Green Valley Wwtp is an earth dam located in Pima County, Arizona, built in 1981. It carries a Low hazard potential classification.
Dam profile
NID height · 12 ft12 ft tall and 3,932 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Green Valley Wwtp
Green Valley Wwtp is a dam in Pima, Arizona. The dam is owned by Pima County Wastewater Management (local government). It impounds the Santa Cruz River - Os near Tucson.
The dam stands 12 feet tall and stretches 3,932 feet across, creates a reservoir covering 21 acres, has a maximum storage capacity of 219 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1981, the structure is 45 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 02/23/2012. That was over 14 years ago.
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Location
| State | Arizona |
| County | Pima |
| Nearest City | Tucson |
| River/Stream | Santa Cruz River - Os |
| Coordinates | 31.90056, -110.97250 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 3,932 ft |
| Year Completed | 1981 (45 years old) |
Storage & Hydraulics
| NID Storage | 219 acre-ft |
| Max Storage | 219 acre-ft |
| Normal Storage | 159 acre-ft |
| Surface Area | 21 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Other |
| Owner | Pima County Wastewater Management |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 02/23/2012 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | AZ00209 |
| Federal ID | AZ00209 |
| More Info | State Dam Safety Program |