George Mcneff Jr dam
George Mcneff Jr
George Mcneff Jr is a private earth dam located in Grady, Oklahoma, designed for flood risk reduction along Line Creek of the Washita River. With a height of 33 feet and a storage capacity of 52.3 acre-feet, this dam serves an important role in managing water resources and mitigating potential flooding in the area. The dam is regulated by the Oklahoma Water Resources Board and undergoes regular inspections to ensure its safety and effectiveness.
Despite its low hazard potential, George Mcneff Jr is considered to have a very high risk level due to its critical role in flood risk reduction. The dam features a controlled spillway and a single valve outlet gate for water release. While the condition assessment is currently not rated, the dam has a designated inspection frequency of every 5 years to monitor its performance and address any potential issues that may arise. Additionally, the dam does not have an Emergency Action Plan prepared, highlighting the need for continued risk management measures to be in place.
Located in the Tulsa District and under state jurisdiction in Oklahoma, George Mcneff Jr is an essential infrastructure for water resource management in the region. As a private dam, it plays a crucial role in protecting nearby communities from potential flooding events and demonstrates the importance of maintaining and monitoring water infrastructure for climate resilience. With its specific design features and regulatory oversight, George Mcneff Jr stands as a key asset in the ongoing efforts to safeguard water resources and address climate-related challenges in the area.
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 George Mcneff Jr -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Little Washita River East Of Ninnekah | 6 cfs | → |
| Washita River At Alex | 147 cfs | → |
| North Criner Creek Near Criner | 0 cfs | → |
| Little Washita River Near Cement | 5 cfs | → |
| Washita River At Anadarko | 55 cfs | → |
| Little Washita River Near Cyril | 1 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near George Mcneff Jr.
Campgrounds
Track George Mcneff Jr 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 George Mcneff Jr
Where does the data for George Mcneff Jr 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 George Mcneff Jr.