Columbia Marsh Unit #1 Dam
Low HazardPoor ConditionEmergency Action Plan: Not Required
Location
| State | Washington |
| County | Grant |
| River/Stream | LOWER CRAB CREEK |
| Coordinates | 46.95834, -119.26000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 20 ft |
| Dam Length | 2,500 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 570 acre-ft |
| Max Storage | 570 acre-ft |
| Normal Storage | 325 acre-ft |
| Surface Area | 58 acres |
| Drainage Area | 5 sq mi |
| Max Discharge | 1,018 cfs |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | US FISH AND WILDLIFE SERVICE |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 09/25/2012 |
| Emergency Action Plan | Not Required |