Yesness is an earth dam located in Natrona County, Wyoming, built in 1944. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 26 ft26 ft tall and 400 ft long, taller than 55% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Yesness
The primary purpose of Yesness is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by City of Casper, Attn: V. H. Mcdonald (local government). It impounds the Eastdale Draw near Casper.
The dam stands 26 feet tall and stretches 400 feet across, creates a reservoir covering 4 acres, and has a maximum storage capacity of 53 acre-feet. Completed in 1944, the structure is well-established, with more than 75 years of service.
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 04/06/2021.
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Location
| State | Wyoming |
| County | Natrona |
| Nearest City | Casper |
| River/Stream | Eastdale Draw |
| Coordinates | 42.81020, -106.33910 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 26 ft |
| Dam Height | 26 ft |
| Dam Length | 400 ft |
| Year Completed | 1944 (82 years old) |
Storage & Hydraulics
| NID Storage | 53 acre-ft |
| Max Storage | 53 acre-ft |
| Normal Storage | 33 acre-ft |
| Surface Area | 4 acres |
| Max Discharge | 2,012 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | City of Casper, Attn: V. H. Mcdonald |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 04/06/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY01975 |
| Federal ID | WY01975 |
| More Info | State Dam Safety Program |