Byron Ponds Dam is a gravity dam located in Yakima County, Washington, built in 1950. It carries a Low hazard potential classification.
Dam profile
NID height · 10 ft10 ft tall and 30 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Byron Ponds Dam
The primary purpose of Byron Ponds Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Wa Dfw (state). It impounds the Tr-yakima River near Prosser.
The dam stands 10 feet tall and stretches 30 feet across, creates a reservoir covering 50 acres, has a maximum storage capacity of 200 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1950, the structure is well-established, with more than 75 years of service.
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 05/08/1998. That was over 28 years ago.
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Location
| State | Washington |
| County | Yakima |
| Nearest City | Prosser |
| River/Stream | Tr-yakima River |
| Coordinates | 46.19319, -119.88615 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 10 ft |
| Dam Length | 30 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 200 acre-ft |
| Max Storage | 200 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 50 acres |
| Drainage Area | 1 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | Wa Dfw |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 05/08/1998 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WA00057 |
| Federal ID | WA00057 |
| More Info | State Dam Safety Program |