Stewart Gulch North Fork
Stewart Gulch North Fork is a dam located in Ada County, Idaho, built in 1997. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Stewart Gulch North Fork
The primary purpose of Stewart Gulch North Fork is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is local government-owned. It impounds the Unnamed Stream Stewart Gulch Creek near Boise.
The dam stands 38 feet tall and stretches 195 feet across, creates a reservoir covering 1 acres, has a storage capacity of 8 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1997, the structure is 29 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 11/20/2018.
At 38 feet, this dam is taller than 85% of dams nationwide.
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Location
| State | Idaho |
| County | Ada |
| Nearest City | Boise |
| River/Stream | Unnamed Stream Stewart Gulch Creek |
| Coordinates | 43.68240, -116.17950 |
Physical Characteristics
| NID Height | 38 ft |
| Dam Height | 38 ft |
| Dam Length | 195 ft |
| Year Completed | 1997 (29 years old) |
Storage & Hydraulics
| NID Storage | 8 acre-ft |
| Normal Storage | 8 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 440 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/20/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ID06022 |
| Federal ID | ID06022 |
| More Info | State Dam Safety Program |