Twin Lakes No. 1
Wyoming — Sheridan County — CONEY CREEK
Location
| State | Wyoming |
| County | Sheridan |
| River | CONEY CREEK |
| Coordinates | 44.60960, -107.31320 |
Physical Characteristics
| NID Height | 91 ft |
| Dam Height | 84 ft |
| Dam Length | 1,835 ft |
| NID Storage | 4,041 acre-ft |
| Max Storage | 4,041 acre-ft |
| Surface Area | 81 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | — |
| EAP Status | Yes |
| Last Inspection | August 20, 2025 |
| Inspection Frequency | 3 |
Dam Information
| Year Completed | 1998 |
| Primary Purpose | Water Supply |
| Dam Type | Earth |
| Owner Type | Local Government |
| Owner | CITY OF SHERIDAN - TOM MANOLIS |
| Other Name | Enl. of 1429r,6502r, 6847r |
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.