Broken Tank dam
Broken Tank
Broken Tank, located in Coconino, Arizona, is a privately owned water structure primarily used for fire protection, stock, and small fish pond purposes. This Earth-type dam stands at a height of 20.6 feet and has a storage capacity of 123.9 acre-feet, with a surface area of 29.3 acres. The dam is regulated by the Arizona Department of Water Resources and undergoes regular inspections to ensure its safety and compliance with state regulations.
Despite its low hazard potential, Broken Tank poses a moderate risk due to its condition assessment being marked as "Not Rated." The dam's spillway type is uncontrolled, with a width of 70 feet, and it has not been modified in recent years. The last inspection took place in June 2019, with an inspection frequency of 5 years. While an Emergency Action Plan (EAP) has not been prepared or updated, the risk management measures for this structure are currently unspecified.
Water resource and climate enthusiasts may find Broken Tank intriguing due to its unique location and purpose, serving as a vital source of water for fire protection and livestock in the Winslow area. With a moderate risk assessment and a state-regulated status, this dam presents an opportunity for further study and monitoring to ensure the safety of its surrounding community and ecosystem. As a key feature in the water infrastructure of Arizona, Broken Tank highlights the importance of maintaining and managing water resources in a sustainable and resilient manner.
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 Broken Tank -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Chevelon Fork Below Wildcat Canyon | · | → |
| Jacks Canyon Cr Nr Winslow | · | → |
| Little Colorado River Near Winslow | 3 cfs | → |
| Little Colorado River Near Joseph City | 2,700 cfs | → |
| East Verde R Div From East Clear Cr Nr Pine | 5 cfs | → |
| Little Colorado River At Holbrook | 51 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Broken Tank.
Campgrounds
- Chevelon Crossing
- Chevelon Crossing Campground
- Jack's Canyon Camping And Climbing Area
- Chevelon Canyon Lake Campground
- Chevelon Canyon Lake
- Elks Group Campground
Fishing spots
Paddle runs
- 1/4 Mile Below Forest Road 504 Crossing To Forest Boundary In Section 1, T14n, R15e, Gila And Salt River Meridian
- 0.1 Miles Above Diversion At Durfee Crossing To 1/4 Mile Below Forest Road 504 Crossing
- 1/4 Mile Below Chevelon Lake Dam To 0.1 Miles Above Diversion At Durfee Crossing
- 1/4 Mile Below Wiggins Crossing To Confluence With Clear Creek
- Crossing Of Forest Road 96 To Coconino National Forest Boundary
- Below The Dam At Knoll Lake To Confluence With East Clear Creek
Track Broken 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 Broken Tank
Where does the data for Broken 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 Broken Tank.