Fool Hollow dam
Fool Hollow
Fool Hollow, located in Navajo County, Arizona, is a state-regulated recreational reservoir built in 1956 for the primary purpose of providing recreational opportunities. The dam, a Rockfill type standing at 60 feet tall and 500 feet long, holds a maximum storage capacity of 5617 acre-feet of water from the Show Low Creek. With a surface area of 152 acres and a drainage area of 102 square miles, Fool Hollow offers a tranquil escape for water enthusiasts and climate lovers alike.
Despite its high hazard potential and poor condition assessment, Fool Hollow continues to attract visitors with its scenic beauty and recreational offerings. The reservoir's maximum discharge capacity is 15,300 cubic feet per second, and its spillway, although uncontrolled, is 100 feet wide. The reservoir's state-regulated status ensures that it undergoes regular inspections and enforcement measures by the Arizona Department of Water Resources, making it a safe and enjoyable destination for outdoor recreation.
With its moderate risk assessment and a history of inspections dating back to 2018, Fool Hollow remains a popular spot for water resource and climate enthusiasts seeking a recreational escape in the heart of Arizona. The reservoir's location in the picturesque city of Taylor, along with its ample storage capacity and surface area, make it an ideal destination for those looking to immerse themselves in nature while also appreciating the importance of water resource management and climate conservation efforts.
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 Fool Hollow -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Show Low Creek Near Lakeside | 0 cfs | → |
| Carrizo Creek Near Show Low | 0 cfs | → |
| East Fork White River Near Fort Apache | 4 cfs | → |
| Little Colorado River At Woodruff | · | → |
| White River Near Fort Apache | · | → |
| Little Colorado River At Greer | 1 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Fool Hollow.
Boat launches
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Campgrounds
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Fishing spots
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River runs
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About Fool Hollow
Where does the data for Fool Hollow 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 High 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 below 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.
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.