Robbins Roy L dam
Robbins Roy L
Robbins Roy L is a privately owned dam located in Ralston, Oklahoma, on the TR-ARKANSAS RIVER. Constructed in 1950, this earth dam stands at a height of 20 feet and has a length of 480 feet, providing a storage capacity of 80 acre-feet. The dam is primarily used for purposes other than flood control or water supply, with a spillway type classified as controlled and a hazard potential rated as low.
Despite its low hazard potential, Robbins Roy L is under state regulation and enforcement by the Oklahoma Water Resources Board (OWRB), with regular inspections conducted every five years. The dam's risk assessment is categorized as very high, indicating potential vulnerabilities that may require management measures in the future. The dam features a single valve outlet gate for water release, and its condition assessment is currently not rated, suggesting a need for further evaluation to ensure its structural integrity and safety.
For water resource and climate enthusiasts, Robbins Roy L presents an intriguing case study in dam management and risk assessment. Located in a high-risk area with a very high risk classification, this privately owned structure on the TR-ARKANSAS RIVER serves as a reminder of the importance of regular inspections and maintenance to mitigate potential hazards. With its low hazard potential but high risk assessment, Robbins Roy L highlights the complex interplay between infrastructure development, environmental factors, and regulatory oversight in ensuring the safety and sustainability of water resources 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 Robbins Roy L -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Arkansas River At Ralston | 1,300 cfs | → |
| Black Bear Creek At Pawnee | 10 cfs | → |
| Hominy Creek Near Hominy | 2 cfs | → |
| Salt Fork Arkansas River At Tonkawa | 52 cfs | → |
| Chikaskia River Near Blackwell | 66 cfs | → |
| Cimarron River Near Ripley | 273 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Robbins Roy L.
Boat launches
Campgrounds
Track Robbins Roy 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 Robbins Roy L
Where does the data for Robbins Roy 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 Robbins Roy L.