Trophy Lake is an earth dam located in Navajo County, Arizona, built in 1975. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 33 ft33 ft tall and 580 ft long, taller than 76% 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 Trophy Lake
The primary purpose of Trophy Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Northeast Az Migratory Bird Riparian Wildlife Refuge (private). It impounds the Silver Creek - Tr near Taylor.
The dam stands 33 feet tall and stretches 580 feet across, creates a reservoir covering 9 acres, has a storage capacity of 105 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1975, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 07/20/2017.
At 33 feet, this dam is taller than 76% of dams nationwide.
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Location
| State | Arizona |
| County | Navajo |
| Nearest City | Taylor |
| River/Stream | Silver Creek - Tr |
| Coordinates | 34.36506, -110.04500 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 33 ft |
| Dam Height | 33 ft |
| Dam Length | 580 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 105 acre-ft |
| Normal Storage | 105 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 2 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Northeast Az Migratory Bird Riparian Wildlife Refuge |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/20/2017 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | AZ00181 |
| Federal ID | AZ00181 |
| More Info | State Dam Safety Program |