Ryff and Klassert is an earth dam located in Platte County, Wyoming, built in 1914. It carries a Low hazard potential classification.
Dam profile
NID height · 29 ft29 ft tall and 412 ft long, taller than 65% 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 Ryff and Klassert
The primary purpose of Ryff and Klassert is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Steve Mantle (private). It impounds the Hunton Creek near Torrington.
The dam stands 29 feet tall and stretches 412 feet across, creates a reservoir covering 6 acres, and has a maximum storage capacity of 89 acre-feet. Completed in 1914, the structure is over a century 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. The most recent inspection on record was 05/06/2021.
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Location
| State | Wyoming |
| County | Platte |
| Nearest City | Torrington |
| River/Stream | Hunton Creek |
| Coordinates | 41.86850, -104.99660 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 412 ft |
| Year Completed | 1914 (112 years old) |
Storage & Hydraulics
| NID Storage | 89 acre-ft |
| Max Storage | 89 acre-ft |
| Normal Storage | 53 acre-ft |
| Surface Area | 6 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Steve Mantle |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 05/06/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY00044 |
| Federal ID | WY00044 |
| More Info | State Dam Safety Program |