Denley Brothers Dam is an earth dam located in Douglas County, Oregon, built in 1960. It carries a Low hazard potential classification.
Dam profile
NID height · 23 ft23 ft tall and 500 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 Denley Brothers Dam
The primary purpose of Denley Brothers Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Carissa and Shane Spontini (private). It impounds the Sutherlin Creek, Trib to near Sutherlin.
The dam stands 23 feet tall and stretches 500 feet across, creates a reservoir covering 15 acres, has a maximum storage capacity of 120 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1960, 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 04/10/2009. That was over 17 years ago.
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Location
| State | Oregon |
| County | Douglas |
| Nearest City | Sutherlin |
| River/Stream | Sutherlin Creek, Trib to |
| Coordinates | 43.37633, -123.24807 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 22 ft |
| Dam Length | 500 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 120 acre-ft |
| Max Storage | 120 acre-ft |
| Normal Storage | 120 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 400 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Carissa and Shane Spontini |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 04/10/2009 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR00334 |
| Federal ID | OR00334 |
| More Info | State Dam Safety Program |