Marks Lake Dam is an earth dam located in Crook County, Oregon, built in 1968. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 301 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 Marks Lake Dam
The primary purpose of Marks Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Mehdi Salari (private). It impounds the Marks Creek near Prineville.
The dam stands 20 feet tall and stretches 301 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 80 acre-feet, and collects water from a drainage area of 14 square miles. Completed in 1968, 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 10/12/2020.
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Location
| State | Oregon |
| County | Crook |
| Nearest City | Prineville |
| River/Stream | Marks Creek |
| Coordinates | 44.46543, -120.42940 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 301 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 80 acre-ft |
| Max Storage | 80 acre-ft |
| Normal Storage | 52 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 14 sq mi |
| Max Discharge | 425 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Mehdi Salari |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 10/12/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR00423 |
| Federal ID | OR00423 |
| More Info | State Dam Safety Program |