Pine Cone No. 2 is an earth dam located in Carbon County, Wyoming, built in 1977. It carries a Low hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 39 ft39 ft tall and 1,650 ft long, taller than 85% 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 Pine Cone No. 2
The primary purpose of Pine Cone No. 2 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Les & Shelly Dunmire (private). It impounds the Jack Daniels Draw near Rock River.
The dam stands 39 feet tall and stretches 1,650 feet across, creates a reservoir covering 13 acres, and has a maximum storage capacity of 186 acre-feet. Completed in 1977, the structure is 49 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 08/22/2023.
At 39 feet, this dam is taller than 85% of dams nationwide.
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Location
| State | Wyoming |
| County | Carbon |
| Nearest City | Rock River |
| River/Stream | Jack Daniels Draw |
| Coordinates | 41.65833, -106.16667 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 39 ft |
| Dam Height | 39 ft |
| Dam Length | 1,650 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 186 acre-ft |
| Max Storage | 186 acre-ft |
| Normal Storage | 121 acre-ft |
| Surface Area | 13 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Les & Shelly Dunmire |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 08/22/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY00462 |
| Federal ID | WY00462 |
| More Info | State Dam Safety Program |