Dad Patterson dam
Dad Patterson
Dad Patterson is a privately owned Earth dam located in Apache County, Arizona, specifically in the city of CONCHO. Built in 1944, this structure serves multiple purposes including Fire Protection, Stock, Fish and Wildlife Pond, and Irrigation. With a dam height of 15 feet and a maximum storage capacity of 198.7 acre-feet, it plays a vital role in managing water resources in the region.
Managed by the Arizona Department of Water Resources, Dad Patterson is subject to state regulations for inspection, permitting, and enforcement. Despite being classified as having a low hazard potential, it is considered to have a high risk due to its condition assessment not being rated and lacking updated emergency action plans. The dam overlooks the MAIL STATION DRAW river/stream and is crucial for supporting fish and wildlife habitats in the area.
For water resource and climate enthusiasts, Dad Patterson represents a significant structure in the region, highlighting the importance of proper maintenance and risk management. With its historical significance and role in supporting various water-related activities, the dam serves as a reminder of the delicate balance between human development and environmental conservation. As efforts continue to assess and improve its safety measures, Dad Patterson stands as a testament to the ongoing challenges and responsibilities associated with managing water resources in Arizona.
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 Dad Patterson -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Little Colorado R Blw Zion Res Nr St. Johns | · | → |
| Little Colorado River Ab Zion Res Nr St. Johns | · | → |
| Little Colorado R Blw Salado Springs | · | → |
| Carrizo Wash Nr St. Johns | 0 cfs | → |
| Little Colorado R Abv Lyman Lake Nr St. Johns | 0 cfs | → |
| Little Colorado River At Woodruff | 0 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Dad Patterson.
Campgrounds
- Petrified Forest Dispersed
- Lym-3
- Lyman Lake State Park
- Brown Creek Campground
- Fool Hollow Lake Recreation Area Campground
- Los Burros Campground
Fishing spots
- Concho Lake
- Lyman Lake
- Fools Hollow Lake
- Bunch Reservoir
- River Reservoir South Fishing Site
- Lee Valley Reservoir
Paddle runs
- Eastern Boundary Of Park (Original Park Boundary) To Western Boundary Of Park (Original Park Boundary)
- South Fork Little Colorado River
- West Fork Little Colorado River
- Headwaters In Mount Baldy Wilderness To 0.1 Miles Above Upper Fish Barrier
- Headwaters In Mount Baldy Wilderness To Wilderness Boundary
- State Highway 261 To 1/2 Mile Above Crosby Crossing
Track Dad Patterson 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 Dad Patterson
Where does the data for Dad Patterson 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 Dad Patterson.