Nephi City - Miller Canyon Debris
Nephi City - Miller Canyon Debris is an earth dam located in Juab County, Utah, built in 1963. It carries a Significant hazard potential classification.
About Nephi City - Miller Canyon Debris
The primary purpose of Nephi City - Miller Canyon Debris is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Nephi City (local government). It impounds the Miller Canyon near Nephi.
The dam stands 36 feet tall and stretches 1,350 feet across, has a maximum storage capacity of 90 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1963, 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. An emergency action plan is in place for this dam. The most recent inspection on record was 06/21/2023.
At 36 feet, this dam is taller than 83% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Utah |
| County | Juab |
| Nearest City | Nephi |
| River/Stream | Miller Canyon |
| Coordinates | 39.70351, -111.82243 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Length | 1,350 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 90 acre-ft |
| Max Storage | 90 acre-ft |
| Normal Storage | 50 acre-ft |
| Drainage Area | 1 sq mi |
| Max Discharge | 133 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | NEPHI CITY |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Not Rated |
| Last Inspection | 06/21/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | UT00561 |
| Federal ID | UT00561 |
| More Info | State Dam Safety Program |