Morrow Brothers (jefferson) is an earth dam located in Jefferson County, Oregon, built in 1970. It carries a Low hazard potential classification.
Dam profile
NID height · 25 ft25 ft tall and 520 ft long, taller than 50% 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 Morrow Brothers (jefferson)
The primary purpose of Morrow Brothers (jefferson) is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Morrow Bros. Inc. (private). It impounds the Willow Creek near Madras.
The dam stands 25 feet tall and stretches 520 feet across, creates a reservoir covering 17 acres, has a maximum storage capacity of 170 acre-feet, and collects water from a drainage area of 25 square miles. Completed in 1970, 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 09/26/2018.
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Location
| State | Oregon |
| County | Jefferson |
| Nearest City | Madras |
| River/Stream | Willow Creek |
| Coordinates | 44.50592, -120.96899 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 23 ft |
| Dam Length | 520 ft |
| Year Completed | 1970 (56 years old) |
Storage & Hydraulics
| NID Storage | 170 acre-ft |
| Max Storage | 170 acre-ft |
| Normal Storage | 115 acre-ft |
| Surface Area | 17 acres |
| Drainage Area | 25 sq mi |
| Max Discharge | 700 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Morrow Bros. Inc. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/26/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR00487 |
| Federal ID | OR00487 |
| More Info | State Dam Safety Program |