Sides No. 1
Sides No. 1 is an earth dam located in Niobrara County, Wyoming, built in 1952. It carries a Low hazard potential classification and has a fair condition assessment.
About Sides No. 1
The primary purpose of Sides No. 1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Werner Ranches Limited Partnership (private). It impounds the Sides Draw near Edgemont, Sd.
The dam stands 30 feet tall and stretches 503 feet across, creates a reservoir covering 15 acres, and has a maximum storage capacity of 234 acre-feet. Completed in 1952, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 08/06/2020.
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Location
| State | Wyoming |
| County | Niobrara |
| Nearest City | Edgemont, Sd |
| River/Stream | Sides Draw |
| Coordinates | 43.20880, -104.63240 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 503 ft |
| Year Completed | 1952 (74 years old) |
Storage & Hydraulics
| NID Storage | 234 acre-ft |
| Max Storage | 234 acre-ft |
| Normal Storage | 148 acre-ft |
| Surface Area | 15 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | WERNER RANCHES LIMITED PARTNERSHIP |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 08/06/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY00529 |
| Federal ID | WY00529 |
| More Info | State Dam Safety Program |