Miller
Miller is an earth dam located in Johnson County, Wyoming, built in 1955. It carries a Low hazard potential classification and has a poor condition assessment.
About Miller
The primary purpose of Miller 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 Robinson Canyon Ranch, Llc (private). It impounds the Miller Draw near Arvada.
The dam stands 50 feet tall and stretches 212 feet across, creates a reservoir covering 2 acres, and has a maximum storage capacity of 41 acre-feet. Completed in 1955, 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 05/03/2024.
At 50 feet, this dam is taller than 93% of dams nationwide.
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Location
| State | Wyoming |
| County | Johnson |
| Nearest City | Arvada |
| River/Stream | Miller Draw |
| Coordinates | 44.01583, -106.78083 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 50 ft |
| Dam Height | 47 ft |
| Dam Length | 212 ft |
| Year Completed | 1955 (71 years old) |
Storage & Hydraulics
| NID Storage | 41 acre-ft |
| Max Storage | 41 acre-ft |
| Normal Storage | 29 acre-ft |
| Surface Area | 2 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | ROBINSON CANYON RANCH, LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 05/03/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY00780 |
| Federal ID | WY00780 |
| More Info | State Dam Safety Program |