claremore | 512 cfs | → |
| Neosho River Near Langley | 13,500 cfs | → |
| Caney River Near Ramona | 213 cfs | → |
| Neosho River Near Chouteau | 1,140 cfs | → |
| Verdigris River Near Lenapah | 2,510 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Scs-Pryor Creek Site-15.
Campgrounds
- Big Creek Ramp - Oologah Lake
- Snowdale State Park
- Spavinaw State Park
- Cherokee State Park
- Chouteau Bend - Fort Gibson Lake
- Bernice State Park
Fishing spots
Track Scs-Pryor Creek Site-15 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 Scs-Pryor Creek Site-15
Where does the data for Scs-Pryor Creek Site-15 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 Scs-Pryor Creek Site-15.