North Jack Rabbit dam
North Jack Rabbit
North Jack Rabbit is a privately owned dam located in Arvada, Wyoming, along the N Jack Rabbit Draw. Completed in 1969, this Earth-type dam serves multiple purposes, including fire protection, stock watering, and small fish pond maintenance. With a height of 20 feet and a length of 818 feet, the dam has a storage capacity of 146 acre-feet and a surface area of 12 acres.
Despite being classified as having a low hazard potential, North Jack Rabbit is regularly inspected and maintained to ensure its structural integrity. The dam's condition was assessed as fair during the last inspection in May 2017, and it is equipped with an uncontrolled spillway with a width of 150 feet. The risk assessment for this dam is moderate, with measures in place to manage any potential risks.
Located in Johnson County, Wyoming, North Jack Rabbit dam plays a crucial role in providing water resources for fire protection and agricultural activities in the area. With its strategic location and functional design, this dam serves as a vital infrastructure for water management and climate resilience in 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 North Jack Rabbit -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Powder River At Sussex | 144 cfs | → |
| Nf Powder River Below Pass Creek | 50 cfs | → |
| Middle Fork Powder River Near Barnum | 22 cfs | → |
| North Fork Powder River Near Hazelton | 3 cfs | → |
| Clear Creek Near Buffalo | 33 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near North Jack Rabbit.
Campgrounds
- Outlaw Cave Campsite 4
- Outlaw Cave Campsite 5
- Outlaw Cave Campsite 3
- Outlaw Cave Campsite 7
- Outlaw Cave Campsite 2
- Outlaw Cave Campsite 1
Paddle runs
- North Fork Red Fork Powder River
- Middle Fork Powder River
- Buffalo Creek (Lower)
- Powder River (Cantonment Reno)
- Beartrap Creek
More reservoirs
Track North Jack Rabbit 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 North Jack Rabbit
Where does the data for North Jack Rabbit 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.