Sproul Reservoir
Sproul Reservoir is an earth dam located in Grant County, Oregon, built in 1962. It carries a Low hazard potential classification.
About Sproul Reservoir
The primary purpose of Sproul Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Gander Ranch, Llc, Portland (private). It impounds the Hay Creek, Trib Upper Silvies River near Logdell.
The dam stands 24 feet tall and stretches 950 feet across, creates a reservoir covering 42 acres, has a maximum storage capacity of 400 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1962, the structure is well into its service life at over 50 years 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 05/19/2015. That was over 10 years ago.
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Location
| State | Oregon |
| County | Grant |
| Nearest City | Logdell |
| River/Stream | Hay Creek, Trib Upper Silvies River |
| Coordinates | 44.22225, -119.16541 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Dam Length | 950 ft |
| Year Completed | 1962 (64 years old) |
Storage & Hydraulics
| NID Storage | 400 acre-ft |
| Max Storage | 400 acre-ft |
| Normal Storage | 320 acre-ft |
| Surface Area | 42 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 380 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | GANDER RANCH, LLC, PORTLAND |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 05/19/2015 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR00347 |
| Federal ID | OR00347 |
| More Info | State Dam Safety Program |