Olson Dam
High HazardPoor ConditionEmergency Action Plan: Yes
Location
| State | North Dakota |
| County | Pembina |
| Nearest City | Concrete |
| River/Stream | Tongue River-TR |
| Coordinates | 48.73043, -97.94663 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 74 ft |
| Dam Height | 67 ft |
| Dam Length | 990 ft |
| Year Completed | 1957 (69 years old) |
Storage & Hydraulics
| NID Storage | 1,077 acre-ft |
| Max Storage | 1,077 acre-ft |
| Normal Storage | 61 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 5 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Pembina County WRB |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 11/03/2022 |
| Emergency Action Plan | Yes |