Reach 11 Detention Dike 4 dam
Reach 11 Detention Dike 4
Reach 11 Detention Dike 4, located in Maricopa County, Arizona, is a crucial federal structure managed by the Bureau of Reclamation. Completed in 1977, this Earth dam stands at a height of 40 feet and serves primarily for flood risk reduction purposes. With a storage capacity of 11,400 acre-feet, it plays a vital role in managing water resources in the region.
Despite its simple spillway design, Reach 11 Detention Dike 4 has a high hazard potential due to its location and the surrounding topography. The dam has three associated structures and is subject to regular inspections by the Bureau of Reclamation to ensure its safety and integrity. Emergency action plans are in place, although details on its condition assessment are currently unavailable.
Water resource and climate enthusiasts will be interested in the critical role that Reach 11 Detention Dike 4 plays in managing flood risks and safeguarding water supplies in the area. Its location in Phoenix and close proximity to the Los Angeles District highlights its importance in the region's water infrastructure. As climate change continues to impact water resources, structures like Reach 11 Detention Dike 4 are essential for effective water management and resilience against extreme weather events.
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 Reach 11 Detention Dike 4 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Verde River Near Scottsdale | 106 cfs | → |
| Indian Bend Wash At Curry Road | · | → |
| Salt River At Priest Drive Near Phoenix | · | → |
| Skunk Creek Near Phoenix | · | → |
| Verde River Blw Bartlett Dam | 144 cfs | → |
| Salt River Blw Stewart Mountain Dam | 582 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Reach 11 Detention Dike 4.
Boat launches
- East Mccormick Parkway 7505, Scottsdale
- Box Bar Shoreline Area And River Access Point
- Rafter Take-Out Parking
- South Las Palmas Circle 1839, Mesa
- East Leeward Lane 1198, Tempe
- East Mission Bay Drive Gilbert
Campgrounds
Fishing spots
Paddle runs
- Salt River Indian Reservation Boundary To Immediately Above Granite Reef Dam Impoundment
- Lower Verde
- Lower Salt
- Boundary Of The Primary Jurisdiction Below Stewart Mountain Dam To Salt River Indian Reservation Boundary
- Southern Border Of Mazatzal Wilderness To Sheep Creek Bridge
- Red Creek To Southern Border Of Mazatzal Wilderness
Track Reach 11 Detention Dike 4 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 Reach 11 Detention Dike 4
Where does the data for Reach 11 Detention Dike 4 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 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 Reach 11 Detention Dike 4.