Joy No. 1 dam
Joy No. 1
Joy No. 1 is a private irrigation dam located on Stinking Water Creek Tributary in Converse, Wyoming. Built in 1984 by designer Detmer R. Knapp, this earth dam stands at a height of 22 feet and has a storage capacity of 188 acre-feet. With a normal storage of 103 acre-feet, the dam serves multiple purposes including fire protection, stock watering, and small fish ponds in addition to irrigation.
The dam's spillway type is uncontrolled with a width of 70 feet, and it features a slide gate outlet. Despite its age, Joy No. 1 is in satisfactory condition with a low hazard potential according to the latest inspection conducted in May 2020. The risk assessment for this dam is moderate (3), indicating a moderate level of risk associated with its operation and maintenance. Overall, Joy No. 1 plays a crucial role in water resource management in the region, contributing to agricultural activities and wildlife support in the area.
Water resource and climate enthusiasts will find Joy No. 1 an intriguing structure due to its location on Stinking Water Creek Tributary and its multiple functions beyond irrigation. The dam's design and construction details, along with its current condition and risk assessment, offer valuable insights into the management of water resources in Wyoming. With Liz Cheney as the Congressional representative for the area, the dam serves as a vital infrastructure supporting the agricultural and environmental needs of the region.
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 Joy No. 1 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Powder River At Sussex | 144 cfs | → |
| Deer Creek In Canyon | 49 cfs | → |
| Belle Fourche R Bl Rattlesnake C Nr Piney Wy | 0 cfs | → |
| Box Elder Creek At Boxelder | 26 cfs | → |
| North Platte River At Orin | 612 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Joy No. 1.
Track Joy No. 1 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 Joy No. 1
Where does the data for Joy No. 1 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 Joy No. 1.