North Branch Ralston Creek Dam
Iowa — Johnson County — N. BR. RALSTON CR.
Location
| State | Iowa |
| County | Johnson |
| River | N. BR. RALSTON CR. |
| Coordinates | 41.67000, -91.51020 |
Physical Characteristics
| NID Height | 37 ft |
| Dam Height | 37 ft |
| Dam Length | 590 ft |
| NID Storage | 1,016 acre-ft |
| Max Storage | 1,016 acre-ft |
| Surface Area | — |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Satisfactory |
| EAP Status | Yes |
| Last Inspection | October 17, 2024 |
| Inspection Frequency | 2 |
Dam Information
| Year Completed | 1983 |
| Primary Purpose | Flood Risk Reduction |
| Dam Type | Earth |
| Owner Type | Local Government |
| Owner | City of Iowa City |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.