Jack Murray dam
Jack Murray
Jack Murray is a privately owned dam located in Trinity Church, Choctaw, Oklahoma. Built in 1930, this Earth-type dam stands 20 feet tall and spans 350 feet in length, with a storage capacity of 79 acre-feet. Situated on the TR-Lake Hugo river, Jack Murray is regulated by the Oklahoma Water Resources Board and undergoes regular inspections, with a low hazard potential and a risk assessment rating of "Very High (1)".
Despite its age, Jack Murray remains structurally sound and well-maintained, with a controlled spillway and a single valve outlet gate. The dam's purpose is classified as "Other", with a primary function of water storage and management. Located within the Fort Worth District of the US Army Corps of Engineers, Jack Murray is not associated with any federal agencies and has not undergone any major modifications since its construction.
With its historical significance and vital role in managing water resources in the area, Jack Murray serves as a reminder of the importance of maintaining and monitoring dams for the safety and sustainability of surrounding communities. Climate and water resource enthusiasts will find Jack Murray to be an intriguing case study in dam engineering and regulation, showcasing the intricate balance between human development and environmental stewardship in managing water infrastructure.
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 Jack Murray -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Kiamichi River Near Antlers | 1,920 cfs | → |
| Muddy Boggy Creek Near Unger | 3,090 cfs | → |
| Red River At Arthur City | 4,360 cfs | → |
| Muddy Boggy Creek Near Farris | 917 cfs | → |
| Kiamichi River Near Clayton | 1,270 cfs | → |
| Bois D'Arc Ck At Fm 409 Nr Honey Grove | 2 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Jack Murray.
Boat launches
- Us 271 Pushmataha County
- Choctaw County
- County Road 34775 Lamar County
- Atoka County
- Fm 2820 Lamar County
Campgrounds
- Rattan Landing - Hugo Lake
- Hugo Lake - Kiamichi State Park
- Virgil Point - Hugo Lake
- Kiamichi Park - Hugo Lake
- Raymond Gary State Park
- Sanders Cove Campground
Track Jack Murray 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 Jack Murray
Where does the data for Jack Murray 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 Jack Murray.