Cosgrove John Preston dam
Cosgrove John Preston
Cosgrove John Preston is a privately owned earth dam located in Pittsburg, Oklahoma, with the primary purpose of flood risk reduction. Completed in 1978, the dam stands at an impressive height of 50 feet, with a hydraulic height and structural height of 50 and 56 feet respectively. It has a storage capacity of 350 acre-feet, covering a surface area of 24 acres and serving a drainage area of 1.35 square miles. The dam is regulated by the Oklahoma Water Resources Board (OWRB) and undergoes regular inspections for safety and maintenance.
Despite its low hazard potential, Cosgrove John Preston poses a very high risk of inundation, earning a risk assessment rating of 1. The dam features a controlled spillway with a width of 3 feet and a single valve outlet gate for water release. The last inspection was conducted in June 2011, with an inspection frequency of 5 years. The dam's condition is currently assessed as "Not Rated," indicating the need for further evaluation to determine its structural integrity and safety measures. Given its critical role in flood risk reduction, the dam's risk management measures and emergency preparedness plans need to be closely monitored and updated to ensure the safety of the surrounding area and water resources.
In the Tulsa District of Oklahoma, Cosgrove John Preston serves as a vital infrastructure for managing the flow of the TR-BIG WILDHORSE CR stream. While it has not undergone significant modifications or improvements in recent years, the dam's importance in mitigating flood risks cannot be understated. With state jurisdiction and regulatory oversight in place, the dam plays a crucial role in protecting the local community from potential water-related disasters. Water resource and climate enthusiasts will find Cosgrove John Preston to be an intriguing case study in dam management and the intersection of infrastructure, environmental conservation, and public safety in the face of changing weather patterns and increasing risks of flooding.
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 Cosgrove John Preston -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Canadian River At Calvin | 354 cfs | → |
| North Canadian River Near Wetumka | 214 cfs | → |
| Little River Near Sasakwa | 57 cfs | → |
| Kiamichi River Near Clayton | 680 cfs | → |
| Fourche Maline Near Red Oak | 6 cfs | → |
| Canadian River Near Whitefield | 2,470 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Cosgrove John Preston.
Track Cosgrove John Preston 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 Cosgrove John Preston
Where does the data for Cosgrove John Preston 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 Cosgrove John Preston.