Hill James L dam
Hill James L
Located in Grady, Oklahoma, the Hill James L dam stands tall with a height of 30 feet and a length of 320 feet. Built in 1960, this private-owned dam on the TR-WEST WINTER CREEK serves a primary purpose of "Other" with a dam type classified as Earth and core type as Stone. The dam has a storage capacity of 70 acre-feet and a maximum discharge of 640 cubic feet per second, making it essential for water resource management in the area.
Despite its low hazard potential, the Hill James L dam is regulated, inspected, and enforced by the Oklahoma Water Resources Board. With a risk assessment rating of "Very High (1)" and a five-year inspection frequency, this structure plays a crucial role in mitigating flood risks and ensuring water security for the surrounding region. Although the condition assessment is currently "Not Rated," the dam's operational efficiency is maintained through a single valve outlet gate.
In the event of an emergency, the Hill James L dam's emergency action plan status is currently not available, emphasizing the need for updated emergency protocols. As an integral part of the local water infrastructure, this dam serves as a critical asset for climate and water resource enthusiasts interested in the intersection of dam safety, risk management, and environmental protection in Oklahoma.
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 Hill James L -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| North Criner Creek Near Criner | 0 cfs | → |
| Washita River At Alex | 147 cfs | → |
| Little Washita River East Of Ninnekah | 6 cfs | → |
| Canadian River At Norman | 179 cfs | → |
| Walnut Creek At Purcell | 53 cfs | → |
| Canadian River At Purcell | 190 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Hill James L.
Boat launches
- Oklahoma River Trail - South Oklahoma City
- Lake Draper Trail Oklahoma City
- Oklahoma City
- Oklahoma River Trail - North Oklahoma City
- Oklahoma Greenway Trail Oklahoma City
Track Hill James L 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 Hill James L
Where does the data for Hill James L 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 Hill James L.