Johnstown
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | Colorado |
| County | Weld |
| Nearest City | JOHNSTOWN |
| River/Stream | BIG THOMPSON RIVER-OS |
| Coordinates | 40.33750, -104.95918 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 5,737 ft |
| Year Completed | 1925 (101 years old) |
Storage & Hydraulics
| NID Storage | 430 acre-ft |
| Max Storage | 430 acre-ft |
| Normal Storage | 324 acre-ft |
| Surface Area | 35 acres |
| Max Discharge | 294 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | TOWN OF JOHNSTOWN |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/19/2022 |
| Emergency Action Plan | Yes |