Zonia Southwest Holding Tank dam
Zonia Southwest Holding Tank
Zonia Southwest Holding Tank, located in Kirkland Junction, Arizona, is a privately owned structure regulated by the Arizona Department of Water Resources. This earth dam, with a height of 41.7 feet and a length of 744 feet, serves a primary purpose that is classified as "Other." The dam has a storage capacity of 338 acre-feet and a surface area of 22.7 acres, providing essential water resource management for the surrounding area.
Despite its low hazard potential, the dam at Zonia Southwest Holding Tank is subject to regular state inspections, with the last one conducted in May 2012. The risk assessment for this structure is moderate, highlighting the importance of ongoing monitoring and risk management measures. With a spillway width of 43 feet and uncontrolled spillway type, the dam is designed to handle moderate discharge events and minimize the risk of flooding in French Gulch - TR, the associated river or stream.
For water resource and climate enthusiasts, Zonia Southwest Holding Tank presents an intriguing case study of private ownership, state regulation, and risk management in the realm of water infrastructure. With its location in Yavapai County, Arizona, this earth dam plays a crucial role in water storage and management, emphasizing the importance of sustainable practices and proactive maintenance to ensure the safety and reliability of our water resources in the face of changing climate conditions.
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 Zonia Southwest Holding Tank -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Granite Creek At Prescott | 0 cfs | → |
| Granite Creek Near Prescott | · | → |
| Granite Creek Blw Watson Lake Nr Prescott | · | → |
| Agua Fria River Near Humboldt | 2 cfs | → |
| Hassayampa River Near Morristown | · | → |
| Agua Fria River Near Mayer | 2 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Zonia Southwest Holding Tank.
Boat launches
Campgrounds
- Ghost Town Rd. Congress Dispersed
- Lower Wolf Creek Campground
- Lower Wolf Creek
- Upper Wolf Creek Group Campground
- Ymaca Camp Sky-Y
- Camp Wamatochick
Fishing spots
- Lower Goldwater Lake
- Upper Goldwater Lake
- Horsethief Lake
- Horsethief Boating Site / Day Use Area
- Granite Basin Lake
- Lake Pleasant
Paddle runs
Track Zonia Southwest Holding Tank 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 Zonia Southwest Holding Tank
Where does the data for Zonia Southwest Holding Tank 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 Zonia Southwest Holding Tank.