Ross
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | Washington |
| County | Whatcom |
| Nearest City | Diablo |
| River/Stream | Skagit River |
| Coordinates | 48.73220, -121.06770 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 540 ft |
| Dam Height | 540 ft |
| Dam Length | 1,300 ft |
| Year Completed | 1949 (77 years old) |
Storage & Hydraulics
| NID Storage | 1,452,750 acre-ft |
| Max Storage | 1,452,750 acre-ft |
| Normal Storage | 1,435,000 acre-ft |
| Surface Area | 11,680 acres |
| Drainage Area | 978 sq mi |
| Max Discharge | 85,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | City of Seattle |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/15/2022 |
| Emergency Action Plan | Yes |