Mclellan is a gravity dam located in Coconino County, Arizona, built in 1907. It carries a Low hazard potential classification.
Dam profile
NID height · 33 ft33 ft tall and 293 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 concrete gravity section and the water level is illustrative.
About Mclellan
The primary purpose of Mclellan is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Mclellan Lake Properties, Inc. (private). It impounds the Johnson Canyon near Masonry #2 Dam.
The dam stands 33 feet tall and stretches 293 feet across, creates a reservoir covering 19 acres, has a maximum storage capacity of 110 acre-feet, and collects water from a drainage area of 8 square miles. Completed in 1907, the structure is over a century 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 09/12/2019.
At 33 feet, this dam is taller than 76% of dams nationwide.
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Location
| State | Arizona |
| County | Coconino |
| Nearest City | Masonry #2 Dam |
| River/Stream | Johnson Canyon |
| Coordinates | 35.22139, -112.28306 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 33 ft |
| Dam Height | 21 ft |
| Dam Length | 293 ft |
| Year Completed | 1907 (119 years old) |
Storage & Hydraulics
| NID Storage | 110 acre-ft |
| Max Storage | 110 acre-ft |
| Normal Storage | 76 acre-ft |
| Surface Area | 19 acres |
| Drainage Area | 8 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Mclellan Lake Properties, Inc. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/12/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | AZ00137 |
| Federal ID | AZ00137 |
| More Info | State Dam Safety Program |