Tillard 38-72-31 Off Channel Reservoir #4 is an earth dam located in Converse County, Wyoming, built in 2023. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 30 ft30 ft tall and 2,700 ft long, taller than 68% 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 Tillard 38-72-31 Off Channel Reservoir #4
Tillard 38-72-31 Off Channel Reservoir #4 is a dam in Converse, Wyoming. The dam is owned by Continental Resources Inc. (private). It impounds the Off Channel near Edgemont, Sd.
The dam stands 30 feet tall and stretches 2,700 feet across, creates a reservoir covering 7 acres, and has a maximum storage capacity of 154 acre-feet. Completed in 2023, 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 07/24/2024.
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Location
| State | Wyoming |
| County | Converse |
| Nearest City | Edgemont, Sd |
| River/Stream | Off Channel |
| Coordinates | 43.22920, -105.55620 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 2,700 ft |
| Year Completed | 2023 (3 years old) |
Storage & Hydraulics
| NID Storage | 154 acre-ft |
| Max Storage | 154 acre-ft |
| Normal Storage | 139 acre-ft |
| Surface Area | 7 acres |
| Max Discharge | 3 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Continental Resources Inc. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/24/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY02934 |
| Federal ID | WY02934 |
| More Info | State Dam Safety Program |