Johnson No. 1
Low HazardFair ConditionEmergency Action Plan: Not Required
Location
| State | Wyoming |
| County | Natrona |
| Nearest City | CASPER |
| River/Stream | MIDDLE CASPER CREEK OFFSTREAM |
| Coordinates | 43.01500, -106.70000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 6,654 ft |
| Year Completed | 1914 (112 years old) |
Storage & Hydraulics
| NID Storage | 12,351 acre-ft |
| Max Storage | 12,351 acre-ft |
| Normal Storage | 11,865 acre-ft |
| Surface Area | 700 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | CASPER CREEK RANCH INC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 04/18/2023 |
| Emergency Action Plan | Not Required |