Tremaine Reservoir is an earth dam located in Coconino County, Arizona, built in 1952. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 30 ft30 ft tall and 1,935 ft long, taller than 68% of U.S. dams with a recorded height. 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 Tremaine Reservoir
The primary purpose of Tremaine Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Usda Fs (federal). It impounds the Jacks Canyon Trib. near Two Guns.
The dam stands 30 feet tall and stretches 1,935 feet across, creates a reservoir covering 265 acres, has a maximum storage capacity of 8,000 acre-feet, and collects water from a drainage area of 17 square miles. Completed in 1952, the structure is well into its service life at over 50 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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 08/01/2017.
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Location
| State | Arizona |
| County | Coconino |
| Nearest City | Two Guns |
| River/Stream | Jacks Canyon Trib. |
| Coordinates | 34.76000, -111.21746 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 1,935 ft |
| Year Completed | 1952 (74 years old) |
Storage & Hydraulics
| NID Storage | 8,000 acre-ft |
| Max Storage | 8,000 acre-ft |
| Normal Storage | 5,500 acre-ft |
| Surface Area | 265 acres |
| Drainage Area | 17 sq mi |
| Max Discharge | 7,647 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Usda Fs |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 08/01/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | AZ00089 |
| Federal ID | AZ00089 |
| More Info | State Dam Safety Program |