Deardorff, Betty Jane is an earth dam located in Clackamas County, Oregon, built in 1971. It carries a Significant hazard potential classification.
Dam profile
NID height · 68 ft68 ft tall and 450 ft long, taller than 96% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.
About Deardorff, Betty Jane
Deardorff, Betty Jane is a dam in Clackamas, Oregon. The dam is owned by Doubletrees Farms (private). It impounds the Little Coal Creek near Scotts Mills.
The dam stands 68 feet tall and stretches 450 feet across, creates a reservoir covering 60 acres, has a maximum storage capacity of 1,300 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1971, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 05/16/2018.
At 68 feet, this dam is taller than 96% of all dams in the United States.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Oregon |
| County | Clackamas |
| Nearest City | Scotts Mills |
| River/Stream | Little Coal Creek |
| Coordinates | 45.00005, -122.55033 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 68 ft |
| Dam Height | 65 ft |
| Dam Length | 450 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 1,300 acre-ft |
| Max Storage | 1,300 acre-ft |
| Normal Storage | 1,030 acre-ft |
| Surface Area | 60 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,170 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Doubletrees Farms |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 05/16/2018 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OR00497 |
| Federal ID | OR00497 |
| More Info | State Dam Safety Program |