Castro Reservoir is a gravity dam located in Malheur County, Oregon, built in 1982. It carries a Low hazard potential classification.
Dam profile
NID height · 22 ft22 ft tall and 400 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Castro Reservoir
The primary purpose of Castro Reservoir is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Doi BLM (federal). It impounds the Spring Branch Creek near Rome.
The dam stands 22 feet tall and stretches 400 feet across, creates a reservoir covering 12 acres, and has a maximum storage capacity of 107 acre-feet. Completed in 1982, the structure is 44 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 09/18/2018.
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Location
| State | Oregon |
| County | Malheur |
| Nearest City | Rome |
| River/Stream | Spring Branch Creek |
| Coordinates | 42.76870, -117.11086 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 22 ft |
| Dam Length | 400 ft |
| Year Completed | 1982 (44 years old) |
Storage & Hydraulics
| NID Storage | 107 acre-ft |
| Max Storage | 107 acre-ft |
| Normal Storage | 69 acre-ft |
| Surface Area | 12 acres |
| Max Discharge | 5,295 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Doi BLM |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/18/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR03734 |
| Federal ID | OR03734 |
| More Info | State Dam Safety Program |