Holbrook Reservoir
Holbrook Reservoir is an earth dam located in Lake County, Oregon, built in 1930. It carries a Low hazard potential classification.
About Holbrook Reservoir
The primary purpose of Holbrook Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Steven & Karen Simmons, Bly 97662 (private). It impounds the Fishhole Creek, Trib To Sprague River near Bly.
The dam stands 25 feet tall and stretches 200 feet across, creates a reservoir covering 68 acres, has a maximum storage capacity of 740 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1930, 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 08/08/2018.
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Location
| State | Oregon |
| County | Lake |
| Nearest City | Bly |
| River/Stream | Fishhole Creek, Trib To Sprague River |
| Coordinates | 42.26606, -120.85419 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 200 ft |
| Year Completed | 1930 (96 years old) |
Storage & Hydraulics
| NID Storage | 740 acre-ft |
| Max Storage | 740 acre-ft |
| Normal Storage | 740 acre-ft |
| Surface Area | 68 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 106 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | STEVEN & KAREN SIMMONS, BLY 97662 |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 08/08/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR00119 |
| Federal ID | OR00119 |
| More Info | State Dam Safety Program |