Grassey Lake is an earth dam located in Sanpete County, Utah, built in 1945. It carries a Low hazard potential classification.
Dam profile
NID height · 18 ft18 ft tall and 620 ft long. 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 Grassey Lake
The primary purpose of Grassey Lake is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Forest Service,u.s. -manti-lasal (federal). It impounds the Little Creek near Orangeville.
The dam stands 18 feet tall and stretches 620 feet across, has a maximum storage capacity of 190 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1945, the structure is well-established, with more than 75 years of service.
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 10/01/2002. That was over 24 years ago.
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Location
| State | Utah |
| County | Sanpete |
| Nearest City | Orangeville |
| River/Stream | Little Creek |
| Coordinates | 39.32378, -111.32981 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Length | 620 ft |
| Year Completed | 1945 (81 years old) |
Storage & Hydraulics
| NID Storage | 190 acre-ft |
| Max Storage | 190 acre-ft |
| Normal Storage | 132 acre-ft |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Forest Service,u.s. -manti-lasal |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 10/01/2002 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | UT00125 |
| Federal ID | UT00125 |
| More Info | State Dam Safety Program |