Spring Lake Estates is an earth dam located in Marion County, Oregon, built in 1972. It carries a Significant hazard potential classification.
Dam profile
NID height · 36 ft36 ft tall and 620 ft long, taller than 82% 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 Spring Lake Estates
The primary purpose of Spring Lake Estates is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Spring Lake Estates (private). It impounds the Willamette River, Trib to near Salem.
The dam stands 36 feet tall and stretches 620 feet across, creates a reservoir covering 8 acres, has a maximum storage capacity of 120 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1972, 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 03/10/2020.
At 36 feet, this dam is taller than 82% of dams nationwide.
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Location
| State | Oregon |
| County | Marion |
| Nearest City | Salem |
| River/Stream | Willamette River, Trib to |
| Coordinates | 44.80271, -123.05837 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 34 ft |
| Dam Length | 620 ft |
| Year Completed | 1972 (54 years old) |
Storage & Hydraulics
| NID Storage | 120 acre-ft |
| Max Storage | 120 acre-ft |
| Normal Storage | 104 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 50 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Spring Lake Estates |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 03/10/2020 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OR00532 |
| Federal ID | OR00532 |
| More Info | State Dam Safety Program |