Slack
Slack is a dam located in Owyhee County, Idaho, built in 1916. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Slack
Slack is a dam in Owyhee, Idaho. The dam is private-owned. It impounds the Unnamed Streams Juniper Creek.
The dam stands 20 feet tall and stretches 1,600 feet across, creates a reservoir covering 713 acres, has a storage capacity of 5,000 acre-feet, and collects water from a drainage area of 58 square miles. Completed in 1916, the structure is over a century 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 10/07/2014. That was over 11 years ago.
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Location
| State | Idaho |
| County | Owyhee |
| River/Stream | Unnamed Streams Juniper Creek |
| Coordinates | 42.05620, -116.46010 |
Physical Characteristics
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 1,600 ft |
| Year Completed | 1916 (110 years old) |
Storage & Hydraulics
| NID Storage | 5,000 acre-ft |
| Normal Storage | 5,000 acre-ft |
| Surface Area | 713 acres |
| Drainage Area | 58 sq mi |
| Max Discharge | 92 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Other |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/07/2014 |
| Emergency Action Plan | No |
Identifiers
| NID ID | ID00090 |
| Federal ID | ID00090 |
| More Info | State Dam Safety Program |