Deyo is a dam located in Clearwater County, Idaho, built in 2011. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 41 ft41 ft tall and 345 ft long, taller than 87% 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 Deyo
Deyo is a dam in Clearwater, Idaho. The dam is state-owned. It impounds the Schmidt Creek Lolo Creek near Orofino.
The dam stands 41 feet tall and stretches 345 feet across, creates a reservoir covering 55 acres, has a storage capacity of 550 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 2011, the structure is relatively new.
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 07/18/2017.
At 41 feet, this dam is taller than 87% of dams nationwide.
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Location
| State | Idaho |
| County | Clearwater |
| Nearest City | Orofino |
| River/Stream | Schmidt Creek Lolo Creek |
| Coordinates | 46.36710, -116.01450 |
Physical Characteristics
| NID Height | 41 ft |
| Dam Height | 35 ft |
| Dam Length | 345 ft |
| Year Completed | 2011 (15 years old) |
Storage & Hydraulics
| NID Storage | 550 acre-ft |
| Normal Storage | 550 acre-ft |
| Surface Area | 55 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 267 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/18/2017 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | ID00725 |
| Federal ID | ID00725 |
| More Info | State Dam Safety Program |