Garrett H.M. dam
Garrett H.M.
Garrett H.M. is a private dam located in Oil City, Oklahoma, along the TR Little Beaver Creek. Built in 1975, this Earth-type structure stands at a height of 23 feet with a hydraulic height of 20 feet. With a normal storage capacity of 30 acre-feet, this dam serves a primary purpose classified as "Other" and has a low hazard potential rating. Despite being state-regulated and inspected, the condition assessment of Garrett H.M. remains unrated as of the last inspection in 2011.
While the dam poses a low hazard potential, it is crucial to note that the risk assessment for Garrett H.M. is classified as "Very High (1)." The dam's proximity to residential areas and critical infrastructure raises concerns about potential risks associated with its operation and maintenance. Despite the risk management measures not being specified in the data, it is important for water resource and climate enthusiasts to monitor the condition and regulatory compliance of Garrett H.M. to ensure the safety of downstream communities and the surrounding environment.
Overall, Garrett H.M. serves as a significant water resource structure in Stephens County, Oklahoma, contributing to the local water supply and flood control efforts. As enthusiasts in the field of water resources and climate, it is essential to stay informed about the condition, risk assessment, and regulatory oversight of dams like Garrett H.M. to ensure their continued safe operation and protection of downstream areas.
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 Garrett H.M. -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Little Washita River Near Cement | 5 cfs | → |
| East Cache Creek Near Walters | 36 cfs | → |
| Little Washita River Near Cyril | 1 cfs | → |
| Little Washita River Ab Scs Pond No 26 Nr Cyril | 0 cfs | → |
| Little Washita River East Of Ninnekah | 6 cfs | → |
| Washita River At Alex | 147 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Garrett H.M..
Track Garrett H.M. 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 Garrett H.M.
Where does the data for Garrett H.M. 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 Garrett H.M..