Smith-bybee Lakes
Smith-bybee Lakes is a concrete dam located in Multnomah County, Oregon, built in 1981. It carries a Low hazard potential classification.
About Smith-bybee Lakes
The primary purpose of Smith-bybee Lakes is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by City Of Portland (local government). It impounds the Columbia Slough near No Downstream Settlement.
The dam stands 14 feet tall and stretches 100 feet across, creates a reservoir covering 839 acres, has a maximum storage capacity of 4,100 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1981, the structure is 45 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 12/06/2016.
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Location
| State | Oregon |
| County | Multnomah |
| Nearest City | No Downstream Settlement |
| River/Stream | Columbia Slough |
| Coordinates | 45.61512, -122.74324 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 100 ft |
| Year Completed | 1981 (45 years old) |
Storage & Hydraulics
| NID Storage | 4,100 acre-ft |
| Max Storage | 4,100 acre-ft |
| Normal Storage | 4,100 acre-ft |
| Surface Area | 839 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 81 cfs |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | CITY OF PORTLAND |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 12/06/2016 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR00680 |
| Federal ID | OR00680 |
| More Info | State Dam Safety Program |