Lion
Lion is an earth dam located in Johnson County, Wyoming, built in 1964. It carries a Low hazard potential classification and has a poor condition assessment.
About Lion
The primary purpose of Lion 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 Tear Drop Cattle Company Llc (private). It impounds the Lion Draw near Arvada.
The dam stands 31 feet tall and stretches 259 feet across, creates a reservoir covering 6 acres, and has a maximum storage capacity of 92 acre-feet. Completed in 1964, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 09/27/2023.
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Location
| State | Wyoming |
| County | Johnson |
| Nearest City | Arvada |
| River/Stream | Lion Draw |
| Coordinates | 44.31890, -106.44220 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 31 ft |
| Dam Length | 259 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 92 acre-ft |
| Max Storage | 92 acre-ft |
| Normal Storage | 54 acre-ft |
| Surface Area | 6 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | TEAR DROP CATTLE COMPANY LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 09/27/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY00587 |
| Federal ID | WY00587 |
| More Info | State Dam Safety Program |