Shear Enlargement of Cochrun is an earth dam located in Crook County, Wyoming, built in 2017. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 35 ft35 ft tall and 950 ft long, taller than 80% 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 Shear Enlargement of Cochrun
The primary purpose of Shear Enlargement of Cochrun is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Jeral V. & Dianne I. Shear (private). It impounds the Cochrun Draw near Farmstead.
The dam stands 35 feet tall and stretches 950 feet across, creates a reservoir covering 13 acres, and has a maximum storage capacity of 158 acre-feet. Completed in 2017, the structure is relatively new.
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 05/25/2022.
At 35 feet, this dam is taller than 80% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Wyoming |
| County | Crook |
| Nearest City | Farmstead |
| River/Stream | Cochrun Draw |
| Coordinates | 44.92330, -104.50220 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 32 ft |
| Dam Length | 950 ft |
| Year Completed | 2017 (9 years old) |
Storage & Hydraulics
| NID Storage | 158 acre-ft |
| Max Storage | 158 acre-ft |
| Normal Storage | 110 acre-ft |
| Surface Area | 13 acres |
| Max Discharge | 450 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Jeral V. & Dianne I. Shear |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 05/25/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY02593 |
| Federal ID | WY02593 |
| More Info | State Dam Safety Program |