Scoggins Dam
Scoggins Dam is an earth dam located in Washington County, Oregon, built in 1975. It carries a High hazard potential classification.
About Scoggins Dam
The primary purpose of Scoggins Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Bureau Of Reclamation (federal). It impounds the Scoggins Creek near Forest Grove.
The dam stands 151 feet tall and stretches 2,700 feet across, creates a reservoir covering 1,157 acres, has a maximum storage capacity of 60,000 acre-feet, and collects water from a drainage area of 38 square miles. Completed in 1975, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. An emergency action plan is in place for this dam. The most recent inspection on record was 07/01/2020.
At 151 feet, this dam is taller than 99% of all dams in the United States.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Oregon dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Oregon |
| County | Washington |
| Nearest City | Forest Grove |
| River/Stream | Scoggins Creek |
| Coordinates | 45.47160, -123.20020 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 151 ft |
| Dam Height | 151 ft |
| Dam Length | 2,700 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 60,000 acre-ft |
| Max Storage | 60,000 acre-ft |
| Normal Storage | 59,910 acre-ft |
| Surface Area | 1,157 acres |
| Drainage Area | 38 sq mi |
| Max Discharge | 14,030 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | BUREAU OF RECLAMATION |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 07/01/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OR00685 |
| Federal ID | OR00685 |
| More Info | State Dam Safety Program |