Scs-Tonkawa Creek Site-005 dam
Scs-Tonkawa Creek Site-005
SCS-Tonkawa Creek Site-005, located in Anadarko, Oklahoma, is a state-regulated earth dam designed by the USDA NRCS in 1969 for flood risk reduction along the Tonkawa Creek. The dam stands at a height of 30 feet with a hydraulic height of 26 feet, and a structural height of 30 feet. It has a length of 700 feet and a maximum storage capacity of 257 acre-feet, serving a primary purpose of flood risk reduction in Caddo County.
Despite being classified as having a low hazard potential, the risk assessment for SCS-Tonkawa Creek Site-005 indicates a very high risk level, with a DSAC assigned date and no specific risk management measures identified. The dam features a controlled spillway and a single valve outlet gate, with a drainage area of 10 acres and a maximum discharge rate of 1200 cubic feet per second. Although the last inspection date was in 1980, the dam is still listed as in "not rated" condition assessment, emphasizing the need for updated inspection and risk management strategies to ensure the safety and effectiveness of this critical flood control structure.
For water resource and climate enthusiasts, the SCS-Tonkawa Creek Site-005 presents an intriguing case study of a state-regulated earth dam in Oklahoma, highlighting the importance of regular inspection and maintenance to mitigate the identified high risk level. With its historical significance dating back to 1969 and its vital role in flood risk reduction along the Tonkawa Creek, this dam serves as a focal point for ongoing discussions surrounding dam safety, risk assessment, and emergency preparedness in the face of changing climate conditions and increasing water resource challenges in the region.
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-Tonkawa Creek Site-005 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Washita River At Anadarko | 60 cfs | → |
| Little Washita River Ab Scs Pond No 26 Nr Cyril | 0 cfs | → |
| Little Washita River Near Cyril | 1 cfs | → |
| Little Washita River Near Cement | 3 cfs | → |
| Cobb Creek Near Fort Cobb | 2 cfs | → |
| Little Washita River East Of Ninnekah | 9 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Scs-Tonkawa Creek Site-005.
Track Scs-Tonkawa Creek Site-005 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-Tonkawa Creek Site-005
Where does the data for Scs-Tonkawa Creek Site-005 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-Tonkawa Creek Site-005.